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 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 0xb97e7e134fea626644ad0e56f64f4b3e457bda1df6b94d1c195ca58970cbd58a. 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/cfbd65f7-2b98-42b5-9653-ca9c494fce7e.json and https://artists.proofprofile.net/proofs/artist/cfbd65f7-2b98-42b5-9653-ca9c494fce7e.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 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 0x8472ae14e53f20265469252f1d4b8e4621801b87ed073056778e17fe4c714cdf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/GBAJE6800179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7e4ed096897ab150a256100c3944bb0d31cb6e45dcf40b14b281a2042d9f05. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/GBAJE6700416.
Greetings from the Pioneers (Expanded Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92a85c541c6c977f00651d5be8f3440c3517bdd3f5acffbc98beefc373c5914. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBUM71026626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf4aa9dfc4fe31fd5d8abb316482d5b06c47f3761b78b7232c8c1fb8278d57f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBUM71026627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7890c08ff8d7b573e8ceb9d9705327f8eca207e9f71836416ea8c73e97b4d7e8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBAJE0502820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc369c8d4c9248aa466e89cf1f897df374053c62f1d7271d8158a08c570a2f6. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/GBAJE7800198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a60b275638d42826da49de911d26605e455e4612465b6bb3e0b01525cffb1ce. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBUM71026630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3178d3aadd4cf9c51db50afcb8424e0a91c1821da8913e2f7ee78e363a7f5c42. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBAJE6900954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e87a016d8ecedbdcdf8173848d8b0e7f1cd47b479228ccd867e79e673d45b3e. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GBAJE7000160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0420b71183d21d27c41b5cb00e48a0c4fb0a14f248afdb785d897fe8723fd4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM22062315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff44fc55dd73a04f02936aacc0a52aadd003e9b596a49a92ff736eb7b66bd618. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USHM22062316.
Let Your Yeah Be Yeah: Anthology 1966-1986
Give and Take - The Best of The Pioneers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490ec4c42582722c195240b10e7a298247ca80f9639261f7a7bacabb8ca645c6. 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/GBAJE0610844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eaa533df68ec6a64774c07fa3db6d60e59e7ab7fec736cea576ca51df7340b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBUM70911255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1563d3942dc17c2e44d262473bc05dfc191e05d6f1a31a2cd3ff10546feeb8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBAJE0607395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130ddc2411c963191a72d60a87311a5f97f8702db0a97b8c3ee754e8b8ae2396. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBAJE6800191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf526f89ccae81c852ff552aea4c1e5f00c60443f1fbde05dcc2976c9114223e. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBAJE7800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd1c51983f8728529236bc73ec0bf6dcd5dc065cd2c871d12a0495e5b508478. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBAJE6800186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6941e74fd9b0ffff4ce0d0306cbad06787815898ee8c28ef11b6b4d1a93aeec6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBUM70911307.
I Need Your Sweet Inspiration (Justin Robertson Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbbf15b311658875750c1e59a40943f25c01b8a9838d33cc6b5d1ca7558d468. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/GBQXA1113102.
Give and Take - The Best of the Pioneers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5494a498f6e5f30319652a4f9cfaed6530c785699c125bf7ac9633f77e0502c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBAJE7200675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe775868b0eb6d65b5f809f0be431b61db4bb9f030cb310fa1168ce047007dc2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBAJE7300414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4d186831e73abb8ef5332c8c700860ae23aa1616b3205258349a0d4364206d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/GBAJE7400497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6763719c4031ed4a595957d262c6bd0bb51a092589ee1cd9c8d9e47f4eb0f692. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBAJE7200217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd8b28959dbc78bbfa5d36e696fb406752f5f8f96d49ebb06daad47dbfdbc7e. 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/GB5KW1602642.
Long Shot Kick de Bucket (Reggae Roast x The Nextmen Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca923e1bb8577edc63a4a703d7ffafe49983039984ad87bc6ce370afe476df97. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCAHB2333352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc610a44905fe6392030cf47c41cbf34ff95168c47ba0179e47f61168b20fbc2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAHB2333380.
Barry Myers Presents Scratchy Sounds (Ska, Dub, Roots & Reggae Nuggets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363c4baaf4b676d2827c3156052feede919d1ea06c59350e2493e3047adb6ed1. 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/GBAJE7001084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a3edf7f22272db777da0e9aa85c95ba8b113b3d7ae4435332dee9136bad63c. 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/GBQXA1113100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5367ad6422749883f31ed3d252af2832f92a9539e8da8b22394a8cf05ad7c941. 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/GBQRF0834542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b1032166732e73e1ff53c597990c0c5ee88556519247ade8b334aa49431311. 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/USBT21610024.