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 0x32954b66cf67f2c836d32cdbe93f01ffc8c5eb14442f89a5976bef95ed5b58e5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c3e20cb-b03f-43cf-97e6-dea49dbcb4d5.json and https://artists.proofprofile.net/proofs/artist/6c3e20cb-b03f-43cf-97e6-dea49dbcb4d5.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 0xa4ff24e93a9e19b81e0f0f75375dad1f3c9a6644c570b4e90373b41de6976012. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:43:54Z), 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/QZES82463937.
You're Just We're Away Better Together (Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aaa12da3206e0bea659f46e0c23b40c5e6a10d86d05502c7322047e4cbca289. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZHN52469656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cff848a4b8c988d7d472f62f85286bc13cf2db4cd3b2eabf6750c7f7020901. 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/SE6XY2517033.
FLINT AND STEEL (Extended Version) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66c70475c0633550c8e1242ea5fda493813a694321a84248aeb50512beead9c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE6XY2553960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9baca12670b7090a5f59d0871b1bb47c6af5fe0b48083f120ae6be9c7ddc38. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/SE6XY2590495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf227d272f8b8215ccb247c39f1f22e3d616134236a9aed8937999af9bd1df5f8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SE6XX2562825.