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 0x4994600cf9b1e8015f1012f9585636961bada9002fc02c101ad2e8524d84b453. 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/20227578-1761-427b-ab37-8190f07b5355.json and https://artists.proofprofile.net/proofs/artist/20227578-1761-427b-ab37-8190f07b5355.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Miles and Monk at Newport (Mono Version) [Live]
Someday My Prince Will Come (Original Album - Remastered)
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 0x161b2f1bd576d39d3f1e16ef43be3b1befd84b514ab4615a2a05ae231f626974. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DETL61610024.
The Greatest Jazz & Blues Music of Alltime, Vol. 22
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ce1c0d9174d71fba2a6f1177e649ea91495c30b28a95a56a47b0cda1da36d3. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USBN29800327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d42501af3cd791631c0a1942db8c1b394b0aff4321ca6bec066e6da619e12d0. 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/USBN28800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe525bfd7d162deaa8ecd5c49022e9a14cc14b8cf5a225915f959aa81a2f47dbf. 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/USBN29800329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e187d551610429af9de5f09cfe52207ed99ebe865998c12011d7c541430ec39. 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/USBN20100435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0efecaad121052c996983d3341d8e541f29104f787511a7d2b50b5cdcdcb123. 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/USBN29800335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d2d228ad0ed9b0d42ac865830ecf0ed2cf11f1ec029b4f390d18a1fdd2d1c4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USBN29800325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b395e18e3205997c491d05a794065e262f5dc81d108f64e8f5026baaae499a. 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/USBN29800323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5b169cac1e59684d50d427217904cd0613e059fde9508a1cc4a2c0748f4c74. 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/USBN29800324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3bc8f5b405178b49b6ac1c646d0804583158e45cdd6711564ec7081ec8b1d. 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/USBN29800331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b227ee495f7e3aaeded8354ba2f732f82734dd0744067f0885f33b75352a7b3. 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/USBN28900217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e70c83fad789fd4c9d92a68988a4d2230543397ada0fb3ddc476e0e433f374. 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/USBN29800330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1bc527e3ceb024164329bbce3af9d8d8eb9636c83e34921bc767dd0104ba8d. 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/USBN29800332.
Chronicles - The Complete Prestige Recordings 1951-1956
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b3f3f7939a7c4ffb3aaeb031e191e1b1ad88404cb04a3d769d6c3844ad1152. 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/USFI85400023.
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 0x95bad79e1ef971c9eb0e1a554169564360b980b0acf6b883b305a79fcfd78b18. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USFI85400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc562316d443945bca0a8d6ec6a1f1a1482ec134328fb245a7ac9da312c8065. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USBN29800322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1b549adfa71e7b2ec54507dc4cadac17d183073c467addce6413daa34a7d2e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USBN29800321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c36808fa3ed75bfd557d86a3d4028e593412e31b98211b35e45151db2991a0. 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/USBN28800197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aae6335e79e2c51f91db70c9e240c841b5dfa7da381a90817c62c21bf3c4f3f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USBN20100430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0da07fca916d47ccd36c3d1bcc1edd3497b10ffb5cfd968cb486ffbe0e3f17. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USBN20100431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec391c5ddc99b667826be02fe50a99c358f8c95c832292940299be6eefb14106. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USBN29800337.