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 0x1fc75dd05d6b689fe97beb47a5753fe4a0c184d99bc435965db2fd16b027a1ad. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a58c69f-a6e1-41ad-8b9c-20a48c11f2b1.json and https://artists.proofprofile.net/proofs/artist/4a58c69f-a6e1-41ad-8b9c-20a48c11f2b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Vida Apasionada: No.1, Tango Apasionada - (Version For Small Ensemble)
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 0xd191a6f4c87370cc34d21df2dc9e3161f7443332c8f0a342cc0c8d273436e8d8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AUAY25200224.
La Vida Apasionada: No.2, Bossa Sonora - (Version For Small Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08103b23b3146b18b92299f4370a336427b5650b8546309c867d98a1d1d1684. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AUAY25200225.
La Vida Apasionada: No.8, Jucaro Rhumba D'amor - (Version For Small Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc108ce9add3a46266495253ac93ae9d7b86eb24c9decf107e3560f78cd3251f3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/AUAY25200231.
La Vida Apasionada: No.6, Danza De La Alegría - (Version For Small Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8000b6c6014b88775559383741161e3656fe84b441612ae8d493c620e65b17a. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:38:45Z), 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/AUAY25200229.
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
La Vida Apasionada: No.3, Summer Samba - (Version For Small Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e490911f7a2fa2b1f7913883cf8e9a2153d954d1e6f4896f764a836ef43ba8b. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/AUAY25200226.
La Vida Apasionada: No.4, Tristeza Del Corazón Roto - (Version For Small Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9de43b0938cc6c727196e691cc215b50526553642c6986502fec2f5850c4374. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUAY25200227.
La Vida Apasionada: No.5, Morning Star Cha Cha Cha - (Version For Small Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66104727be7d05246a06b9dc3b4b6004fbfbc306ae4b297b42a94a399f1eb9f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUAY25200228.
La Vida Apasionada: No.7, Primavera Waltz - (Version For Small Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09d662a7e6ae96473f64d87ac91c9435ff810093da511a6d134473d388e9c9d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUAY25200230.