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 0xeb0a722dbb86afa33ea6bbf93385543abb6343c3a1683da68ef5b30d44f7d764. 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/821e90db-7a1e-4715-b45b-2bd5fde7522b.json and https://artists.proofprofile.net/proofs/artist/821e90db-7a1e-4715-b45b-2bd5fde7522b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Music for the Beginners' Ballet Class
Piano music for the Beginners' Ballet Class
Russian Piano Music for Advanced Ballet Class
Piano Music for the Beginners' Ballet Class, Vol. 4
Piano Music for Advanced Ballet Class, Vol. 5
Piano music for the Beginners' Ballet Class, Vol. 6
Piano music for the Beginners' Ballet Class, Vol. 7
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 0x4f8d86469408f3f52e7aa3ae7bbcb897675b62ccd86f65563b3534ca988b6476. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:52:05Z), 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/CH6541856292.
Piano music for the Beginners' Ballet Class, Vol. 8
Piano music for the Beginners' Ballet Class, Vol. 9
Piano music for the Beginners' Ballet Class, Vol. 10
Piano Music for Ballet Flore Barre Exercises
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a04cf75e00b42cf40f512fa64fe3c337ba38b7880945c0bb53b2cc8a2a97753. 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/CH6541870082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aebeb0d107392048403145d0a6e946760310349fcdad5125adcccde9d19bebe. 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/CH6541870083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46626318e2b5a4c74b584e921542e83b55f02ca0009dc88d41247d306156b65. 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/CH6541870084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2496c22a977b3d2d99e2203e4f928f0ae8a8207e44fc2109bb2acb3d2f2a3dd5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:08:28Z), 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/CH6541870090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30293e40eb9fd355e82ae62fc99f58ee9333be198e4b13c74754b842c44bfc65. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/CH6541870091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68df9c32e6960746d0f9266e09f388792c0c71edc124344a6f6c187b8349aa7. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:49:22Z), 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/CH6541870094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc13971ef582702b2ce25997518133f339cfe06911dddcb51973d942391ec18. 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/CH6541870097.
Piano music for Stretching Ballet Lessons.
Piano ballet music for Dances and Variations.
Mexican Piano Music for Advanced Ballet Class
French Piano Music for Intermediate Ballet Class
Italian Piano Music for Intermediate Ballet Class
Piano Music for Intermediate Ballet Class, Vol. 25
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbf7ce67946b71a9dcb2386896966ec2ec4c8f3f2a3ff0ec3cc3d4a6f817121. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CH6541995042.
Ballet for Kids. Rhythmic Exercise. Walking and Running.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb25cfba1b2008e9d5e38d90a9c83c7d0f42f57f749549ec735a8eb995c744e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CH6541995043.
Ballet for Kids. Little Ballerina. Révérence.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83edf88f44a20bfded6ab86932cc610f444a561c3fb61fbd73264b21b321c31a. 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/CH6541995046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a11efb34fd935893144e1bb9cfb6c0e905694611a1c59b58155f5cb4503110. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/CH6541995051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbf41ff840ac96163015a431ae87023d930002d4db229d7dbc7b0e4d15a50c0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CH6541995074.
Ballet for Kids. Side Gallops and Chassé.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd7a218fe307b24d645aa670bfb6c4c2ebd94cdc6170ba4bdaa03da7dd8b7fa. 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/CH6541995080.
Broadway Style Piano Music for Ballet Pointe Class
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471c21bb4241536d27fde5155228821f832f712a385a4d6ef9e9b4d3bfb7134b. 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/CH6541999092.
Demi Plié, Grand Plie, Port De Bras. Metre 4/4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93663735dad077d70fbf166d1d7d620a0f5f5b298e474dc6298ece23cc44e209. 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/CH6541999093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660f3c664bb060d4aa2039db988dd7af8979034a2c04acbc95954571564206a9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CH6541999098.