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 0x1b1be95b7e5646405ec54d50f1bc69de28ee9300c45403ae126e951ce56d09cc. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20b5fdb4-514d-4bbb-8a31-056a36ff44a4.json and https://artists.proofprofile.net/proofs/artist/20b5fdb4-514d-4bbb-8a31-056a36ff44a4.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 0x1a69607c5ed61782c954e3698fbb8bd7458f40d38cca60df7303d1e2529c3883. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USPMZ2418401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564c3215bb88508642b4f54176baedcaaeb7838377ea1bd57148fe895cd30aac. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USPMZ2418403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0aae096a97db8e4353b7d163efcfdc8b12b6768cb8d5f0a13df9aa8f3902dce. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USPMZ2418405.
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
Sunburnt Country: Piano Music from Australia
Noteworthy Women: Piano Music by Female Composers
Wonderful One-Handed Piano Music by Women Composers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f0ada5a38d5d9af2297033bce839d39ae3c14fe91ac5cee053f11bf4ad71c2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US8272300840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9162a3f2599a858c07be17d82dd5e5f00e0672ccfc16880449f1917ca5e005ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US8272300843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951fa97ee569c6455cd506c2cf0958a8cbaf7e65a5d3e4f7896eb474e3239932. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AUFFF0500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554e6ed7d5df1aa8b6d69eeb131203dbe1f9c6a9312291afafa977f2106c2003. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/AUFFF0500042.
Calm: Soothing Classical Music for Relaxation
La Vida Apasionada: No.1, Tango Apasionada - (Version For Small Ensemble)
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.
Cosmic Wheel Of The Zodiac: No.1, In Two Minds. Gemini - (Version For Violin And Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fa23040c8e2f3c7ecbc7963471352e5f5830403a2e5596a4efe31ab9657469. 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/AUAY25200233.
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.
Cosmic Wheel Of The Zodiac: No.4, The Ram In Spring. Aries - (Version For Violin And Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18890cb7835b88775011045515eced2d3fbc710de6921afb1e412219281e1f3b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/AUAY25200232.
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.
Jucaro Rhumba D'amor - (For Violin And Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123103cf53c57d5ea33002f4b23e896ceb78d216ec721f33f6d834dd2588cb0c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/AUAY25200234.