This page shows a historical claim
The example’s original body hash is checked for integrity. Its stored checks and claimed level have not been verified here.
Evidence and its limits
Don’t trust.
Open the receipt.
A receipt records a number’s source, request, block and method. Its hash detects changes to that record. Fresh verification must check the evidence independently.
The Proof Ladder
An educational guide to evidence categories. These marks do not verify the example below. A derived value takes its weakest input’s level. AI never raises a level.
| Level | Meaning |
|---|---|
| L0 Sourced | Named origin and observation time. |
| L1 Traced | Exact request and response identity. Third-party APIs stop here. |
| L2 Reproducible | The exact call, pinned to a block hash. |
| L3 Cross-verified | Matching bytes at the same hash from independent provider families, with no successful dissent. |
| L4 Proven | A verified state witness and header binding for the exact returned value. Consensus anchoring is separate. |
Provider agreement, state witnesses and consensus anchoring answer different questions. This page offers no consensus anchoring.
Open the original body.
This historical USDC record claims tokens. Its stored level is Claimed L4. The neutral seal identifies its hash; it does not assert proof.
- Receipt
- rcpt_598424aef8d804a0d833
- Block
- Block hash
- 0x06a33361e95400acb2119f3c963c7b8efd9c52c898933dc8c427a5d4cc2a0631
- Recorded at
- 2026-10-05 07:59:10 UTC
- Call
- totalSupply()
cast call 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 "totalSupply()(uint256)" --block 26124754 --rpc-url https://eth.drpc.org
A matching hash in the recipient checks integrity only; it does not establish that the recorded checks occurred.
A fresh check is separate.
Browser verification is unavailable in this landing build. The historical example has not been re-read, witness-verified or anchored here.
A current check needs the actual pinned header, matching returned bytes and supported evidence. An unavailable proof, conflicting result or missing input cannot be labeled a success.
Checking a number is always free.
Inspection and supported browser checks do not require buying a plan. Managed publication, signatures, global caching and their terms remain separate launch work.
No paid placement.
No ads. No swaps or order flow. No token.
The broader issuer, source-rights and legal policies are being reviewed. No permission to copy or redistribute an external dataset is implied by technical access.
Name the source.
The following labels and capability flags come from the configured registry. They are declarations, not a current health test or an audited independence guarantee.
Ethereum
| Provider | Family label | Archive flag | Proof flag |
|---|---|---|---|
| dRPC | drpc | Declared | Declared |
| MEV Blocker | cow | Declared | Declared |
| Tenderly | tenderly | Declared | Not declared |
| Sentio | sentio | Declared | Not declared |
| Declared | Not declared | ||
| PublicNode | allnodes | Not declared | Declared |
| thirdweb | thirdweb | Declared | Not declared |
| Blockscout | blockscout | Declared | Not declared |
Base
| Provider | Family label | Archive flag | Proof flag |
|---|---|---|---|
| Base | coinbase | Declared | Declared |
| dRPC | drpc | Declared | Declared |
| Tenderly | tenderly | Declared | Not declared |
| Sentio | sentio | Declared | Not declared |
| Declared | Not declared | ||
| PublicNode | allnodes | Not declared | Declared |
| thirdweb | thirdweb | Declared | Not declared |
Arbitrum One
| Provider | Family label | Archive flag | Proof flag |
|---|---|---|---|
| Tenderly | tenderly | Declared | Not declared |
| Sentio | sentio | Declared | Declared |
| thirdweb | thirdweb | Declared | Declared |
| Arbitrum | offchain-labs | Not declared | Declared |
| dRPC | drpc | Not declared | Declared |
| Declared | Declared | ||
| PublicNode | allnodes | Not declared | Not declared |
OP Mainnet
| Provider | Family label | Archive flag | Proof flag |
|---|---|---|---|
| Optimism | op-labs | Declared | Declared |
| dRPC | drpc | Declared | Declared |
| Tenderly | tenderly | Declared | Not declared |
| Sentio | sentio | Declared | Not declared |
| thirdweb | thirdweb | Declared | Not declared |
| PublicNode | allnodes | Not declared | Declared |
Polygon PoS
| Provider | Family label | Archive flag | Proof flag |
|---|---|---|---|
| dRPC | drpc | Declared | Declared |
| Tenderly | tenderly | Declared | Not declared |
| Sentio | sentio | Declared | Not declared |
| QuickNode | quicknode | Declared | Not declared |
| PublicNode | allnodes | Not declared | Declared |
| thirdweb | thirdweb | Declared | Not declared |
Tron
| Provider | Family label | Archive flag | Proof flag |
|---|---|---|---|
| TronGrid | trongrid | Not declared | Not declared |
| PublicNode | allnodes | Not declared | Not declared |
- DefiLlama. Third-party reference in existing Studio paths. No fetch or quoted figure is enabled on this landing page.
- DexScreener. Existing Studio market/indexer paths. No landing integration or republication permission is asserted.
- Blockscout. Configured explorer/indexer and selected RPC paths. Hosted-service and software rights are distinct.
- Sourcify and signature services. Contract/ABI ecosystem. No new site lookup or database-rights claim.
- Tron providers. Latest-only supply observations in supported Studio methods, with named source limitations.
Limits travel with the number.
The landing reads only a chain head
The landing page polls the Base head in your browser. It does not run a fresh reconciliation or offer storage proof verification; those happen in Studio.
A state proof has a narrow scope
A supported storage witness concerns a returned value and its block binding. It does not establish off-chain reserves, economic value or every behavior of a contract.
Tron supply reads cannot pin a historical block
The current Tron adapter returns a latest-only observation. Do not compare it as a same-block EVM proof.
Provider capability varies
An endpoint declaration is not a fresh health, archive, proof-support or organizational-independence audit. A missing result remains missing.
The receipt registry is browser-local
Supported local tools retain receipts in browser memory and can pin selected receipts to local storage. Managed publication, account sync and retention promises are separate launch work.
Coverage is method-specific
The configured chain registry covers EVM networks and Tron. This landing build does not read Solana or provision warehouse datasets.
AI does not create evidence
Supported Studio answers use receipt validation, with source and implementation limits. The model-assisted launch is under review; the landing does not run a model.
Know where a request goes.
The home page reads public data from your browser: it asks public Base RPC endpoints for the latest block every few seconds and fetches DefiLlama’s circulating USDC figure to compare with the contract read. Its hero figure is computed on the server from public RPC reads. No model runs on this site, and analytics and contact collection are disabled. Opening Studio or an external source link starts a separate visit.
Browser RPC requests in supported Studio flows can disclose an IP address and requested contracts or addresses to the endpoint provider. Browser-local storage does not make network activity private. Studio also has server routes; a broad “nothing leaves your browser” promise would be inaccurate.
Hosting and source services have their own processing. No claim of zero logging, confidentiality or a blanket no-proxy policy is made here. Public privacy terms remain under review.