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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5501b0fac5c504bb8996a768add26a46b1e032592d27fe810b6761298573db11. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f6011a2-1d91-4db2-ac9c-0c835b963d10.json and https://artists.proofprofile.net/proofs/artist/9f6011a2-1d91-4db2-ac9c-0c835b963d10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Merry Christmas! From The United States Military Bands
O Magnum Mysterium (arr. H.R. Reynolds for wind ensemble)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976ece1353559e581fb314e9217adcfd8f4c1671eedb64590212d41a67fc28b9. 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/USA5R1431214.
A Few Notes Between Friends: The Music of Julie Giroux
University of North Texas Symphonic Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa091130a7c5fa092ce91b31c45738cb7ae1cb7aace576833cf90d7a88b619bd1. 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/USB8U1086397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0000ebaad1053dcb63ae6ed107ea4e3cf45afb55191a2924c6000ac235e2d811. 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/USB8U1086398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16fb80d109d068e10d7b16bb8657e387a80335303ca3107b11f322862cf38d2. 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/USB8U1086399.
Bookmarks from Japan: III. The Great Wave Off Kanagawa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f6c86018e21a21408c89ac8909b61c70330384741234ade8dc4a88db0652e0. 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/USB8U1086400.
Bookmarks from Japan: IV. Kinryuzan Temple in Asakusa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1941ed56f6db53acf08f96c0bac31801d711c3959e7fe3bc109712bda62d2d2. 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/USB8U1086401.
Bookmarks from Japan: V. Evening Snow at Kambara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bd63351d18e2588b0389af20969a723b1f5607b0544473e389eb3ba69e6974. 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/USB8U1086402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773c3b5d609fde38e33bc2e45f855035971cfb1bab5281363d63474879f638d2. 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/USB8U1086403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c3b0cac714765e6b040b41221f858671189eae1ced4bf0454b7c58d2aea606. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USB8U1086404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecddead5673f4e2a914e1fb5b5ba9a3280aeaa791ff3d7eb5b0c05e202325e76. 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/USB8U1086405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad41fbbcd9ff6c90b8f7dd7f40fd62098f042fae8d165364058db747283ece6. 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/USB8U1086406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5af5ed65120a9ea455a8b1cd8ca7dc28c2a96253493b89244d1491d6e248465. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USB8U1086407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c2ef465e0f387b5a63ad3a9a615f264acddc17edafcb5604e8d2540870bafb. 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/USB8U1086408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4df0d848eb0819df36bfa0f6d1ac5fc36fdb75762630d34e22b1b4b84a7d93. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/USB8U1086409.
The Right Stuff (arr. for wind ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a15936ca49de044afc70a0a5dfa8be7722b97879315fe0528a57edf257acbe7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USB8U1086410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82646af585d54c809b371c60563a4a2bcdda0a4e1c669bc2811e5d1be1e5b95. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USA5R1133309.
Russian Classics: Wind Band Transcriptions
1812 Festival Overture, Op. 49 (arr. K. Singleton for wind ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b0025b523fb926bff58285b21552cc46b621081b3ba4a778c33b7633d050d9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USA5R1399320.