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 0xf8351b29dc35feebd6075772280351bef4ab98c576562c69ba3d4370e0a48070. 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/f5be3443-6d72-47b5-a812-8e724dfd6b12.json and https://artists.proofprofile.net/proofs/artist/f5be3443-6d72-47b5-a812-8e724dfd6b12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
3jabha instagram (Dj Manou de Laghouat Rmx)
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 0xd25ee61eea4b5e108a97a59b74254bbd6bc117132bc678d334f8208658650c1e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM4TX1999020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0816d1232da145022b133d4e90906c07b61067af77568da7d7fd416e6f426e32. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:43:56Z), 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/QM6MZ1902842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8442bef351261998d4a8cc5b3d0146d416de8cab19cbb37cc59b90c29ec77e4f. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QM4TX1979010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f470460ea42300198368cd446429516796c264c5499a7734a128200a1f36715. 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/GBMA22027996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee327b39983ba944ee609b759eb8e0ed40681a1c7ea84905c9a84e6fef25cb5d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/LBA132100709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b9f21c869403a89eb0e8c5aeb7c8855a8d7b0c828c430ad1db3682a99f73af. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/LBA132300350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f36d5b2fb5b7d2eac8e07ac19b070738425538203f5d51a13040e91b2437692. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/LBA132300902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c281fd57793ec12923b8a9880eed9d57b6666953750781dd5ecffe13fddbadf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/LBA132300920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c7f6db3e8bf529e714e493f76a2405a78e54af3767f302be02d3faed3cd1ac. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:51:23Z), 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/LBA132400567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019743e0223ace2d8ae9ff7398672494a55590a46249511bc501c13e0e6533f9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:57:05Z), 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/LBA132401191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665ce09fa445bd2006e7a1ccf998c1a7f1fd921e9da9b4cca9f1fa46287ababe. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/LBA132500132.