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 0x49066ad0d5b82049435be859a421550d40733284faec47df1dedb0cb1b94204d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc9d82f6-cc68-42c2-8c3c-284b1ba0a681.json and https://artists.proofprofile.net/proofs/artist/fc9d82f6-cc68-42c2-8c3c-284b1ba0a681.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Memory Eternal: An Orthodox Christian Requiem
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 0x18640c632f1e31ebbd0aa4e341cac912de68b370278de6ad470ac0f82582bc86. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCABQ1303991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16107dcda8eaaa05191b8944c10b5af3dea6b020e36b03af712b133b434db9fd. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCABQ1303992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f829bb906c40a465c4a62287c04d749ebc21c126857538c70e8f75bac20f66a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCABQ1303995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408f933cedca4316bda075bad85d5e53a57aa59eaf0fe9c84520925463e7c85e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCABQ1303999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d5ce71e327d2d6797371524abd1dbb77a0067fb1a1852b526b787dcd76aec5. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/TCABQ1304000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c156a7a2b4a2e176a21ecf8bc6dc64069e983b71c93b8872f885893c02f1c8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCABQ1304005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe4f7e31bcc7e4aaff7a4596b8a47c088ea57375646d389691179938aa26dca. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCABQ1304006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106b54986792b7ac435da5df3d77ebdd09e0fcadc08bf391bc9759687315b027. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:03Z), 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/TCABQ1304007.