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 0x97be4214d19eb22cbb7943eaa4005a78cf16a77ce11be8db9fa8e4a189225d98. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d98e7e2-a2ed-4e0f-b6dc-a171873f3323.json and https://artists.proofprofile.net/proofs/artist/9d98e7e2-a2ed-4e0f-b6dc-a171873f3323.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 0xe37584136e9eba8855b6642099f4f9306309472a304f87ec73d486be0e02a7dd. 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/FRX872371297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bbf0857ba767b7d56ad86514bf372a2b1f821988a1f6a84bf17569de7b05b1. 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/GB5KW2100566.
Sad Party (feat. Haile & Ivorian Doll) [Acoustic]
Actual Life 3 (January 1 - September 9 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235ae3a28e30ffea44b14a871950196e8103274b5726e6b48e61f4c7c8b7414c. 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/GBAHS2201420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a9374b9ac441d393c99faddb22695da5d8584c09730bb1dd15e5a4b42d2d9f. 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/GBUM71901780.
One More Night (feat. Wretch 32, WSTRN & Kamille)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3132a34387eb8acbdc0186f9a49eee98af0c91719eddb344d7d9ac4ab22f6dd6. 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/GBAYE1900591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e34df268063e59d167e2d72abe74860a6d414087b423c1a7bf11bd472e5ed7f. 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/GBHMU1800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4522efdb68c40f94463d2ac3cb07fd5d96e63be9881fc18e59d255d69d63ea99. 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/GBUM71801629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e34df268063e59d167e2d72abe74860a6d414087b423c1a7bf11bd472e5ed7f. 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/GBHMU1800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d06bb204012e65c833e6254ee1e2f7125ca604e10de476c048b59031dd7fdf3. 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/CYA112000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cd0a677ebdca57686a4d0cf80b7adf8e2aac84d213e4743fb683e5b6759c39. 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/CYA112000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34a79c2574c5b2500ad0d4e9e973cb4009e85b0569b77a416291af2d452b65c. 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/GBUM71902654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf93fd653daac415122c44c05e0d6ab1ce54e3b90c98f3a15fc5832ccb074d3. 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/GB5KW1904313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4222d479f2bac9054acad549b19b992d89412bedb02cc165b259b2514d82e01e. 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/GB5KW2102361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be7ce3f6cb5040c982c96c3ab5c820a9cd6ea001828149ca57c4d02c7e92879. 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/GB5KW2003710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52009ba47e40c45ac15986f0435383d11939101946da66d72f323b5589cc1fc. 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/FRX282363555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37584136e9eba8855b6642099f4f9306309472a304f87ec73d486be0e02a7dd. 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/FRX872371297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe1eef68c5eb2f68effaa05890bbf67642de39f53eabfe2807fa72dcf1df224. 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/DGA072389226.