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 0xcb6a5affcb5fe70b22bb0c907600977afad26aafddaa1c01a3042e0725dd7f7d. 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/e5bf19d3-a711-45c0-a1f7-84fbf8c369d8.json and https://artists.proofprofile.net/proofs/artist/e5bf19d3-a711-45c0-a1f7-84fbf8c369d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Disco Gurls Funky House Superstars Compilation 3.0
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 0xc8bf9dbde40541401a1a9cedaa11a0b5f77a1bb1c14037ea9c19fe9042931e93. 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/GBLV62122945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb238ca291673230a1d73cd11fe15ee5047d6a357230f1d9b0afd723c42d4ef. 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/GBLV62123742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cbc0c6ed1eaa16f7ad3b523dc33c3f6495d71951c5c6546af9df23757905c3. 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/GBLV62128589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb98da1cbdde5091c3f75ee22533c1bf7e5282f3008a7fac1132acbbeb1f827. 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/GBKQU2202127.
Disco Gurls Superstars Compilation Vol.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8571bda2b7d0008487522de68a35df7b6d61008c7740855812ed06344d1432. 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/GBKQU2170057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be93884526d243e87ef2d4276546dbc41e46540da38b1e6d2ca03fb853e25cb. 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/GBKQU2269293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2211fc99083cb7230fd0d63cf3a4c45d08e76340a0ca132bbad52898b85d988. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2273590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcbbedc595dc3af159408826f0f70ae3a84f59d1a8233d936f9e291d5724402. 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/GBKQU2272786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e29355118ae628d93c7cc83ccb9ad4bac670c17beaf674fc4cbd3b7bca6c9c. 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/GBKQU2245865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ff937ddfb59cdd894f14dca4490df75112757ea8b21dd8e273f9c4418f852e. 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/GBKQU2243970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60df21773b8242e19ebf93f25b92a0616c79975d2bc3360004fe2f8aefe3b2a0. 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/GBKQU2264576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c2b467c1145642b069744e88da72e3de1541aeafbc8aedd5a947c71196a725. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2258591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4072c6d872f712d0ec3b6e58693786810e854aa1a9364973dc8201c5c127a5. 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/GBKQU2235673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c713e47787b5eb9ce08081cc5af07ced83c213867642a8d45be29551b6543c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:49:19Z), 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/GBKQU2136689.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
U Are Not Welcome Anymore - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc09be15a7c543c7ef2f6eedae2947540cb9f02da4096dcedda8442b02ec36b1. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBKQU2428794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d89fbd884da4a488d8beda5641c54e3b4bbb2d3ed40034b5e47365cccace148. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBKQU2178843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ca9c21daff5add8d75952b66687a663d662359fabc7a8a4399e28067610352. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBKQU2274232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754b0cee8b1116a10af45392013f1b7a9cb7bc61e5aca02bc948fd422d0dd04b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBKQU2272062.