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 0x99bc1cb1da6a0873669c9136a3d64a06a90cc1606152f458803673e1ab0248c7. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/822f1f3e-91a7-4b77-9b8c-e6a52d8cd145.json and https://artists.proofprofile.net/proofs/artist/822f1f3e-91a7-4b77-9b8c-e6a52d8cd145.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Longfingah Attack (Longfingah Meets. R.esistence in Dub)
Human Dub Invasion (Firetower Productions Dub)
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 0xd5f783aa77c5c142ab4e6a34bc7202e1e7f2f8f50b509adaddebed4c28758855. 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/GBXWN1000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c35bfed4723ed8b44e4f32e4f577b8ff01ace8e0aff092785d9bdbc171ecbb4. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEZC62328621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f303bdba503618890d55a05cf0d3b008e0a8b83d8e0b0f5e99f2706d62c9a12. 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/DEH261813022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894c3ec55c2400ad95bb177d70df843ef487de56463d5f9e07552b505c64d53a. 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/DEH261309511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05f702afa54a2fa72e950d4d75a1ec37f7136872b28fa9590cda18128d2be80. 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/UKKS72000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7558473e022a6ae240996b55d1b8c4b59a2858268419cc94fcd85def88a796. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/UKKS72300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b4dce2c689306cc7fbe9a778174d0b526ec1637c78c1d645151a4b8bbd6722. 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/DEZ651365492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7187b3d70f269ad52b0e6be075ab7b135f7466bb7375a0c43fb70ce65bd83775. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEZ651365493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4757260c5c93fb4f7ca209751052244ddcf2550f6448e4065778a5c0a6e2ec6. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEZ651365494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb546ced235700ad848d9d6bfcfec947fe4ce188c245722635d73d2483e51d719. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/DEZ651365498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ffa742781d087585c540970aeb07e8cbd364ca0e5addfbd9f0f0e14e6b24a7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEZ651365500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e39a3f622b12fda31b67351d6626e6ea8e5516dcc8c9e16a45f300abca2411f. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/DEH261712003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5280a4d691d17dcc43a07a152da719f830bc9203cc96eb53009c9eb7df4773a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/PLD641300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9e00b08f0dd31a393412babc706ee61c5ea84d621505025418fabf18e5db53. 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/PLD641300073.