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 0x4acf96ea35488060972df9d5fdbb9fbacc5b388b2009dc16007e9d9b80979f2a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/609a3df1-4858-4844-9158-c7d0a11f9110.json and https://artists.proofprofile.net/proofs/artist/609a3df1-4858-4844-9158-c7d0a11f9110.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 0xae59b893130049d793abd67809c3d332d8f1962b7534928aa35ae36068945b0f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:05:46Z), 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/QZFZ42505274.
Dawarli lgarou دورلي الڤارو (Special Version)
3inik malah عينيك ملاح (Special Version)
Ghadi nwali jarkom غادي نولي جاركم (Special Version)
Jina o jabina جينا و جبينا (Special Version)
Gololo rani nhabo(قولولو راني نحبو) [Special Version]
Trompette algérien (طرومبات جزائرية) [Special Version]
Trompette algérien (طرومبات جزائرية) - Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ea991f2c918498cce188091d84a53afa80e5666a07c92f85422f53fdc52d61. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZHN42542444.
Cheb nadir 22 jatni mchanfa جاتني مشنفا (Special Version)
Ditah gawri (ديتو ڤاوري) [Special Version]
Gasba chaoui -قصبة شاوي- (Special Version)
Gasba chawia 3 -قصبة شاوي- (Special Version)
Selat ala nbay-صلاة على النبي- (Special Version)
Gasba chawi 4 -قصبة شاوي- (Special Version)
Rahet rahet -راحت راحت - (Special Version)
Cheb kader royal Zawjoha-زوجوها- (Special Version)