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 0x3d7eaa367f231e0db5d2fe0807b6b9ec06a172769febed8fbe26ebc7b6f08dea. 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/b87430f1-3100-47a4-9655-5c9ceb889d8f.json and https://artists.proofprofile.net/proofs/artist/b87430f1-3100-47a4-9655-5c9ceb889d8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Ballet Class: Les Petits for Very Young Children
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 0x4a57ab507d0aa696d165cc78dc2928c96c688927b78941d0e4564920ba75a3a0. 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/IENIB1700148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e82b29caa1b18df422f09dc43a2dd5a2b2c74ef6976fc2dd31d8e69d15322c0. 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/USCGH2184558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81130f4d7a6b2b300cb8c92b50895fef010be2c1693f01b80f24a2ff18e6c342. 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/USCGH2184561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff81a0657bfc5c0f9a9cc681a4964a7876383049257492a893165c29510d1057. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGH2184562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae18e7fc5873c3177a02b7ee32d8648589ed083b52770eea8f36b7e17c0cb5e. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USCGH2184563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc8e35a2aecac50dcd768fc8d3ca692839772ef4af598ac59f206af307d7615. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGH2184564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623199475f23f08e81401edd0082e092ca0a3ecb7d844d4ebbe1f6f71c473683. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:34:34Z), 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/USCGH2184565.
Barre: Frappés et petits battements sur le coup de pied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe983c6b17ac94fd5c6cbb5514ea902394df1346f3ced95a5ec91a99464152354. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:03:03Z), 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/USCGH2184566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc429fac7455b67c5d3672faf49b225db29bc17864c8331249ebd1c9e50f20ab9. 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/USCGH2184567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dc7180f76684a6822f4eec416ca809666ba8f858855239803c411098600ef3. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USCGH2184568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bdf13d432e0ce46127dcd13092a71f488edfa12d986f5fa1c048eca8eba867. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:38:24Z), 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/USCGH2184569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055e5749dfe616ac9f6ee8020cd7ab76b3be37d5dc3feb8d5fcd0e32330056ba. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USCGH2184570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6057affd7394e7942fbc3903292051459b8e8bc142485b2e4e3e16b5dc80545f. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USCGH2184573.
Centre: Echappés, posés et pas de bourrée in 3 (Argentina!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4802c36ebd34b583413a3585af5c9af0f3a5c63a1928a17c79c508cdfbfbc3e9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGH2184581.
Centre: Echappés, posés et pas de bourrée in 2 (Polka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fcb253a7c866459d2a2112a0a2619f76b7dd035fdb8c88c5acac72cff3b811. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:03:45Z), 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/USCGH2184582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73da53dedb4392a94c18db99a479a5de198c7030c0267b4eac5910250c01c2b8. 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/USCGH2184585.
Ballet Class Music : A Journey Through France
Rond De Jambe - Que Reste-T-Il De Nos Amours
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f97da16a7442d1d8474f459ec6fbd4f7bbe0b37c94877ea584297a6267f6d0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGH2390765.
Rendez-Vous avec la danse: Ballet Class Music for Intermediate Level
Gala Music for Professional Ballet Class Cuban Style
Battements glissés (2t 8x8 Happy Friends)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea26e84b1c0af95f16435b55ed00cac672fb766786314bda2a2938f96808c38c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/IENIB1900040.
Walks 16x8 2t (Chopping Wood in the Forest!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1b6b768b8092167721f5bdc57527c02fec76763425a8e9e5b32fd0e42b6aaf. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/IENIB2000076.
Les Petits 2 Ballet Class Music for Children Aged 5 +
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5112593ba068fdc393c3eae77d11dcb8c1232c43d8733ff749f76d0bf8397cbc. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/IENIB1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d76b8bd67729bfca04a0aec98a886d8e8acac3ccc66b2107079ff8e9d98d63. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:24:24Z), 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/IENIB1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a90e7a137e1ff3a57c07ad4bfdc71045dfbf34366463b9140c43644d6d07c68. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:12:35Z), 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/IENIB1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2ac8ee4172c2b8e5624fc13539879a4fd8f65b493eb12993beab686dd08807. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/IENIB1800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b79f5817b91c801d6c39b990d316bc2889e8b70bcaf5cd1d4ab1fc38cb4b9da. 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/IENIB1800035.
Pliés and Pointy Toes: Melting Chocolate Pliés
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe7f92b1f058f66793792c0b60af2180ee80d70f5638a55fd05a2f9ce9f1395. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/IENIB1800040.
Snow Is Falling... (Ballet Class Music for the Winter Festive Season)
Warm Up : Ankles and Feet - Autumn in Beijing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e78f5739384c00c0311e03d3e074fc47647d13d7ed18cdfafe0cfe895d6871. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:05:03Z), 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/IENIB1700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7882b4a70d5a2e58b03c88f05b1a61638d4b65bbbce375a0c3ea6cb56868a726. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/IENIB1700113.
Les Grands - Ballet Music for Adult Classes - Music for Ballet Class
Barre au sol dansée - Impasse des Rivières