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 0x2c002c46aff0fc93f7b0282fe02ca484fcee5f9a69137d686d91c50c06e01a9e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87dbfbaa-0433-4c58-a15a-5d93ecd3876d.json and https://artists.proofprofile.net/proofs/artist/87dbfbaa-0433-4c58-a15a-5d93ecd3876d.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 0x4e8187718bf3f2ba7dd1923f0a39acd7b361c39d36b35ae2042ea321a01ab7e4. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:34:49Z), 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/GBLFP1557896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4f6616a8aefa6cbd20374abe9a2e2bf6a7eedd3a75c04eb4d247fd558ddb4f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBLFP1710589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd018780d8f263cab7b996f1fb312f8cc8bffd796f74f17cc15bc506e3d79af4b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBLFP1730397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cf0542b742f433c2a60d620fc63ed53cbcafd4a0dc02b899e8e7f348f77d94. 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/GBLFP1801105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d43b6d5ed2a31ce632565f558dcd7e2271c937f76f89bdfc8c890af695b265. 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/GBLFP1801104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706ecf9d53fb3b763ab3db7cade21f84df77d9675301c696ea1795679fed6c0c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GBLFP1801111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c059c76543cc7138a5f2606661571e8e02751546c4d449c3cda67cf96d77b6f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBUM71802948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9f1bc8b723f6fe59bbc1f82096074a6af88e24692ce9d73e79a74825339110. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:25:56Z), 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/GBMA21865244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9f1bc8b723f6fe59bbc1f82096074a6af88e24692ce9d73e79a74825339110. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/GBMA21865244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578ef2faa7d3f0f649ba81ba9b9aa3392d27fe2dea91977c8a99aca292e22fa8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMBZ91962993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92274a8bddbb112d11495cc0cf0150b4ff911ddd179f0770ed17bdd4e985908. 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/QMBZ91963008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa041ead6d1c63e5af2e2bd1a94ace301cd86c71cbc1686b13dcefb68519ce3bf. 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/QMBZ91963009.
Sugar Daddy (feat. Mr Eazi and Ms Banks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa041ead6d1c63e5af2e2bd1a94ace301cd86c71cbc1686b13dcefb68519ce3bf. 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/QMBZ91963009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e004cb4d6e6f99517d12584bfa78d426b78a5164a04e1b897006fc3fd59c7e. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:54:28Z), 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/QMBZ91963010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92274a8bddbb112d11495cc0cf0150b4ff911ddd179f0770ed17bdd4e985908. 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/QMBZ91963008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af2d22a27c3b04e9ca080bc6dbc822001e599ced0e6122112f5dac1a9856692. 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/UKXN22087050.
Big Tobz & Blittz - HB Freestyle (Season 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e884be4e5aa30b725c7b839667fb36a5d2fcf300f51ff18aef1faa6f4357ac. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:47:49Z), 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/GX3Q92090225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359d4f44965629b4cd236911e1ce65bddffd048dd82e08a91bc2abd6d1a6bba2. 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/GBLFP2485931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99939a7de0a310f2ddbbb51dd277464e56dc1dc62efccb496e73cc9fde118210. 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/GBLFP2494633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac21c916b661960e4e7e0bcf40ac7edd7ef30f34089ffc709bbcc06d5a179500. 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/GX3Q92427403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99939a7de0a310f2ddbbb51dd277464e56dc1dc62efccb496e73cc9fde118210. 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/GBLFP2494633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5423a422215a04ea885ba4aca5bf437db0ab0a2aa63200509b274db7a3a5c458. 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/GX3Q92427405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a3446c41563c04d77e6dde4edf8bef3a735c4cf998cc41fdf85736458c046e. 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/GX3Q92427408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359d4f44965629b4cd236911e1ce65bddffd048dd82e08a91bc2abd6d1a6bba2. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBLFP2485931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db2261bfec196b202387f1474458365ef4caf032e246640e2cbb64d8fa82ecd. 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/GX3Q92427410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50768ff52d84ffee43d2d92aaa158c92d29508e91236902fc646ee28d2eb250. 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/GX3Q92093233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6248c18f19b7fde7123839d995b9a907a421f33c54b7e59e2b63219327b1b8. 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/GXF9Q2571385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa929f9b4dfab70004ff7c51c313677bbd79bba5373169feacd8054f4f01ce5. 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/NLG661800966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f7aeac152aa002fc3d03805de7e3df80ba54d1d3a77c256d4dfb89d2698b4b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR96X1721884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fe6a7c627bbe790be827e3b5f712829030ab23aa4f6af3262ed8810e66c2ee. 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/GBLFP1798139.
Switch It (Remix) [feat. Skengdo, SD Muni, & Big Tobz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa818a155c57a98a8c62751d82382540acda26b5288c56b2c5642f47eddb445. 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/ZZOPM2002214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc829dc0f8c0ee33204de123cb0871fb9e663e9c3b418bd345e98ebb8672b6eb. 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/UKFBX1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac5448f025d1e436f6054aa743f4964a0acd3ed4c7e7ce1862158c727ae70a9. 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/GBLFP2042006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f21e12575dd8cae11919c7711788e92f3cee3c96b4e7a02f19c92e4bf749388. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US23A1528712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1f01a2790957a7824629f3430e5084e76528fa2f210589cc7d312425d297b1. 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/FRX282106816.