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 0x0254508ef7ec5e63f7148979dec87807f04771952def325e04ba3ec61c8ff7b3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85ba94c5-c5b5-4c7c-a5d0-393a056b964e.json and https://artists.proofprofile.net/proofs/artist/85ba94c5-c5b5-4c7c-a5d0-393a056b964e.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 0x5704c42148cac06b943637bd05c4b3a7f95a46771d4ee54b0680a72a5b70a86b. 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/TCJPI1975380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdda2fbc5d26edd680f247608f4a054d4e30954913ad81e109bfb260449fb25. 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/TCJPI1975382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee1a1ecaa1d7a80c3d91a70bd7e72ee908b333291b3e63dc2d355b5bb1475bc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPI1975376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced39db1f4ef1f00e1f7594bd85bc88baff3928fa8711609b4c47b1993aa1a26. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCJPI1975378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb63f5200d9d259def302827286d7e384c321c1810148a2a08070bd5fb35b509. 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/TCJPI1975379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285593d9c20cad6d29540d245b5e7a61f5b4ec17005d87fa65642aa1f300b83f. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/TCJPI1975381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b253a52aa0de833d01cc5ad40ae21d839892c5a851ee2333b301086012f7ae. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:55:24Z), 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/TCJPO2153539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1bf1b515eb3fbd21d2d7e62b0beae094d452e2ee817544f5dbff107694e0de. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:58:38Z), 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/TCJPO2164967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3126bd01a96e7c8917c5d7ebbd02502a995b442f49ac1e32148b6c26b66be37b. 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/TCJPS2239121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c416344d558401990a572e9b7c4bc5fe947cf7e420ca87476021849967994d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/TCJPS2278003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7830be51e41a9e6fcddb6556f92f9a0b9e2601798b33ca6a7cb082753121d992. 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/TCJPS2278007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930c7b7e144501a75109b2e1b782dadacbaf58f833225aae28501f9d1738d732. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPS2278015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb516e13c3a1c17927f13c60e17689eb5a21c250ef68ab47d64915731349bad78. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/TCJPS2278021.
Adrenaline (feat. Young Coco & Jin Dogg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8496c3496f423ac6989d9a33b4fc874b468702316620f771212729022ffaeec4. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCJPS2278027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27caaa9aa71420c81df5cd6a2a3795c8a05cfdfa5239688e492fe081f4b66b54. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPS2278040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac7a477b903f34e24fd0397082b569ff7ef1b591c4552d83ec700d3085d5cf9. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/TCJPS2278043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20324f5114dc389c99ec4bb2440b3ba85e3658e7ee14356f4d4e92f434747e9f. 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/TCJPS2278042.
Cali Jap (feat. Daz Dillinger & VOCA Luciano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ea5609adbeea87ac1bcd86fa80d7f2097fc305d50806b090f851af711cf4f4. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPA2421095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb809db447cc67cd5873a2da209c1735b70d37e060610fa34dcfcb4a4ee9902c. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/TCJPB2475797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58bcb61d35a2b41ea624f205359bb17c338e2bd0c21eaf568ee22d0aac175a2. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCJPC2427522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b40f095a4d2956aeaa4ca1506e653d445fa26692dddfb2f5966ea5b67734a22. 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/TCJPC2427524.
Born Fire (feat. MILES WORD, DUSTY HUSKY & 紅桜)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06478e5539f3ee3c5102614c29e564cd54635e7fce9330f9d01ff34d7afc9059. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPC2427528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266242be6a8ed121d80ca4f2c7f629f63043e5070cc4e4d128a2e66df41595ab. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPC2427530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2954800383a1bad13548bd6b6e23a5953f0edf90b3cdbac93528ad57b7598ee8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPC2427534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ced531bd765d65759c2fa3779fbd697fe455d3b5ef98027bad39199d5b2286. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:47:43Z), 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/TCJPC2427537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d4ebee8510f782c3468481fe00c01dc27fc5c54031eee553426720a0a1268e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:23:13Z), 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/TCJPC2427541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c79598aa4634aadbc8c09e1154c8668de6f357daf7b64d3fe5268c9f6c018f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPC2427543.