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 0xe71bd882f421208ca989be3a93d199ae0e66dbfebda68f4c489ac1e27daf19ce. 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/c6f7e443-64bb-4769-a486-0975bb0158db.json and https://artists.proofprofile.net/proofs/artist/c6f7e443-64bb-4769-a486-0975bb0158db.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 0xa6e1dae1dc534bfaac40288020cfce1a3fa0512f9370727addd6d151c4f8bca1. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZDA72253956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e1dae1dc534bfaac40288020cfce1a3fa0512f9370727addd6d151c4f8bca1. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZDA72253956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c52d500d95c2866cefffce36c45a8220baaae87584eb9412394525af398dc3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTBA2434057.
مودل (feat. 74 Original Suppa & DEE PRODUCTION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bbf59f98ada8c0aa0cc8b4131d67766ba7f679f35d4eed27dfea766505250b. 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/QZWFU2478743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d3a4f217466d1d972b7de539ededb2259e0c058d4c378875ad03df0e4acae. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/QZZ7M2416137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d3a4f217466d1d972b7de539ededb2259e0c058d4c378875ad03df0e4acae. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZZ7M2416137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b266c89748fa492de4258dae8f39d019e4ddb747d61aaf8ca5abc44a50a6dab. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZZ7S2456650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb03c30ae372357cb5938e1261fd405d68ceea2a746426466a669591cbdc8f5. 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/QZHN52534024.
أغار (feat. TheRealDinho & DEE PRODUCTION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26316e64983771be150063b0a1a3e59b2fd8e10c94fb97a0f8d7b99c4d7b8809. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZTB82504950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642f2ab91016305f23e855456cd49fa0933c5a8a3d96913d7de893a39136f5e7. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/USUYG1751616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2803f83ad552d1b32b51b74d9ee60193f189e56d379cab910ba8138060a287b8. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/USUYG1755088.
مابقى (feat. 74 Original Suppa, TheRealDinho & DEE PRODUCTION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcb4bfa8a314b68d4137e12dc430d3bc8a1909f70ab334aba6437b6b02f9a85. 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/USUYG1760402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad74e894f4c3cfc131783b9c5be949d82f12ead2f848ae74eab4e2d1caf78c32. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USUYG1762938.
مثل اول (feat. LUIGII & Turky AlAbdullah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da5fabee4c6fbfe2548da9e6f53919bd34f5dc21d356b6778159e39d98cb0f8. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/USUYG1766314.