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 0x0e4c65b4f080f436eae993b916640269f185d9265115ab124fb2b2fe64db7a50. 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/ce4dd979-ab01-4d22-8f7b-2f4229373e6d.json and https://artists.proofprofile.net/proofs/artist/ce4dd979-ab01-4d22-8f7b-2f4229373e6d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ef6b1bb46aa6dd191863661a36df3786903b4ae6731db8106c030886cc3e45. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NZRH10900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86fd9aeae2e956b25ae14f16d9d580563494b52cfd6fc1587c463f0c46bd572. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:31:26Z), 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/NZRH10900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0adc9086e516224de6427f3d5c74245bc56f66314baacb1bfb46d05329767b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NZRH10900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5a1007c1534dc8d7111fa447e22c2f927ce9ab0bd89520caf81b8191ce5a78. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:03:50Z), 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/GBUQH1800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481f583c9329aec2c04767e679c5eb38b35f06ef3c9e33db9b96803c50e5e790. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:22:23Z), 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/GBUQH2100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998f21e5913cf857ef035d496a90c065c9e4d8d921b8e180ad708082a9358592. 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/GBUQH2200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c4c2fb240c7c265ae272be0e6d70e9ca17bd0ac546f8982183ee222d31701e. 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/GBEXH2000037.
The Sweetest Meditation - Julien Dyne Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbf3ebffad9147476740971373f74e09c30ec8a566e0ff725250e40a19f163a. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBUQH1700113.
Anniversary Collection (by Stéphane Pompougnac, Charles Schillings & Ravin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa591a8afdd83c6e77ff698596e7da179f2d69d0565d4906ca92250d55676919. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DECY52001696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ef6b1bb46aa6dd191863661a36df3786903b4ae6731db8106c030886cc3e45. 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/NZRH10900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbecb7f7f4c637fc4fd3538a6068a3efbc91d1c338110ecd6ad7986568470875. 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/DEG931691527.