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 0xa2a9988ec78ba0360f2b5281555336d9b85abef923b2adfc3e4bfbdb7ec9acef. 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/cd46eb6a-74ef-4eae-a29a-310ad935ea47.json and https://artists.proofprofile.net/proofs/artist/cd46eb6a-74ef-4eae-a29a-310ad935ea47.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 0xc30b5b36dbeddfc9dc8f9ee03f7001086ecb64d49f53c279dd307c6aa7bdbca6. 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/GBKPL2150049.
Matter of Time - Lonely in the Rain Remix
Matter of Time (Lonely In The Rain Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf080e4f6ef98d9b27c2fb1760284f6998a17cce28630901e64d33b80da18f540. 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/QMFME2208973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf943f9e58646510f535e09dc21c6d01eea3d23d720fd73eafda2f1e519a9d17d. 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/QMDA62291642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30b5b36dbeddfc9dc8f9ee03f7001086ecb64d49f53c279dd307c6aa7bdbca6. 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/GBKPL2150049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30b5b36dbeddfc9dc8f9ee03f7001086ecb64d49f53c279dd307c6aa7bdbca6. 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/GBKPL2150049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30b5b36dbeddfc9dc8f9ee03f7001086ecb64d49f53c279dd307c6aa7bdbca6. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBKPL2150049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d18426561d6525d3bcc886228596e4ec161f712b45ee35174969153741d3d9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFMF2202628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf080e4f6ef98d9b27c2fb1760284f6998a17cce28630901e64d33b80da18f540. 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/QMFME2208973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf943f9e58646510f535e09dc21c6d01eea3d23d720fd73eafda2f1e519a9d17d. 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/QMDA62291642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48b53f53a7d339920df19ba076af0d600ec7185e5e1e87705e084eabcb7e729. 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/QMFME2249123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91aa70a689b88c76abb61705c5d231f48713f4f1e4746efb2b6047d399a3737. 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/QMFMF2202609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48b53f53a7d339920df19ba076af0d600ec7185e5e1e87705e084eabcb7e729. 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/QMFME2249123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30b5b36dbeddfc9dc8f9ee03f7001086ecb64d49f53c279dd307c6aa7bdbca6. 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/GBKPL2150049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30b5b36dbeddfc9dc8f9ee03f7001086ecb64d49f53c279dd307c6aa7bdbca6. 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/GBKPL2150049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30b5b36dbeddfc9dc8f9ee03f7001086ecb64d49f53c279dd307c6aa7bdbca6. 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/GBKPL2150049.