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 0x920fdc56e90c65a18a105fdfb1d1ae1030a2ae5a360649e142c6df59aaeb99e0. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c3600a7-f582-436f-b8d6-82b9503ad298.json and https://artists.proofprofile.net/proofs/artist/5c3600a7-f582-436f-b8d6-82b9503ad298.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 0xbc4b71d1ef2857e6c0ee0fe69f73d017106865c2d086423317c824edb171ddd7. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/QZTB92236698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c261da762c05c98cf969e9b38e40392f89b4a7422d83713b622481f427309f1. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZTB92236699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935259f8024144a8d4121286cd36913fb8b46c6990069ebd77ff3440475063bb. 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/QZTB92236700.
Muhammad Rasool Allah & Bird Sounds (Islamic Sleep Meditation Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fda5014f75dfe3f4e860f50859c610b8b6911b6fcef9991956386ed92f4374. 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/QZES62393993.
Hu Zikir Chant (Islamic Sleep Meditation Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ac81766bf4548940431c9683c002639a844981aca300e58ebcd2c4177c1ff0. 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/QZES62393995.
Allah Hu & Ocean Sound (Islamic Sleep Meditation Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ee1489790fef4717d479f086afcb87f3e4e9bafc1811cf34d4d588aa4c6ed6. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZES62393996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b801f0420dc466fd61a637e0b32749322e90ca7599679f4c0869ddefbc2c30. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZHN42448477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75af71ec882bcff68648be755c30fdd9cf1edaab1cf792e2f8f7c2e723cceb10. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QZWFP2420414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445efcc507b95eb54c89a50ccfe5dbeced47feea0e27fb7bad1650886ef486a4. 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/QZZ7P2409006.
Calm Islam: The Complete Islamic Music Collection, Vol. 1 (Remastered)