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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68891f70ecfdefbac1e9285a59ef9bf03176686e2df5fca813f330ce7fa5b44. 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/087bcd82-0abd-4b1a-b68d-d0671c90cb94.json and https://artists.proofprofile.net/proofs/artist/087bcd82-0abd-4b1a-b68d-d0671c90cb94.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd108047ea4d9868ae58f29c4f7d25fe1db64b6e94ddf31da9b75534dce97847f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GB6LT2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35be7d16ad1d202db619b9cdd0295de151b4e4b6a59af24e6b115a673dde2988. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GB6LT2400652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12aaa79cd56251863db675f1ab7458ef2457b506df874d8a4df4cb8045a011a7. 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/GB6LT2400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446a8e54b83d0bc699cae8af7e3820ff494705cf8d0635539ef20ba1de7bf370. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GB6LT2400614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa1fd393ef34841745fe1a191b7ab94437c80580fbdb6acfe55b818a74895ce. 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/GB6LT2400653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc960686f421b89bf6b53c4b559bc8552d2961f8c4b0a02a4a0f508ac92da95ee. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GB6LT2400654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb615bdfc15979845b3a5fdd89543794f1edf0d6f4c208fe6aa7ae71073d68ed2. 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/GB6LT2400655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c7a55026cf97145619060fb164232492635ff72b704f2739c737bf8d83d042. 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/GB6LT2400656.
Blue Landscapes III: Frontiers (Music from a Quieter Place)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e06f831b43f915d7d2e67489b52f2c67373b204ff89b071a19925d5ab6c6b2e. 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/GB6LT1900265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ee436e2cc47507716cdf1926450300b91cf327b847e5f03dbf10bf6c96cf93. 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/GB6LT1900266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e7218797f0823db396b85313ba0cd3e71a80301f986f7ddc589b297c5e5949. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GB6LT1900267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57dc4cb891786f55c2485287b6449c6a01ced281b6336edd07344951cc783f4. 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/GB6LT1900268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb5288e74c07696d910b8871046f825cdd8c2750797163fb6fdb6ea1f80bd5a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GB6LT1900269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9476a5fb83b46448fc0c0c7b3a63f2abbeb954ac8cb412ff8653f6a630e5ac. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GB6LT1900270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedba0342e541fcb52a514d8cda9997b9c759cbed18f49bb7e3ab48b5557a89b4. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/GB6LT1900271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebb223301a0439963e0d84f2f0938cd1cee6cc69c4d66f70b504d1748fce3da. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GB6LT1900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6587d29c208eb034c600c0a845135fdc6f46caf8ab64aafd603c71b05ea54f. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/GB6LT1900273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e392e02c8601ad248a714bded0f8b32dea23118b776282af56996ffaaea104. 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/GB6LT1900274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba31f3ba3a4c2755edbae9dd308d4c967c85f79d0cde73a51b551876c021dfbc. 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/GB6LT1900275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a69bcc3469d569a0b80edf3f2232150540c0ade84646b57a5bfd7e4c230f64. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GB6LT1900276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f06e59d71764fa2081d6e1b842a2448cb5caf66a2a3198b6188e35fa56569f. 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/GB6LT1900277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f2baaec2baa5603b81353d0d4b44ae609230e3f91ff0d34346bc671d670f13. 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/GB6LT1900278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbe2e509cafac4f0d68e42b855f6d07ed83dd844ca36b28f8fce12162cb1305. 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/GB6LT1900279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c06645151c4640f9f332f1e2493f8ed268c076067cf0fa2a69e6a5c36a9f85. 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/USDY41610401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb928e7c6886f96df65f697ab57dcbbb93407b463523be86e61a96bed8ef22cf6. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USDY41610403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab4ca982d0466de984aa3a931ad98e56d7b6cf388121d5ff1b32d704844bd95. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USDY41610408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2da03480ad11a8144f60281bf20fa8d21c5f323d296ff7c0a816635ad6d9c5. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/USDY41610410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7379351bc4b0bf9c12d2cc37cd5f5c8b2e921a864ea9fb247cd815a0bb57029e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USDY41610411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50c27c4d30c7890eb34447d2dcd2ceffd2b47940ef22963ed5a261e6e2ca962. 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/USDY41610414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa614acfeb850a2263b20253d54f06a0d4233c9b29eee8cb2ff6f29dde09894b. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USDY41610415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446a8e54b83d0bc699cae8af7e3820ff494705cf8d0635539ef20ba1de7bf370. 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/GB6LT2400614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd108047ea4d9868ae58f29c4f7d25fe1db64b6e94ddf31da9b75534dce97847f. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GB6LT2400050.
Blue Landscapes: The Seas (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc61ddd293bdf3f1fd0cecbb4523c7b91298bbd9972ead6841440a6e6ba34ce9. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZQAY2180826.