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 0xae523432c84d18f1b6ad7543e551b75035d25994ddcbe981de927837c907a6b8. 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/762a287e-d56d-414c-9e99-56b4e071528b.json and https://artists.proofprofile.net/proofs/artist/762a287e-d56d-414c-9e99-56b4e071528b.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 0xa9178a281e1286e405b6313edaccfe32fc67d8067b74aa8dc62c1d55afef88f5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/UKH4D1800036.
Djougou Yah (feat. Ahmed Sosso) - Perc Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2252206c7d55d79e7d10df26be3617f87166dad209dd26abfad68c8d6104000e. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:07:23Z), 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/DEM091800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13389d029a44546d0bbc00a9cceb7814d350f583ec5ae3fe51b49dfe64bb10c3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:30:00Z), 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/GB7NR2330201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b02672059b49a5cdf49029747ddddf6d572e0f2d3f0a560f39d1bf6e23527c. 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/GB7NR2330202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ad61fa3726d6f76cde6eb4669c9cb01c71ef0c1411dc2f6ef62e12acf3c419. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6P42468801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f384ac23c26162173b9902ab3bf05b58b4c888bbbbff029852ca4c7f375bf3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMBZ92422546.
Too Much Information - Laolu Remix [Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88492dcce0184a1b2569bac0878b34cf3f2602d76a083ec532728cce8136a4e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEEC31500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88492dcce0184a1b2569bac0878b34cf3f2602d76a083ec532728cce8136a4e. 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/DEEC31500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1a9675c8707ae0317bc95e6b94653d0ae2b9de156d21f893310d39fc3e6c67. 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/BE6F52200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd06827ff4c89d6482e683f134049b0ad184b0df1b16a533ee06b522bf6b5b1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKMS1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd06827ff4c89d6482e683f134049b0ad184b0df1b16a533ee06b522bf6b5b1. 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/GBKMS1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41899ce55883bab810917eeaea0c78fe1cfe3db6d088bbd59b1d6bcb2a31405a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBEWA2200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3617d3bd8037357d7e377df91a156788edd10292360c3bd3a9cbddec2d4af2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBEWA2200344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8732f2d4f6a908a7c589b6095f4652f875b2cb2f7ec0f876363aa55941307473. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEEC33500457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefeac0ae1a5105fd440fb85beefc04194fcb14331c64d710accd6fce2c6989a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEBE71700822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88492dcce0184a1b2569bac0878b34cf3f2602d76a083ec532728cce8136a4e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEEC31500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7549673530a88b4076f991d5a3507bfbe919f35a9a745bad1aa6c767f1b8dda5. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEM091600299.
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