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 0xd6bad084b133864235642520facbd87e4f22de1d330fc416cbc480baf20b6eeb. 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/889e5612-4a86-4a37-b5ff-eeb4b8f18880.json and https://artists.proofprofile.net/proofs/artist/889e5612-4a86-4a37-b5ff-eeb4b8f18880.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 0x3651b6f6713628ead4d57293af9a247b36078334696dd94b9146d9eb881f90f7. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:31:42Z), 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/GBBFR0400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3542e90602c84e6680a8fe9d732c9dd8292088cd58599aa1bed82cc34cc6ca15. 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/GBBFR0400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199130a1bf4386db9be49c1567bf6d93d77f038ae76a7b0a9570a527cbdcf2d6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBBFR0400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd1cc8643112863d6acce95d6f73c1c93ab1274ce7c98d74670968111e730b6. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/GBAAN7400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc07a6cb20c6deee4f10c61ee1800e058e265064b72ec46bcc57d990e53966c. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GBAAN7400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedc639be2e91e1dc6bc801f1b50e7b4db48bca110b71ec3108b2a54eaf9c3c3. 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/GBAAN7400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aca4f8ee27963800f487432e714fa7056e7233a69fa6dae532df14a7fab0b29. 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/GBAAN7400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5590b980aafc027546820f79e37e7fdb6600e68deffb6dee7c413cf92a377fc. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBAAN7400102.
I Want To See The Bright Lights (Extended Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5974fa10eb1577c9cbf1771f66c6ebded5a626da400f6bd561922bbdbbe3c7. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:45:11Z), 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/GBAAN7400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ad8aa8b42b011430ce80dbbe3584a4e981780a88f68494fce825ee52fc6cfc. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GBAAN7400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc0e385a35e95d55e4353c80d9b89481c51179b2de67d82ea3a672c3719bc47. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/GBAAN7500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa699c6da80f4877df05267cb81e033f01d78b69530652fa6ffaa0b8f74dd7c68. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GBAAN7500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551e099abe193f12d573ac4d8a9a1dac28ab326bf40d6b78f66bb083db41f64f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBAAN7500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea071b6a3591f987dfeed0f1c9457dd07382cd3f60520850eaecaebb41b63cc. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:11:36Z), 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/GBAAN7500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73051f82d5c8073cea6712192f6467242f8a8b942cbed74a66a907a6e98d36b. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/GBAAN0400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f767e056dc4deda94f9f696c2c0095972977662e9a61d55ca10741ee9afb6f4. 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/GBAAN7400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f767e056dc4deda94f9f696c2c0095972977662e9a61d55ca10741ee9afb6f4. 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/GBAAN7400135.
A Heart Needs A Home - Alternate Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b1995e80d8b8ca7c3a83b49e399a06be2077f8905dec87786e6236b1f9f04e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:51Z), 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/GBUM71906209.
Pour Down Like Silver (Extended Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511e8df59614a203cdb51b823490ca9514fba4c5f53879c4aed0926806985642. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USRY71303006.
The Best Of Richard And Linda Thompson: The Island Record Years
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74ef3893a1a1b393bd35fc7b476f0c46dbdb642086e634e6f1699237c1734ef. 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/GBAAN7200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaba6b307101a6fefbba9b69d2091505d79308fc369c321c0540393cee006e59. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBAAN7200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ad8aa8b42b011430ce80dbbe3584a4e981780a88f68494fce825ee52fc6cfc. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBAAN7400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa699c6da80f4877df05267cb81e033f01d78b69530652fa6ffaa0b8f74dd7c68. 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/GBAAN7500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551e099abe193f12d573ac4d8a9a1dac28ab326bf40d6b78f66bb083db41f64f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBAAN7500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea071b6a3591f987dfeed0f1c9457dd07382cd3f60520850eaecaebb41b63cc. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GBAAN7500075.