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 0x4285817ff7691911988acc724ec86501186ba11fb5dfc5bfbdb6ebe75575b030. 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/6cfba62d-63be-4391-85d9-6f4a31ed8b2a.json and https://artists.proofprofile.net/proofs/artist/6cfba62d-63be-4391-85d9-6f4a31ed8b2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x9c5d69589ac5ef324237bc4025f901beecd113b54d0ba97e1b17d650be3bf859. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/DEVH21800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45803223790539e220e41a24a592c44c60bf62f44776bdf60bd5a71bbd24d528. 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/DEVH21800301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45803223790539e220e41a24a592c44c60bf62f44776bdf60bd5a71bbd24d528. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEVH21800301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfe38e3f63da02d8fda50810bd492161cbf40ce735494a4188d71b91f613521. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/DEVH21800711.
IPE002 (Overload/Untitled New Beat Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de386f88bdf144d8fd5dd3a5c0cbb83c34e16509f310b5fc0576dd082aa6b05. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZWFS2551916.
I Make Music For Myself And I DJ For Money
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6600ff71895c0f3f7bbaaf6d3a2b7c185e183f2cda6b70228091dce5a7b4f671. 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/DEVH21800634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817b91813ddef92e4c45a6abfc2e4700bf58866ddd3093d3983bcb602408fffc. 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/DEVH21800639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa614a57397c0e6defb8f3747beb76eba81434b34d9da69b26c268a94665b49a. 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/DEVH21800417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6bf6b0243e162d8e824ce674cad4641bfef8138623d32b405c0834e9e8cff9. 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/DEEC32100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e8d59a69a4f9db44dc4b1fb3e4de776ea9e412d88c59e7f25f41abd2f00272. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEEC33501014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81514d7d3e8c6bd0bb17dc6b58f3af6100bdc63e23a174817839e07d43e4d234. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEVH21800366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2877e60cf3d078f35707d473e2581a65c8519e7e4fb97757f6a10304f03a67d9. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DECY51901282.
Music for Dreams: The Sunset Sessions, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c504ce1738e0ced05c5378a54bd3ad40e82b90a4d1c11c921a40e944e5d3f6f. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DKAZ71582011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd659ae55b103e05eb78f6ff76bb155cdbcb7d096abc8ec944f64d7f44d1f73b0. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/DECY61400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e72fb8b1af61b21cc1f6015e4df1be8e9680ac42e02b65bfa5dca45a14fbf38. 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/DEVH21800225.
Don't Be Afraid of Monsters (Bell Towers' Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa32549aa96462e314638d8cd7ba0c65a8a927f7337e23d5635f20a9882d496d. 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/QMB622116312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801be30e66cf3729180c89fa213f447e9c9062af445f2047dad5ba70dbc920d2. 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/AUQJ31412217.