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 0x3282db435fed969c8949ec264ad0e97e274d2d5f84b9e8d2917f943818dcef2b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee61d191-1c2d-479d-81c6-c33eb73b2da6.json and https://artists.proofprofile.net/proofs/artist/ee61d191-1c2d-479d-81c6-c33eb73b2da6.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 0x352e837c213e304e3c2aafc50a710d57a82de0b603ee04e5d25e2ec137888133. 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/TR0411405385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4c57ff8e5603e3acaa7e3d6256cfb11c6afc1288d7a78d62caccaea3059655. 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/TR0410801110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edeaff22e0b60a40eb341838304468012253a6755b23184c20e255c9ac9f556. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:25:35Z), 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/TR0410600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa78ad8ec64704082bb0257ac71d5e728b6da73bc07dcaea503a88965219714. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:38:25Z), 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/TR0410600026.
Ney Taksimleri / Dinle Ney'den (Enstrumental, Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ce936ab6dab1077a374fb79e8a728555198ccb9179aac14a786d57f3a9b8d1. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/TR6641000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967f303abafb10f4545cabbda2f31d687c36b6d99811193d54692116334f2df3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TR6291600547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21ec8d7fdfc5b3ed52bb8c94458ecc0a8adb84a8742511ee6851d4a3ec9c608. 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/TR6291600549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4b2909c91e335e61b942bd2cebf4a40b600f50a6565d90b01a44a89900265e. 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/TR6641900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf55c03fbb4e67272b3b657e8fc5b77fbff5098b1e3cb1ebdf5bb785712e39c4. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:00:46Z), 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/TR0411404113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60e44fe44a0f4c36cbc419b98fde3a1560ac07d45ffe34fb93754d47089ea01. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:37:16Z), 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/TR0411404115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ee5b3c381f864d75e49f99aa511d2742788f35fe9b7594fc6bfaa6431f0b7b. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/TRCGY2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246e50c96d32c58df6fb47298b6b3d303fa4738f6dfb90b6c8d6d47972dfa541. 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/TRCGY2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c778e21c93b41963b7ee7e1ab4e04915b80a0f12a847fc126a5610da779367. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:45:27Z), 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/TRARY2500567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa446391b8b6384b9ad59ac3f3be513d5f59d46b9bc7086d37ed2080bb67eb649. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TRCCB2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b976a6ce59243133f5cfe4b3d22d5e37fa52189a2a4987890854cb5654cbb9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TRCCB2100002.