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 0x95d52411e2f2b3a6ef1b7f07080e6a170397bbcbfcbb1c7e3051265ac44941b4. 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/a2fec514-61e1-404b-84b5-6e509308ac90.json and https://artists.proofprofile.net/proofs/artist/a2fec514-61e1-404b-84b5-6e509308ac90.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 0x407c7f0ea0e8ac906210cc3447cdc38f53a6c3eeea5a0f5d93fa096787d47b57. 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/QZK6F2203483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f61cc479455d5c5f59e332af43acafe327c98c06eabc09cda58ad6676a5652. 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/QZK6F2203485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc80996f59d6d4744635fcefc0ce34400fbe13991ad6eb9929d8dfa926524c2. 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/QZK6F2203488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3379e8b112e4b19223a1ed84aac1dc2c64beb51538d72aca21275fb3992715. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZK6F2203490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fdff9bb6bfadbbaa137ea553696ffb3a10650fb693d44f039b9a95195d3235. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QZK6F2203492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1f69cdead35d1adb9746ca4b45fc6806761c04d442bb421b5a900550c872e3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6F2203493.
Leave Her Alone (CJ Vickery Remix Rock Version)
Saddy Daddy-O (CJ Vickery Remix Metal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40f43c668e24c1141a2adbe7801f094defd148eb4359b5ef90f55c75da1fc25. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:39:45Z), 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/QZK6Q2358410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8d7657827b950b075e7c3fbcae374f07b9338d68ca44b6ab437072395a615f. 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/QZK6N2336416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd288b45a9dc2b7259481fc1ea501cf6ac3c78c414c121db13b2e83a9f427de52. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZK6F2203491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb5c7dccb90acb4843dd4e7d170c34a70dd733ad441c440b830ae96b6113a23. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZTBD2405660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe3371cfeb4e6f7f6e6c8f5157d1edee14075b629338060bfd63420078d2da7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6K2384544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72891b4e9315df8363149abc1fca19c3f85aac63ace0da7535d0581d9e6da880. 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/QZPLR2358602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4631b9dbc421c82aa2f4a866b8c3e0da0d8d71bcadf37c9d867d7c4ff313caf. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZDA72501705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd288b45a9dc2b7259481fc1ea501cf6ac3c78c414c121db13b2e83a9f427de52. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:34:33Z), 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/QZK6F2203491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91332fb76f5a98a11bf67399af004fddeca8af3e4998245f8e2acf82d4d11104. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6K2384546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf803494861ac940b3ab68c4746a3d6692f91e8978ae3b773a7483329ce2b8d3b. 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/QZFZ62534620.