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 0xf0294190054e0fbf58d6f67d6717bf914d02568126de8cb630d097abc4dc599b. 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/53fd7189-854a-4916-b81b-f6a99b164909.json and https://artists.proofprofile.net/proofs/artist/53fd7189-854a-4916-b81b-f6a99b164909.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 0xa0c94b457b8cdb83d9ffeae5e3dfcd8db6dafaa7f7390a29decefea938603970. 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/GBAJE7000719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ea56c36c7d610de930f1bfaf53c45c2b0bd3f814d0994775ca96fad571d3b4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBAJE7100257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b508c3444797ce83a12d8393034c645272fbe175ed99d269cb21a3e0709cbc0. 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/GBAJE0608548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267478d91861292c7188001509dd9334bc000253965c35ab3ac338d274807686. 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/GBAJE7100923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8c2cde3c774ce8e6859a4a0ef4b51ea8be4d87d09ea43ba37427907512873f. 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/GBUM71002760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788a39760ff459d0d99a364c6cc44e51bee108adb48a6aca9f02db075fe684ca. 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/GBAJE0608550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45647a98963c2110f26ea4e60de249b9c97081632052ea30053d1cc877303587. 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/GBAJE0608549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa189370ef95aa2a27bc3b2b8dd31bf894a22d32c928e475167c9db61d9692898. 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/GBUM71002761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9d4be37d3f3060aee6fc52d54e59dff0a1b9caeb8e5c81a19accc4fc118616. 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/GBUM71002762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7dc69760b88fc699452586d56d2a34ee64f3ea63737561bc4fa57119326170. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBAPX7100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7574731fd1ccff2c5ab4889c72a25d10d1a51e07acb5e6e711f6d08ff950332. 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/GB5KW1801012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1465bec5087730917efc06882a8b2ef7c03d47dc2bbdb8783d4f0505ef4c44e. 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/GB5KW1801013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d5018ea5253a0f40d0c94793861437bcd8620ba371c802a327e91b788034ac. 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/GBAJE7100336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd76c0927426910e18a581c0f9daf36f4e9e38ee7462d43d1f530f5193d59dbd. 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/GB5KW1801014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b2dcebf2b32ebeef82b91a4933071d75cd95f35aacd802b6923a9fc3cbcd34. 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/GBAJE7100434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b732c2570f9b074f2a6d34f118359a22c8b113bd1bb488ddb02d0675b49f76. 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/GB5KW1801019.
Double Barrel - The Best of Dave & Ansel Collins
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cac0437935b13898860b245224110027a0bbf25ed806de1171236f1574d5e5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBAJE6900496.
Conqueror Version 3 (A.k.A. Upsetting Station)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb9139dd5f52747944b258b1e5ab887bff13fb311f31d16d15ea10f8376f792. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:01:53Z), 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/GBAJE7000483.
Black Label Reggae-Dave And Ansel Collins-Vol. 30
Best Of The Essential Hits: Dave & Ansel Collins
Best of the Essential Hits: Dave & Ansel Collins
Double Barrel - The Best of Dave and Ansel Collins
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9df489ec92f4f50533aa4cc853b3323d43e8b4f9d44a0c6f8bae39b9b65d930. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/UK8D41400168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5def9fb0da414c568dd14f4c41c20c57bcc6a7bf52cbd8b60dea9840a03b293f. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/UK8D41400169.
Barry Myers Presents Scratchy Sounds (Ska, Dub, Roots & Reggae Nuggets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecef62a1d0b049dcfa7403f162f6c37e8eacdc976b5eda68b686ffe79761c7a. 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/GBAJE7000482.
Jungle Cakes x Trojan - The Remixes Part 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb700684c0be0105b17a2fc22f958465a77cd4eabd9877ab9d378009261956dd. 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/GBFG92100154.
Jungle Cakes x Trojan: The Remixes (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5cdb394776f5b027baf166bfe5af34ec7ea69a538f1c9619d114feee899cba. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBFG92100336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851a2da1706a55de52945bd237af5e105b9fc61c90bbd9e9a4a7e7ee1968ed0e. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBFG92100344.
Jungle Cakes x Trojan - The Remixes Part 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014a06aaf0f4c05f16b5beb4232cd8acd2810e4c40e23a4276186fec890444f7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBFG92000259.