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 0x7b950c7721545ffc7e075346122ea9f4e98e0cd0d6a8e61434a90f1c59069df1. 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/bc72c354-cfd6-46f9-bd0a-2b48b2103964.json and https://artists.proofprofile.net/proofs/artist/bc72c354-cfd6-46f9-bd0a-2b48b2103964.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
60 Minutes of the Best Pilates Piano Music (Volume 1)
60 Minutes of the Best Pilates Piano Music (Volume 2)
120 Minutes of the Best Pilates Music (Deluxe Edition)
60 Minutes of Piano Music with Nature's Sounds
60 Minutes Relaxing Piano Music with Sea Sounds
Piano Music: Relaxing with the Calming Sounds of Nature
60 Minutes Relaxing Piano Music with Nature Sounds
Relaxing Piano Music to Study and Concentrate with Nature Sounds
100 Minutes of Pure Relaxation - Deluxe Edition
BGM Piano Music for Your Work and Study: Sea Place
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 0xef8f2ea71aca7990b94f561c7fd0e8cfe6752bd9e5383c304b6b9a5b4eca1fbe. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), 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/ITR551900238.
BGM Piano Music for Your Work and Study: the Forest
BGM Piano Music for Your Work and Study: River Side
Trentaquattresima Canzoncina per Piccoli
Quarantasettesima Canzoncina per Piccoli
Quarantacinquesima Canzoncina per Piccoli
Quarantaquattresima Canzoncina per Piccoli
La Ruota della Fortuna degli Arcani Maggiori
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ea47791fa4e3cb0dafad980948cfe82953965335793b44f48908fcb34a3127. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:03:21Z), 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/GX5MY2222070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c97f7eefecba13b84a0afee40918e4318b9fb26c97ea30e625353969cb1972. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GX5MY2257062.
Romantische Klaviermusik für den Valentinstag, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13724516144be2ca9ba10e2c54f7048c0c08466fb420f437686ed81f299e58a7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITR551316117.
Música Romántica de Piano para el Día de San Valentín, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e92eb7e430d10ee4b0fdafcea67c7e0ac8cac7900ee82815ca516a7a823436c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITR551316841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13724516144be2ca9ba10e2c54f7048c0c08466fb420f437686ed81f299e58a7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITR551316117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e65d8900a76976c49d02c3c4a4e40b7e91ef11f1bdceef0263148abb66cd51e. 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/ITR551300134.
Christmas Jazz Night 2021: Best X-Mas Jazz Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e88369fac92ae86c5699af61fc912b0b95abf712ee88a9266321e786045abd8. 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/ITR551300137.