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 0xfbbf5e097a5d10a8ad1a94ec56d3db1d000415810209cb4e6113d08e9c8f57d3. 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/2ff6c8a3-7781-4559-adf9-52ba86a9bcf7.json and https://artists.proofprofile.net/proofs/artist/2ff6c8a3-7781-4559-adf9-52ba86a9bcf7.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 0xa25a48107d655b5b227328762a0455a75565b4f87f9998f3337a607082cdc66c. 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/NLH3Q2000730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02128ffe6b86537e946325d8cda8255f0f69b8dbc767ca505d0127c851c61761. 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/NLE802200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb179cd704160780895298b5828da9d4c82d98d4ece98e99152f68f3f8d13fee1. 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/DEL712100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905cbf47c46935fef42ef89d43fe535ec2e138aaaa4f232540501be011382d42. 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/DEL712100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fc1d52d2b714ffbf93c10a60b923df18bf1df1d47cc6db6adfef8210cc00c3. 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/DEL712100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c680d8e54dd406b9d5a80784fcb0c023b9bad87099e0aba01c3706946bebb12. 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/DEL712100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc8cc03c9ed3a012f32197f38a2fa150ff97c0fb03d33037e41a127b7bab5d7. 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/DEL712100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71748e29e9f35854276c560703e56ea8a90bf5b682f2afeb416a0d75241cd7f. 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/DEL712100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fca1087ba3d1ea36b348ccf688f71ae551e45725e71d925d153eb0ba5effc03. 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/DEL712100025.
Wildfire - Adaro Remix Radio Edit (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e842f19114b5757eefa3c993e74cf913e282a052a51e03bf35d35b11125e22. 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/DEL712100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd681cf939f226e1b335b718f1e91f547421edd7fa57de61a86af5ea6656e880. 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/DEL712100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa817d72601ec0088a477659223c311c04229a704ea22ccb38ca3d88048988ade. 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/NLE802400378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44109dc80e906e93a5685cbdf6d6b41c28d2a814f8052f5114939fc9bc2ab98. 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/NLE802400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf942e71d9baa8f1a66b4dea832ee47c7c290028ca9d925bd95400279d8810eea. 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/NLE802400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20d2c89e4f9c5331e9e9126d2b88ec7c0cd4fd3d61ad9ccb7a93c1599618787. 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/NLE802400363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca69a92bd6e3d22d6d7b2e36c25ce8d6b1930495ebedaaf192f814d294fde5c8. 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/NLE802300582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0610550ce358c7629067bd43403abb24c5f1e9699d3fdbdb1fa2d6ecfb7253e. 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/NLE802300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c25e49fc1666d01267ed99a641d6b6a0cdb4b89b21d51d600f98768e4a6e45. 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/NLE802400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd8d9157449524581650295c725130313fc678daa900ecf7fa55e20f280773c. 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/NLE802400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680e5c01e129ffe643fa2b0bdb7a174f87e05ef8c5c54b4c223dd8025b422a4a. 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/NLE802400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1110db96e2ad9daf61114f9816290f06fd719df02606704bde32cbd70922f261. 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/NLE802400384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a499f4510d969d9bec5481d063db99bbaba51084118e87909863b949dd3abce. 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/NLE802400381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0610550ce358c7629067bd43403abb24c5f1e9699d3fdbdb1fa2d6ecfb7253e. 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/NLE802300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d41d94e694e8e81a7230102d06f1656712033f6434f8c55adefd9b1d69adf33. 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/NLE802200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc45a1026f745e981208029807e2101a1b9f016dfac6e73a580e1768098847e7. 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/NLE802100656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9f60f25b56f95b0b1102dc7b3637a8b632991aa4617c632e6c4b4dfe11ee16. 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/NLE802100538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2218b31906ade0c179d52e35da4400c3be87aa09a90cc1f81b045fa83bb84573. 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/NLH2L2000176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e1bf4f6c8f54849975e4ef82cda3af025cbb5a71c61d0569b2a3b86310befa. 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/NLE802200582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88afc242df1a1445f2e19b41790d6d0cc43f569ff4d9f704226abe6e163aabb9. 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/NLE802200606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ab3a279736cdc885d8780ff641cc710aa7cf4aca41f19513518597edd77535. 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/NLE802200609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9153a888f9bec4c1e941003fcc783197acc10c8f25dda5eec26e05510a3482d9. 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/NLE802200612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592ad99128dff322303abc9d5a11d8e20afc511e020d58aca08cf984ecef1821. 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/NLE802100714.
The Space We Created (Mixed) - Sephyx Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ad1e3208907a80c0630ac73e2652831a3808042ed00b8a1221112feb6d6e3b. 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/NLE802100722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9847d76184d5105e28e116b0049c8ee2e9b67cd7fb2a3fc7f7e0d6598e25c9c1. 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/NLE802100728.
Colours Of The Night (Mixed) - Bass Modulators Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfacd5145079e345ee7145561edaa7ac5e2d770f6d5463b1a487d87a914bfa47. 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/NLE802100732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8c8f75c3d1020f0555c869354f9320a6427aca49d172bacc37f8cdf7c25d10. 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/NLE802100739.
Primal Energy (Defqon.1 2020 Anthem) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a7cf9f2cda9f1ea18c1f3b487d23dd6992d8e0a833809f2726d4ae409840af. 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/NLH2L2000018.