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 0x3717739dc47d5634c1a1813476c5e29741a367eddcd93409d9efe8b135369f24. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d3ed9db-918e-431c-9c8b-4588d1d4550f.json and https://artists.proofprofile.net/proofs/artist/2d3ed9db-918e-431c-9c8b-4588d1d4550f.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 0x3c20168f506c0f8d74c357aa8fb9e7b4c743a60da1b50c7ff91e533ad832f303. 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/QZK6L2377510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5cf56b27a44980b2eaaa4b0a40d754f1726ef2645833647eab71ed3ff743d9. 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/QZK6L2377511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e58daea90dc1a29e7195d508df2471828428deddbfd785ab0c010d6c0b2ca5c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZK6L2377512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc39dd2d58a99a909a9fee9bcac3b4a08bc6ee708da8c4f8bde401a2458fee7. 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/QZK6L2377513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe78a69e712484b0a3e24ed0c6e0aecf34a6167b78340c0716d2966b16ddaa9. 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/QZK6L2377514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4556bc9060665532ceecacf3cc5fee37d717f4c7bb28382e070e1585d50e4c1c. 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/QZK6L2377516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc8f63e3a2fe205165027a06f66a3ff380d841a1cd6b15ab2a22b07fef31f40. 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/QZK6L2377517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9dd4da8ad0335c7c17c13c86b4693ed97c1f9fbbd89124d9af10b7cb9d8826. 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/QZK6L2377515.
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 0x960ea1a73ec5806c249fe4cb67d2cb2393907b09c147e4613d1eaa48bdab691f. 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/QZHN32320072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc407a2b02df76b84ca3dec5da630ca2f183bf3460ed60e1a9c918adf257ded. 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/DEVV92401214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99af785b98a2f42c8afcb7c3b3fb238e308d342bd789fe04270cb213c3f68fa. 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/DEVV92401202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c9c9f1c38ec153ece20d9060fe4a1feb67a021edad2a1df4c0121cfaf19b70. 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/DEVV92401211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301552ab955104a6d27240ccfd2475e45a9637b158758c30fbc2d4e70abd8cdd. 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/DEVV92401206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96948a15be9ef7f928dedaaf51fd1740fa7cfac82c2b344b0be56ef72a140f68. 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/DEVV92401216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8854027d9115cc77efda167d31a26b1e6c16a997c15d85f1f37774227bd2f2. 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/DEH742441236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6de9758627a75e6c80e9779ab78cc54b9212a238c141f394070a74a77ad8e1. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/DEH742441235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4f81e21f20bca2bdbdd8cf76270fb24d9b3abaf0b1b3a1eb2821d3420314e2. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEH742441238.
All My friends Still Listen To Techno - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef18e494f58e6b125d2074aa934d2cd2e6cca316a8e3d0fc7e58db75bd39b2d. 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/NLCK42220354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afe0d4bcb87c145d9cfa0482b68f73b1836d3ed2763ee9c05a6604d86f57458. 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/NLCK42220355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca48808e6273d23c3cd941cc05f0156d706785a77536e05386ab75d3796fa089. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/NLCK42220356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dda02293d72c0ea9d8fe0fc08534f02fec8844e41887bc6b42a409d387c85e6. 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/NLCK42220358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435e10c152f524b1e03cd789550a23259fdba5e4f07c2375ff3288f32518d9a2. 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/NLCK42220359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51622df146cfd4fadb66a9816b2b2679e3d05765e363997e5586114859d669d. 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/NLCK42500851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7180fa51220ad0722d0483a141391a2dc1a52e342c8f10933354e8f5653df0a5. 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/NLCK42500855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf305ac2e6fdb70fc2820ecd5cb84e7551f84352372fa1582ce50642bf2c1ebc7. 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/DEH742433668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bac040fb792326556e6597ca0974924f642f5f185796202e062a73657644bfc. 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/DEH742433670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6b274314b59912f602340fc0db3a4b4f3c18e286c4767238e8370ab12c92df. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DEH742433671.
Isarnian Bloodlines D_B [Counterfuture Hi-Shock]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1977426b57444ef53ab2790524953fbaaca3a2e0217ccc71ca5f5689bc931d3. 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/NLCK42236042.
Khazad Records: Various Artists Vol​​​.​​​05 [KHAVA05]