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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 0xc02d2bf2e558c5475720d9f0363e1b749e331279c3ca7936078abea2f90eb76b. 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/0bd3eaa0-ca72-461d-85c9-303cbe1d8edd.json and https://artists.proofprofile.net/proofs/artist/0bd3eaa0-ca72-461d-85c9-303cbe1d8edd.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 0xfdc465de05380c7ddabb5fd99f6a11aa21987f4571572f045f7bd0fe71f3a594. 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/FR6V80000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349d2641df0201e98e6529581cf90c0192947342b93691af2218933f09fdd00a. 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/FR6V80000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97abd1abd3c70acac2e99128215e42009f40a8f17ba80e07762be0f419c2b4d6. 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/FR6V80000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32622921c924f965d93df47c50f9d86ae09126ef3dca5682a1789d7b79e752ee. 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/FR6V80000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55403386c11ac932c84813bbbdd088b78f765bbef05368ecb1f089d188b08a74. 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/FR6V80000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c9d365b0b9cd249a60c3990ff7c6de486c7f1a1f97989a45e5ef8ff3cb9df9. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR6V80000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf3dc07dcde9040d40b107bcb08e5a86d31aa0f318e1e130808d7aafcd0468c. 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/FR6V80000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25c8b7d94963211637920f1edf46a0bbc220f338f8a1fa7d783871e22756bab. 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/FR6V89700216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7701e6117fcef69588b76a16845e7cccae9cedce130b5f4d14524e1e5fb0ef4c. 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/FR6V89200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f425e5b969fb9f7b704c5cc1c965684a109f0fd3e4361aedb711b4353f9f279. 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/FR6V89200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c89439423330ee8ed4e9798d99754bfdc7665605d647524e8a537c8a444d315. 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/FR6V89200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a0eecfd44a8758cc2bc48f4bd19ed98cb1576b3bde7c5d53cd8415d48bceee. 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/FR6V89200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3520589392eb26ed91538308def0e8c9d71b3ecdfc1817f7c664743ebc24533. 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/FR6V89200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd66660ab3ebc0bc2dd62b2d2d00ab1a3d63a4cc9280192b1080c804eb2162d1. 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/FR6V89200098.
A Perfect Vision Of The Rising Northland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40095d80e0c2b274cfc76f928e88ef9e72fdb851dd1e484862f587a8951349a2. 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/FR6V89200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba144f2f36577ea9ff0662dbbd3da9b850d6f9a560f8b73068506f57decc4c45. 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/FR6V89300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9235011fb2c321365b432ebb0b576062221a6834ee3a052b02740c95f87981fc. 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/FR6V89300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec85386a6a89183504d140e0e402cdf4e4736e41f205d6ed2492da5c531f3968. 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/FR6V89300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea844b9fa451f8291b197c4e0d2ef7e2253ce6d6bfa7ddd13962a49b2d3891f2. 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/FR6V89300085.
Storming Through Red Clouds And Holocaust Winds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aaa82cafcde9c64f662642889c0149ba28defa585bff82076ec41c9ff9afc54. 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/FR6V89300086.
Eternal Yers On The Path To The Cemetary Gates
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57146367339a5dbeb05648c35d3681be726fb36b1e5d59cee33b4213c82fdd76. 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/FR6V89300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f5a7a23ff780afc65d2449d9b6b5aeb7a826ddf3ae9a734c959a5f2c8f3fc3. 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/FR6V89300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ade454091f80dec76c57f04a1a39799af022f0bf0d8ff4315488b0a609111ba. 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/FR6V89300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b01a17de58295d33fa1f504c96463064d6e5a78d07475e0f766bc0f7ce42f5a. 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/FR6V89900073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373cc1e7f0e04cd2be3db8fd19bd979542ee64253402d976629105bacbf7cbbe. 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/FR6V89900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b88631b26a764b55f3e6974c15742a7dd444b220d7af9f500a750d670efbf7. 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/FR6V89900075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9cd8bece2244c23be7ecc95ae98170275b9e1d735cd64745dcaf6812409277. 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/FR6V89900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc885845bdae0a0787ef0e5766275daa656a5def1fc940cc996ff558997799aba. 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/FR6V89900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3148180262b28903e5c96e40ff1e961180afef479b125e00e96eceb035028579. 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/FR6V89900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfc204f23df9d0178da3af53544b7bb734689facc742607248a5ced6e146b8a. 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/FR6V89500197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea180204afb19c1a793af25790a1a150fd5f7bb5756cea8f5069bd25dd6f591. 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/FR6V89500198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d88fe3e55666bb64ab4911b5904b97af2fc519c1cb43192a81b6ea7ef32226. 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/FR6V89500199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0f0a9c453f80006483654e6dbd293f91bcf2426f238cfb0dc328540736216a. 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/FR6V89500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477ae093cce247f7ed4a89fff275ec21b447750ff06e8b1133730ee8c9f008ed. 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/FR6V89500212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62dac6781df6bf69f734fe4d48cc8375a181474cd512627db9ad0af07066c40. 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/FR6V89500213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1782734ba8a3d5f21ec8a6525e7dbce29fb123652656215792a42c89aab815. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR6V89500214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c889889e432713c2b97f170ac970d790c26a933ccce41d0ea58359f153ab9c2. 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/FR6V89500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a47df9a9cf50895e08cfdaaced8991bce81947410b84d2e8d23410546b4674. 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/FR6V89500216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfad2b9a2027e55ae5c08b280b35ee37fbf0aa522763102ba8b10f35745beb1. 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/FR6V89500217.