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 0x69a43e31c6513ea2f6c85f1cb9a1b4d31c3b725bb5fd8b98305c693daa9ae438. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd16ba6c-f3bc-47bb-a4fd-898db0f23401.json and https://artists.proofprofile.net/proofs/artist/dd16ba6c-f3bc-47bb-a4fd-898db0f23401.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Suzuki Violin School, Vol. 1 (Piano Accompaniment)
Suzuki Violin School Vol. 1: Twinkle, Twinkle, Little Star Variation A (Piano Accompaniment)
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 0xd7fd08ba2edd22b19fd8f4ceddab7c08e9418044437bd854e45b148dd226fb15. 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/QZHZ32223017.
Suzuki Violin School Vol. 1: Twinkle, Twinkle, Little Star Variation B (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c7ab3e4d2d805000098b515e47a755592ba995770c986ad6b3f463bbfb2758. 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/QZHZ32223018.
Suzuki Violin School Vol. 1: Twinkle, Twinkle, Little Star Variation C (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd833da043e647ba782778d43b8cd3465bce40c54e7483a554ce6c57c54d3befb. 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/QZHZ32223019.
Suzuki Violin School Vol. 1: Twinkle, Twinkle, Little Star Variation D (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47629156ba6c392f8790bff0cf9c32e27640716736834a87cb72031062352c54. 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/QZHZ32223020.
Suzuki Violin School Vol. 1: Twinkle, Twinkle, Little Star Theme (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7d125d4c033e8bda4df9c2434e0566912de3f984d4398a6af2958014cf3eb6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHZ32223021.
Suzuki Violin School Vol. 1: Lightly Row (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea97f7da5ec7fad7ac6d43f852789a949c4722adaf06f48474e7dfc3ca414b1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHZ32223022.
Suzuki Violin School Vol. 1: Song of the Wind (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3806631aff3a75d700b1996b7a7d3475d09bc15536d71d3bbc6bb36d491f2e07. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHZ32223023.
Suzuki Violin School Vol. 1: Go Tell Aunt Rhody (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0907fecb14ceceb5d4922d2f096c68ceb9dd114695ed6847d427fd21eec3c2. 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/QZHZ32223024.
Suzuki Violin School Vol. 1: O Come, Little Children (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2439f08cca0d70c9c5705a52b515502bce5b75c369cecef78c887504f96edf2. 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/QZHZ32223025.
Suzuki Violin School Vol. 1: May Song (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5171078d2c35c45aa90e11278d9b1dc64588944c0dc83486d0cb9eba72b1fe. 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/QZHZ32223026.
Suzuki Violin School Vol. 1: Long, Long Ago (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08026ee4d48bd98dee4885a1d0b00b333cdeb87578c4532b74666826c671ff9b. 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/QZHZ32223027.
Suzuki Violin School Vol. 1: Allegro (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd206728a2b9700f9ae0e6a5fc03643ff3e99f54c0707df21f07098b06345c1f. 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/QZHZ32223028.
Suzuki Violin School Vol. 1: Perpetual Motion (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b32c1f94826ebf0a49eef496c5b072b8f2b2b924c54153c6dcb441fd69b3fd6. 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/QZHZ32223029.
Suzuki Violin School Vol. 1: Allegretto (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3a2d0937285b959077b48b3bbd410ec1861fcedabdda275607890d5171cce6. 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/QZHZ32223030.
Suzuki Violin School Vol. 1: Andantino (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41389db50def79f9aef4c8e25bcce9c782de15f83c09b6ee352f1c1ad391bb78. 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/QZHZ32223031.
Suzuki Violin School Vol. 1: Etude (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6eeee262980ea23a94ebd3e51ae2f8b1e9492f1ca67fcae4df17f74187c70c. 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/QZHZ32223032.
Suzuki Violin School Vol. 1: Minuet No. 1 (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef35053fc8383e1281bc0a0d67390500250f83998bbf334a7d9c3ef233339c16. 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/QZHZ32223033.
Suzuki Violin School Vol. 1: Minuet No. 2 (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884ed0e9f0c344496e81835db9684fbf210a9ca6e7f27daea62d6c66db7ea83e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHZ32223034.
Suzuki Violin School Vol. 1: Minuet No. 3 (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3579f7841ea43db931c40ce3a1e20afc62725e8503c1137f5f0d1507c31761e1. 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/QZHZ32223035.
Suzuki Violin School Vol. 1: The Happy Farmer (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadae3a3ad8acf51c3147f0632ac44eb1e87595bc28b8defc54793d4f967af54a. 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/QZHZ32223036.
Suzuki Violin School Vol. 1: Gavotte (Piano Accompaniment)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618bfe2e414da80fccace6b02639aa3a3f003c2ee203754164f9d921dfae6e12. 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/QZHZ32223037.
Suzuki Cello School, Vol. 1 (Piano Accompaniment)
Gabriel Fauré: Morceau De Concours (Piano Accompaniment)