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 0xe466c0d3b80694e2d533d37b6d27af68feadc07486e6c557083908cfadd01151. 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/e52b80b1-b692-4a81-92ff-6771fa309715.json and https://artists.proofprofile.net/proofs/artist/e52b80b1-b692-4a81-92ff-6771fa309715.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ax Kurdistan/Dimeşin/Helî Can/Ez Xelef im/Sipan Xelatê/Serî Hilda/Mizgîna Lêheng (Live Tv - Session)
Ax Kurdistan/Dimeşin/Helî Can/Ez Xelef im/Sipan Xelatê/Serî Hilda/Mizgîna Lêheng - Live Tv - Session
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 0x73ed1630e0c149076593f8a0a8d79536f8009b46c688c9fda5c0b1d1079d830d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX762566834.
Dengê Çiya (Performansên Zindî / Live Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe066c9b2f51b5002edab6ec4b9e0fa5785cec5ba4f207e0b4f8572db4f40eaa8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DGA0S2404694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9908a9598bc29472fde7bbe64bc714898d701b9f3a73e280624bfe2b77939e30. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA0S2404697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2487af7f34f735acbce65778e084501d9f4cd2f91b336a607fbe1e467af0aff. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/DGA0S2404698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316b6e0c6990ee6db395c71ce8fab97156fb05767b27ce2111ea531196c4ce69. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DGA0S2404699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4d31221eb48525a2be7584a0d711f06bec8644c542b84b5631566e3c220c4d. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/DGA0S2404700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1affc7e472cff36a78771487b022734968c2dd5d7e28360bbe2c9737415edb77. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DGA0S2404703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f8265aca4727b6c4d042427941f97c87d8a725ea53b1f5ad39e052c7bad642. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DGA0S2404706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bae04acb6a0428f367b2d8ffa4854adb6d563d37b8cfeb872e6f75f82d86bfe. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DGA0S2404711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10459909db86a16290c673eeceb981ce74b2af6b490f1f418a68cc883aeb300. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DGA0S2404714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74f5c9e2109b0f113d8c4fd647495e5df2ee2ed5bd8a0d2cc9af23851aa3e17. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR0511905056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3520fb07e3db1146cdd88a2ff87b66ee42fcabbcf4193d64c115ad0de75dd1. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/TR0511905057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc445d5e6ce10f7660d84aaa62382729c753628f2ee3304905544a6219aadbae8. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZK6J2226227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653fe8c0696a901f005b5098f8c89069cc226567d123df6e0c22c569ba46f08b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6J2253462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff2f154014ae42614af62fb48f2ddda0529b7a7814cdfd36f6c48674df03cd5. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZPLS2234069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730616754e9383acbcb668c915fb6ad42f92a9615a14934240ccf03060c9fba1. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZPLS2228391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb713cc3356a36b415587c8deb21febf548350d66943ffc7d0af8a880d32e953a. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZPLS2234070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58c202c83e71ff9c9751274343720efccc2109e75b839b7142d95457b42287c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX762405063.