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 0xe95f3003f51d4db5405f1ee298f41c385ff24244722b30fc44e86adfd25a962d. 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/f4186497-40fe-4cbd-bb5a-b8c03966df9d.json and https://artists.proofprofile.net/proofs/artist/f4186497-40fe-4cbd-bb5a-b8c03966df9d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Art Of Skullduggery (Mixed by Greg Downey and Stoneface & Terminal)
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 0x3708a79f463b950f1f9db027253fde34367e89ceb2cf5b1b730fc7211834ea51. 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/NLF712405675.
Always (Richie Blacker & Greg Downey Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc6e5982b764f384f456cbd562df1fb72fa1d7616db848e47666946bd68300c. 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/NLD682201703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651a96697ac385c1a66362d7de5ff208e016705abe4a92ff852819b8a1ad2f2a. 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/NLE712200249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d435252c5029456c0aafcdc4beb908797852be025709395470072d846e377d9. 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/UKRMQ2200450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3940fb3709a6b39a8425b49ae3d5e48a644bb61deb21ec75f4ac394c77a449c1. 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/GBEWA2200221.
Now I Can Breathe Again (Greg Downey Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e5ade3737dea6d88701dbb7405cca2b3b90413b3be861cbf9e10ea50031b2d. 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/NLD681900966.
These Hands I Hold (Richard Durand Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9486cb523e17afbd38813514d80fe32c73e3c3557fd98794ac93ec18ac13baf1. 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/NL8RL2440727.
These Hands I Hold - Richard Durand Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa29ca81d7f77b619dae0c273c82c2e3c9897f9bd92e0557f51f34e066580914. 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/NLD681900507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb433d4ce2ac5621fe1153d4a4963c002e579888b2a934f47dd7292c1b752cfb2. 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/NLD681702596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed4d975876daec1f6237f50e1c7204bb9eb6e493930b56790817e2652644fac. 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/NLD682403061.