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 0x9f739aa4551e8302ea5d7588538999ee1a00684f4fc38d08784fcb1a53f6ad53. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ade036d2-034a-4632-8537-d99e4e81f05b.json and https://artists.proofprofile.net/proofs/artist/ade036d2-034a-4632-8537-d99e4e81f05b.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 0x6ccaff672a68c6924dc84c116537d273917d98712c269ba2f7ae40cafd7471ff. 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/USA2P2458197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd643651941d18742b2dcdc9651d69bcd8f0169034115b04699c34f28c676151e. 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/USA2P2458198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4a0d91cbb95d38ad4062e873c70800a146e6a5e4afa3e47692090e14d9cb97. 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/USA2P2458199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8325dd48f38e7369c9d735c4372900864dd74cb473e7b5680faf38d4624ea9. 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/USA2P2458201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7151962f557b40a3533fc69d68287496605804fc8368f9ba5ff06b2c9d6d2705. 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/USA2P2458202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9206f038bfdf46239bef0669c4c76063f6ec9c1f4adc701a22d9775e5ce1bef9. 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/USA2P2458203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd9b29d2a1c1156d43f15005dc7534f1e46297e9e381045ad921789e1f103f7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA2P2458204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4772c2cbfbe57ec64a9375217a25b648e9c845e0634ec4a1f20eb897c9eaf5fd. 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/USA2P2458205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480b30767c5af05d584480ac79679e66606f9a7217ff0a71d323705e58536cd7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA2P2458214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0aee67a5844d3b2d69c49b4f6db0e25de903e8f07f4bb921b7218c35e1852b5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA2P2458206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a59097ccec7cd917703d18543c5b3a229c4a71592dc41d1704390494f58a8c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2458207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee194d046c6199ac653084004b10d51b8cb08ea628a04492d517cfa092aaf7f. 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/USA2P2458208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a6b08c108e2c66aa3af52a5aa7ef8f89bdb98bfa0e023d7d19b8ebc7ae9d4d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA2P2458215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11ff71240a763b887a28cef64560528ec26fe82b4be4ad6ce5c62d2d4b060a0. 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/USA2P2458216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf30eeb1911193f52aafc65ed56260c671d72b92523a2377ba269fb55df33e9. 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/USA2P2458217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fffb71f75e87590821af343b49e2b1584aecaf83039d708b686d1bf2d8be71. 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/USA2P2458219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b621333c5ecd0162de3a733a8fe9e929fa608ad46263785c1bbce6a0793b331. 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/USA2P2458220.