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 0xa2b4149f47b8739f6cabc3115b4f30021735f164e79bef52b393ffc5bbe98671. 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/ebde3e7b-e61c-42ce-b168-4c1b21f13830.json and https://artists.proofprofile.net/proofs/artist/ebde3e7b-e61c-42ce-b168-4c1b21f13830.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 0xd82564d40505d5c8bd82c0b77a9b83ed5675289750e06511817d3566b02d4686. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QMFMF2393562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6cfc3f2113eaebbc85d04ced294a58bd497c4fd1eed555d6069e647b8d9093. 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/TCAGI2291319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff65e6fd50fe1c35ad1166983d422b289d6717b8019c5bffeb18d27f9739141. 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/ZZOPM2236101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ad5f909e1b6e291ff3b3eabaabc85af6ff23640c85db502db9802225ae7676. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMPAQ2100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1a4993364e8ca78bc062ad23d25fc6577b4a77bd0d638a8c777846b96c2d2e. 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/JMA272008916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc713e807ac434ec304d1354cea4342c5d326f57dffe61b73e4cffb52e37b6066. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/JMA272008915.
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 0x20d95fbe1949ced8adb032556f1164c162fe85ad145f608c9f883f293631e075. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JMA271905541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93837cc230055abbb3419db95d16dd04aae4568310a6d28a8497db964a4de41. 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/JMA271905124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6579a26ce5979c822de3de9146476f0c5a86be78608e0618c45edc0b115ccf60. 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/QZHZ42091117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c10a8cd38efcbe8fcf679c88e52fb37ff72c532a414e2363c07a4cd4c167f6c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JMA271902783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30095a07e5508dd23564748a44ab448c8fd9c1a54082e43a25bcc37cc49873b5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JMA271800587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc2720c261eba76d5b5cba56876270b2f74b0c70f4b8256d661c7b856c900a8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JMA271705648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc32ab45c011d1e6c9d8ce2b47ae890e1664dd552571c9c24fe081a3a498847. 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/USQY51796472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe134899b56cfe0051bc3c720c4bddcaa1b6bb72dfbe1843effa8fc1318f96bc1. 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/JMA271705417.
Know How fi Dress (Produced by ZJ Chrome)
Dancehall Tide Riddim (Produced by ZJ Chrome)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e10cc21a66bb1c23c831c9f608fc53efde36a8651eb83eecbd73a3e1a7f5cbd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USQY51790867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f686daf375592231fe7116e18952d21913fecbff663a207a6d7982c97e640b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USQY51790870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e08e083c2092246fb249aa44ea7c422734456cea7e73669633398ade0773570. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USQY51756050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6e881499418840315a60801623c6accb35b6138e6c709495e1b9b263e2dc86. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMPAQ1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d74ffe435819c2fe725971a92480d8557a950a730f6d7566885b0007de10211. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USQY51618443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c6b5dc3a744414dab08c834a8a5e629c508134e10749d94bdd69530b207596. 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/USQY51618444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83a10472b188e3502ea23dfbdca82ef1aefd7f9ffc659ce12945caed7cf3e3d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USQY51618445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efd9d32158063b674fbd168f078fc7179664a80e02449881d3eaf34647f3eeb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USQY51618448.