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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683196b4ad4d8c6bc6dc21d28d7480fe02af148c198bd5df453f514a7b15eba7. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66f539fe-2ca6-4acd-9464-2bd9d6410daf.json and https://artists.proofprofile.net/proofs/artist/66f539fe-2ca6-4acd-9464-2bd9d6410daf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vodka & Cranberry Juice (Midnight Remix)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122067b8cfb77049eb0838e30e9073fd733d229bc47c7718a3014238be2a9248. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCJPH2515580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861c717b154e701c4cf96abc0183f9add04b3b58e7b84152b5b47b17d7eeb3bc. 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/TCJPH2549677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfc9d2892958a4cff1aaac32b40440661061b3c0ac03c47bb4bea89726c1fca. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCJPH2588469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0c54a4accc6686d22ae029c57e390cb82ffbe9a1ce6ec98b8014b7262d01ca. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCJPI2557127.
Slip into the Galaxy (feat. Warren Vincent Zobeck)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3cd3460021b8c6f5f67304867119d378552a846088807f6eb6b518802aadfd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCJPI2589883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec05e5dcc8e61c98c6b684b36d1d3d114dba12608333b77198436acf273b9f3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPJ2534685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c282077645a1165af575daa37fff813a766d59fe5cc7c54c5f31a3a576b1e7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPJ2570488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca19a5913206cfa260cad222937eafb9aa5b2a44181ce01f28a12de2fb12897. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPJ2596281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3261c9e43fb33464b8488a6b371258ac0a5b77fa281bea7487dd12ff4593a9. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/TCJPL2501971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d976e364310f2d496c35eac403cb8b0a78abd75d8f15025beacb4a1358a6303. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QT66J2519218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d221f4e3e5ddc58d2f08cf94d471fc04d760208ece9336c694f5e62362cb99e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QT66J2557496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd6d5205348c5aaad0d5ca47e69b1877c27ec2ccd912de2be0df7489c1d554f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT66J2583982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0796b52fd02af5d956ade83833b2cd70f46d1bc8e15dc5d7b10b3664926fee86. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QT66K2519836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c376f623ee534210d9ad29da2a3aaf77fa6fefb137042be4acacc405ed08315. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QT66K2542176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075fbc0389f9a8ecd9617b56e645d4a2609db5bc8d95e4132b6f3493c309a4ff. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QT66K2561751.