1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd979d23e2a6fff637f7d9a26cdcb874a997bc27d959d50fde7715d22ccb3e276. 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/44a938fb-57ec-484a-ac9e-69f7f7b2ebdd.json and https://artists.proofprofile.net/proofs/artist/44a938fb-57ec-484a-ac9e-69f7f7b2ebdd.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 → block OTSBitcoinBlock must exist at that height 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 0xccea6a434f1f8a7318cc578c70785281047ef5906c8e7bd367b08ed0874b7052. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR59R1871520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0067de4101886389b0aabe4c2229f19067dcdeda1bf57034dff34ad66cca83. 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/FR59R1871527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ed9f45e18d9ccf0bf87ac481eccb1f677d30ebf1a6802db710b284242f720a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR96X1804812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b39688339cf071b4c0330d42f102ed3ef2802f772acfe872e9e23d54106176d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX201959237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311d0f80a79da7295b0d88c8e73525421b898a62997b970d43caa9a276fe201d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX201959239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79277bfaa972f2f91f08e43e456b9715603c237f2a5e628b034be2db96f542fe. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX201959243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20351d3065a7df2582b8e14bd951d22d4d5b52d27906eab3382e38b6b5afc06d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX201959246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c57f729f1ca028a564d8f25650ca24f9eb6842331faacad983bbbf84f87e9f4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX201959248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd111e171595e6b19260b09e1f4335e2d396d8a35d6e619d698b9b32ffece4560. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRX282182639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc5c1f7c7871e14306d74267048fee41f43214b3ec08e6c6cde198d24bfed10. 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/FRX452155206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa639f0c2d9a2dfb0878240715119960647e73541133126a972ee8d270c9eab9. 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/FRX452155207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f617b78ac079ea5f58549377b12d86910937cf4b0a5b42cc453ad746b74af61. 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/FRX452155208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9519ae25bcb5544c9a74874e5088cc09d415a6737147dc57dc9b346f6e40e1f2. 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/FRX452155209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1353caaece5e741476ad9a3c0c193a448b4979a734e104a7b7260039dcce6fdd. 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/FRX452155210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3638c80791ffd2d5df3c6e90154cbb1cdcb32eb4d3113ec5fafc542006dce13c. 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/FRX452155211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f3da1744f08aad419faa41604b5f3d1ffd24886243d719a9b7c58887debcb1. 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/FRX452155212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c432fce24e5448178a0149ce69d3601e2a598c91b73eeb8179b427978958ce5. 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/FRX452155213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f8661f93960c9603b26566bdf118a8d1c7e5a7e0dad5c8d9d13df4087b2d0c. 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/DGA072366999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f8bade2cbb82d246efb62bd2c7579bbd3c52c6e92235dc90fdb286f6090b94. 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/DGA072367000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77363ab6fbc4d8ba7b5649e6b8b4cdce76fa50d831c78e40c9366e8fe13f12cf. 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/FRX872024496.