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 0x36074013923d53e55a1b989c71998426428f0049166a110db9bd9541bd2cfcd6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/381b1931-ba9f-4c65-9c37-8102bd30299e.json and https://artists.proofprofile.net/proofs/artist/381b1931-ba9f-4c65-9c37-8102bd30299e.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 0xaa8532cefd54dd29e110023b5dd401205e3073ddb36c56d9c741cc6e7749dcd8. 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/NLS161802565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9653e9bc171f392887b58dae7f19559a9e3106e151654a5d4ae42a0a2aed45. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLS161802568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1786852606c3f3bdfe21c230678abca9574bac85def1b69af2858789937cef. 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/NLS161802571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdcf79f7c40f45323d9052aba179ae923531e7a65107dac3a5369a0a3c11529. 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/NLS161802574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58982a2ec4fd221b54a41bce44bebe1d39feb51b534d9fdf7506fd912759a145. 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/NLS161802575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ed90edd0564509d7319af57d8bec62b4c4722b1cc1496995c7ea56cfb9e7aa. 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/NLS161802578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee6537ab025e1076ceb6bc1d12cfcfa05d791814c648807224327d25e23ab12. 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/NLFL72100258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebec8fb9e44038828d19f551dcff5a4a2896c99f7550ea6961da70757099477f. 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/NLFL72100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1b0ed1a4ba0ebd984046253af11b84d880f122eb410ead563f326166853819. 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/NLFL72100262.
Underground Music - Chaotic Hostility remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f74c8d51d00be1d27bc7b4496687f5c5f89cb3d6e96d2f471f9f1b66feb1702. 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/NLFL72100272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b044705317991014130daf82e0dae9c6ebe6962c87bc46fce353c8ab607537. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLFL72100268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07a31483453c08fafdb798500f5a1137a41bf7edc77f1dcec97ab36355245ce. 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/NLS161802183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690445215f85a7ada70ebe604fab1677d2283cad1a6dbdf1bd1fa4b603981b58. 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/NLS161802184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1128b3331e36d960516a1d79b268bd789775a6c74b6ade3e8371c8d7e546aea7. 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/NLS161802186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bf2174ed02bcf248b70627b732e3b90f3a50ce0405fd0b48e2902b56e39ccc. 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/NLS161802190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8004b4ee2f2d3eb483f7fc275ffe7873cb466a56807b15f31287a543ef939c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLS161802193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee285e14a45372fb1c8eea825aad026bad644182fec80995d9f5150ba8c6e64. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLS161802194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5465da64712ec61b8c50ac712dfdf34d605855362580b83d23ea0a8f7940985b. 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/NLFL72100235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8b4dfacd0e23c24a4cc988b738bb9890a3150d32aea8d14b7cccac0687e6ec. 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/NLFL72100237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7080abb010bf1363f77afed459466a5dafbf1a12846c1719bbaf7953a14131. 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/NLFL72100243.