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 0x08c977142e8b180a1c80b16dd49ac38b2cd435e0c17bf69a72d870b29fecf005. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8e4e8ff-e63a-4173-b5f5-897694bf1b3a.json and https://artists.proofprofile.net/proofs/artist/d8e4e8ff-e63a-4173-b5f5-897694bf1b3a.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 0xaeee980ed594c7cc5c1dbf723eddba238c0af2b0c09c29b5dfbc2f3d87713761. 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/GBCCH9700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8473b84385124c4852c9f607787a06f715e7cd8c84de9b0e21451dd7c919b30. 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/GBCCH9900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9b95b9b9ff701c4bed5f01845b0bc576b5e06400433db79fe259d6350b8bbc. 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/GBCCH9700096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049fb1167d25148dc80b878c02dd0d200f4ca432eff9a96b69f30557a7380595. 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/GBCCH9600297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e985d94900fa87f5dd6b7b6c38954ff6283cf3ac42e17f04a25f80d88ba61f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBCCH0000413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec32a393a3625ce7bcf76859dc4e50c2cfc7201c001714647ca88d9db481906. 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/GBCCH9600123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903e1a0b71e261d009a9a3bba0a94c833564922447c20f486995bc2fbee5a667. 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/GBCCH9600124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb13f24ed00e9a6046934a03e3a747d21819b4074438ebb38b11d2f694c3252. 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/GBCCH9700310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0b4c23ddc438f9cc7cd48bed367543d12cffab99d56c0fd06f5b1d03935072. 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/GBCCH9900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13052088efb7583ebc0a893ead3a555f07a9a065f54e52de997ae84eab77efaf. 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/GBCCH0000363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd259efb35d7dd4f7029c72debfb3fd16e71bf16009decab59458fcf8b69bbd54. 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/CHA531300028.
Logical Progression - Continuous Vocal Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e1afc586582f4634c7992bf006523e210483f2ea31d070125186ac8a3aa235. 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/CHA531300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d5cb810db2083d71a702291b42a7593cc37b180484f97683532375e8fcf91d. 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/GBPVL0600025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e66ce0ae5aea6d3dfd6137c1428284ea56a634afd61d8b428761be8181763fa. 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/GBLSB0500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394afd9c165ec25c05d21f83453b6e83b8f07eae4018a805f993f2adc665fc65. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBAGN9700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291fde4eda42f578754b1acedf8806a7856beada7a6bf2e85271a9a33cf90067. 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/GBAGN9700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26579a6221cdb1cac22a91777d6c11986d38732594fd26c5df5619c698cf353. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBAGN9700004.
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
Can't You See (Funky Technicians Remix) / Beings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda996bf0ba21bdf4050ca06585cad6835271dfd9f7c6422613e8e87f998f0af6. 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/GBAGN9600040.
Sanctuary (Re-Mastered Mix) / Sanctuary (Funky Technicians Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291fde4eda42f578754b1acedf8806a7856beada7a6bf2e85271a9a33cf90067. 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/GBAGN9700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19779ada616dfbcf737d5aa8075511dcc1d2fe9a76a07f2b55b39c58e2bcfd27. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBHYE0600044.
Sanctuary (Edit) / Sanctuary (Ken Ishii Remix) / Sanctuary (Funky Technicians Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f233ee0ec5213075ac970fdb23b75b1603630418c196953887673b5f9a77361. 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/GBAGN9700078.