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 0xe7779960288ab1d8f9951be376c2c7c9172201ce149fdd1d1b215e76e8fd07ba. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33ccf13e-1aa3-45ac-8265-3a5f9fba2a05.json and https://artists.proofprofile.net/proofs/artist/33ccf13e-1aa3-45ac-8265-3a5f9fba2a05.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 0x750c619a97a5b2f5a717eebe281797a5f98b5a3fe22ef89ad21d0f5af317ee21. 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/GBKQU1872691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfd358c5c52c4b9336c66e3cc10db952d92989483f40120e4e74b43412bbe7a. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/GBKQU1872692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738147fd012cdd4a63bd67cae01610c5b91b21e8ad5d0904171b1092f5da5d5c. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/GBKQU1872693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5c65851d8d412aff21802171a674c6e361294f9d5574b219043e1fd94fd19a. 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/GBKQU1872694.
When Luv's The Feeling - Unreleased 2018 Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7505ca5c9af7b19b6ce949e430804d90b80a6fea855dcd39e045b8935536c4. 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/GBKQU1872695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8075dc67f594b50356457d8c4e6de0bad91247cb1c0a0744c5cdaf592bf2f81. 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/GBKQU1872696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7147892ab194ad7dece9ba1b7856585eb6747ac0835332154e9ce089e6d6c74f. 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/GBKQU1872697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06e8b881e66120e2fdc65f89f9cd96740e0f04b860a3ae399320eb33df2b2d3. 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/GBKQU1872699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339705ff5e756217b655cdd22e969fdc89cd5891230fd75bea2ea24b5c0f7f49. 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/GBKQU1872700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f41b59e6e3b79d320f2b90af038afeb306ca79106e5f3cfe4162ad82ea5bcfe. 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/GBKQU1872703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e08fb7f5bd8e1856bbca6641b4c87bb039085aa9722e392b44cf5fbee6ed856. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBKQU1872704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870748b42b95038ef139515965dc9f1a8a0fa066839d9097fce162530c90fe04. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBKQU1872705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4684d4eca806954294c9fe93309f040a8826d36c830a5206bdcbb1d2b3e0a44. 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/US9C21900029.
UpCycle presents The Garage House (Mixed by DJ Fen & Bassboy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6976772a00825d3a52ecbe811cbbcd10a64569bfcaa6dc5bea4398c25a072953. 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/GBDLM2100337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6fe51be955e5a08a1cb31fec052c2a7368f250f314a35c6a946e996999f34a. 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/GBDLM2100345.
Finest House Compilation, Vol. 2 (Summer 2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58be0f047e88a61f1479b22084d9a99eeff13ea2a645973e88324e5fe01d0407. 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/QZF251800070.
Thankful (DJ Passion vs George Jackson (UK) Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0be2845034c6e730411d7f5d3aab429ff1350fb783b2fc1e7939fd383b6e88b. 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/GBDLM2400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4b181b373d5ab0b710e4ab59d708b3137d7c9252d8572cee25831189e99b7f. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBKQU2390305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b430bfc72ef06d08c40d96c1a254547698c51f119f73e4dcd65fd58e92993cf. 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/GBKQU2043308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc25b7df4cbaa0555c7518f9773a2e08fe67b3c317ffa61e0880289fe4109b3e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBKQU2043312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063edfc0e6d9e312e5d11e6a2f2f89d9ef1fe3837a213a1b5ce8e55547e9f6cd. 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/GBKQU2043315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540bedf3dca34d92ebc1853687e8910f94db4dd00dec474c83cee394e1b46d2d. 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/GBKQU2043318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69da618dd90a3ffb414a696872ebda7f25eae8bdd92dadc8cead981cd8639d2a. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBKQU2356715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb605a645ba423c446bf106f56567e6dfa304e369a04b9797982d420bb98c590. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBKQU2212774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4698ae11337f229f39c63385770c18d38da5d8bf9b22197913f15930517f4e34. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2397089.
Another Story, Another Crash (Inc. Reelsoul, DJ Passion Remixes)
Nothing But... Absolutely Jackin', Vol. 08