Meno (; , Ménōn) is a Socratic dialogue written by Plato around 385 BC, but set at an earlier date around 402 BC.Rawson, G., Plato: Meno in the Internet Encyclopedia of Philosophy, accessed on 16 Dece
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9428073cfbe61547c9dd7c6037b34876890bd3fcebb9d241a0fc7b105ff72605. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b1cb0e1-d4a6-4d7b-af46-51686af8d86c.json and https://artists.proofprofile.net/proofs/artist/8b1cb0e1-d4a6-4d7b-af46-51686af8d86c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f553fd0c78d4f0a7a363f6a76e734fc76bba3d1590dc86ca34828c0500134be. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:50:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542368462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff4bd8f11df9e1b3238a401ae8b721ac938273075a7b23cfc85a2062062d03e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2439177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731e00002cccddcfa9b6b2fa1b6a0d4154358088e9b01f8bd1504bd61411fefe. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWR2408293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc767eb01d47e6db60d6b6bcec6fa2bf0bf1742215f24878b072e17a29a3e7cb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22471486.