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 0x0f370734099ff049f37060861394369e885ff1b56c39ec5661cecf7354ce8c82. 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/ffe8bb8f-cc70-48b7-b277-1b775828a9ec.json and https://artists.proofprofile.net/proofs/artist/ffe8bb8f-cc70-48b7-b277-1b775828a9ec.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 0xafd9cd954ef5823011d6475a4a64a7a52116fc7fd19186205f817b3a9145f49b. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/TR0861500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6a6c555ea90b3fd6d9e36a09021c3318ddfe923eb74e4481dc03ad29cf93b9. 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/TR0861500084.
Xanıma osmaniya ,Dızo,Kalo,Şırinê canê,Xırpani, Goşiya reza ( Kurdish Rock Mashup )
Xanıma osmaniya / Dızo / Kalo/ Şırinê canê / Xırpani / Goşiya reza (Kurdish Rock Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835b79b3019076e5b619364e506a3ebca47c59ab6100a38a965c6dc8e07d49dd. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TRBIR2000653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bd5c04bcf985193ad71143580ab6de6d797c6bcd7e45547990b6715569912e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR1152000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb1b10178b487077c3586f2298372176ac83787a445bbbb29002cf02b8293f5. 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/TR1152000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff712643a911a6b98f7b76aae9999bdd295401681b79457c743f71b430eac109. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TRBIR2100557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099f0e06bf52dc65f285d12c8268d4c35094f8ddcac074bc4d5f29f52de03371. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TRBIR2100558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bfdd8dea2593f3ac15e0cc93beca65f8fefc6efcb72e710bc59f934f2a3b7e. 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/TRBIR2100562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2b6de867396e0f91353e80575e06f838bd5721186e87af936a902c998ef6bc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TRBIR2100796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9710fca9a90ca600be577fc681b2dec5500d091d72c0f5702f3e13b13e70b0b. 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/TRBIR2201249.
Potporî: Herê Welleh / Gum Guma Defê / Yar Yar
Potporî 2: Seyranê / Telî / Berbenî / Gelawej
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c3668701b5d852da4d7f3e648375731c6f4f73909e912e118bce291cc38418. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TRBIR2301903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1bb5d4e49fb10cc944edf621b06d361370c162e1114d05220746891d4f7ad4. 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/TRBIR2401986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9e2713512e90d8e8ab701a6a3717ed8abf9f6d6102095d6609d3249b93c352. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/DGA0S2497425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305e4447321896cd4e8025238018a0b0709ef771f46d3b9cef52873289d79cea. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TRBIR2502519.