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 0xd11818266a632111a64434f965d4bbc50e7402a12963f524b1c1caa0a2d98377. 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/75d0fb83-efbf-46f7-8765-4a75dc14a731.json and https://artists.proofprofile.net/proofs/artist/75d0fb83-efbf-46f7-8765-4a75dc14a731.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 0xefb4a23d9d2dcf884055d6456740762296a51aded4c9172a87e484d881c423c1. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBA2D1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d33e1da0a6b46d1eb4d7b28c115be75dd44b29c35a55b8bf863576691ecd48. 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/GB2LD0902441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b1c2ab1d7690e5c770b3fbc24f487bb30c1f3887349dd9685550c1bd54f56a. 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/GB2LD1700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106047ba7a9db59b96802bb09d5162b763545d328fd439e2b3b965837fb25ae7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GB2LD1900405.
Scatta (feat. Foreign Beggars & Bare Noize)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a316e5528031231499b319bb83b4b07f2e63395f24c88041c93e01bc894373. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBTDG1000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdb2059745ff6a665c02e74ba8f903bedd5d25add7ab49978bbfedd1435b868. 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/GBTDG1000203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe018ed7e09411a1cc4c943b5b6dbc44cab9a493b890223bf8117205632b206. 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/GBDLM1200012.
Scary Monsters and Nice Sprites (Deluxe Tour Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a316e5528031231499b319bb83b4b07f2e63395f24c88041c93e01bc894373. 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/GBTDG1000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdb2059745ff6a665c02e74ba8f903bedd5d25add7ab49978bbfedd1435b868. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBTDG1000203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cbe606bfa26c92324368748e68e665db6b8e3ac6dbae76e42f0907a9064e64. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUM71110772.