Masato Suzuki is a Japanese mixed martial artist. Mixed martial arts record |- | Loss | align=center| 4–5–2 | Rumina Sato | Technical Submission (armbar) | Shooto - Vale Tudo Junction 1 | | align=c
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 0xcc23b8041371d2e3f2c3e78e62ad3f5a024d7ded987cf56a8c384ea1ed9b17d3. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6af6b91e-a5f4-45f0-a597-391eaf9761f6.json and https://artists.proofprofile.net/proofs/artist/6af6b91e-a5f4-45f0-a597-391eaf9761f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sonata for Viola da Gamba in G Minor, BWV 1029: I. Vivace (Arr. for Viola)
J.S. Bach: 3 Sonatas for viola da gamba and harpsichord, BWV 1027-1029
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 0xdb1a285c25457cf447a7b6108b19df2edaf23f6740f5e94ecb1f384df718aa09. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR7JM1889010.
Sonata for Viola da Gamba in G Minor, BWV 1029: II. Adagio (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e59bcd5e7b71090d2788e9b9567b0a7ca777b3dae2c6646b8c73df0043a9f2. 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/FR7JM1889020.
Sonata for Viola da Gamba in D Major, BWV 1028: I. Adagio (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bbf2e573dfec6d4c641dd8415c1faaffb47ca40afebb5e870dc23baa00317d. 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/FR7JM1889050.
Sonata for Viola da Gamba in D Major, BWV 1028: III. Andante (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6645aec0b93a48e7363a3376ccffd78de387fe05df46af493dd67777115bf6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR7JM1889070.
Sonata for Viola da Gamba in D Major, BWV 1028: IV. Allegro (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad966de04615608da1895b6846cbecc2618d721a8eae89b7f268c9377163d66c. 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/FR7JM1889080.
Sonata for Viola da Gamba in G Major, BWV 1027: II. Allegro ma non tanto (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe210bada9577480ff497382069e1a3079c2d00d91defced60ecbad9822af4ee4. 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/FR7JM1889100.
Sonata for Viola da Gamba in G Major, BWV 1027: III. Andante (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0e068957025b5401af1ea0d89a3146e8600eaf5874ed47800f7337a346a898. 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/FR7JM1889110.
Sonata for Viola da Gamba in G Major, BWV 1027: IV. Allegro moderato (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773c94dd2ff37aaebe983567c819b8c0928acd80340a6a3b96e70a006dce4e4f. 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/FR7JM1889120.
Sonata for Viola da Gamba in G Minor, BWV 1029: III. Allegro (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7bb89eeb78de738fa6f612570f75e46c0eef5bfacf0e82bdc338ce4cc9ce6c. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FR7JM1889030.
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
Wo soll ich fliehen hin, BWV 5: III. Aria: Ergieße dich reichlich (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6fdaf85f16476cb46a36d7623e68c1721c74e01d6f0db5245d190b8e95e332. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR7JM1889040.
Sonata for Viola da Gamba in D Major, BWV 1028: II. Allegro (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2ee988ca274a1d3aeea78881f61c0fc39bfd6e4f3c062930539dfbdf5a9012. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/FR7JM1889060.
Sonata for Viola da Gamba in G Major, BWV 1027: I. Adagio (Arr. for Viola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4686373e2f5b20c85463cff4ae1528f8f4249ea3d9beafd19f6729bb2daede. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FR7JM1889090.
Harpsichord Concerto No. 6 in F Major, BWV 1057: I. —
J.S. Bach: Concertos for Harpsichord & Strings, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958338835944ed5abaf94cffd0ad308b2c5fb2d17e42518fbea9a440aff00eab. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/SEAEA2281010.
Harpsichord Concerto No. 7 in G Minor, BWV 1058: I. —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19502cf5edbe733d8862d9978d8809f1bebfc185a15318038f63a13fc08b3d46. 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/SEAEA2281070.