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 0x9bad85d79d61b01eab5c8c056762bfd47ae414993328b0d2d2338fc92fe6bf07. 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/a73b2338-39e2-448e-a7ef-a657a75d4a6f.json and https://artists.proofprofile.net/proofs/artist/a73b2338-39e2-448e-a7ef-a657a75d4a6f.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 0xdeff3f5eda511093b75a6418b9e252901262dd2a0c4ec58506a6dcb67da865d5. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:01:00Z), 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/GBKQU2003913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b9d7da70ed44acc3b2d70b5c4e1f7ec60b07740ff651f59f800627decb9096. 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/UKWRY2000023.
Humans (feat. Lyrik Shoxen and KJM Cornetist)
Humans (feat. Lyrik Shoxen and KJM Cornetist) - Black Motion Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065294b689dc6e8708c0be78a84d8033a4a904c1eefe1aa199c659c930c6f79b. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:01:36Z), 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/ZA56E2101543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed36e7e4d9985716bc82712286d72d1b70437b6cbafcafd7b705400f0d0543ed. 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/UKWRY2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1376f455f049359caa3628a4084f9ea4d98cea717f07a8f29f41d57392429a6. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/UKWRY2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f924328551618dda1c218955acc52ddf04fdfef6d9d64dbde9005e39001f82b. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:45:28Z), 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/ZA56E2200535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b332ab5fba9f31d8eb90331bfc71c92943e4578077f471fcecfb838720b5de3. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/GBCPZ2423136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04a2811ee7c3bd6190a980e3d0e7def04726bd3712f2e497e56ca86efce14ba. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:42:18Z), 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/GBCPZ2423138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882144f38e48b3c9b81999c0615af6b6a2803b9243887c8a7f9786b774c57b9e. 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/ZAH962400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e15d5ff348a2ed558aa5543f5ce3e0e0a2f2f746d064f2a51995a335e00737. 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/ZAH962400044.
Call Me Back (Da Africa Deep and &friends Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c505c84a05463ba095dde16a5f48c07206c901fb995cb0a600f6e22909e46d5. 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/FRX452038243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8149bbb731d6a0d3a5becef5fdcbda891139b646a0d811beb419ce27aa8bee57. 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/PT1GK2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a6ff9725556f5a80b865f73e040995489ed08d11274e200f9d23497060fad7. 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/US23A1565682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea5cb8385202f07d5ad4df74fbd6aebc3d56f5ff712f97524ece7db0452ac5f. 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/QM24S2107617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d30ef2c332d1cd996f8a24ee898f3090290c553928bf9b650d69e450e01b4d. 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/DEY472274490.