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 0x5d2182a5898a5650eebd8286bb06c5b31c7e8a125074bee9b17587e8c55db862. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9bb4b52-85c9-4b3f-80fd-3716099aa4f7.json and https://artists.proofprofile.net/proofs/artist/e9bb4b52-85c9-4b3f-80fd-3716099aa4f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hiedrah Presents: Tachyon Particles (Club Pack)
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 0x80e859f15bfc506fd3bb48474de28fbb0bd461efb3e58d7d328e062939cf0899. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/ARHXW2001208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbdc8d8369dcd6e66ae891356a9e72f36cf304e704f51386dfe4f5a82155dbd. 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/ARHXW2001209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d96b71e7ad719243116a782df2b1355a542b7e954959e3c625757a959b8db9. 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/GBLV62030630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093c5b8a7b106b55a9c5e0297079223593c5dc362c476aac82d33dae0dd0da47. 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/GBLV62030631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d986062067585715762a3addead539d8820c161be044ed35b4d110d679e98c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRDX62300450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa763e4d439ee38b797f845e0f9ed5a9abe33bd42ab0c2a1edf3df1bebf0af199. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/FRDX62300460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd818b3e0cb3d9b026d0b1650a694b5b75793bbb7101a585cb14650f8c5fb9d38. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRDX62300470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a48b738a8f2614bcee1c84a4ec2b3acb9ae3dc43b48d5caae4eb2b7b8ab773. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEOE82300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a81163f79c83722b80f449b9da379ed51c4dd2fe6b5037fa6cb38257dcb70c3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEOE82300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc608a1bdd928cfc9684e180a3978cd15c08cf8e3cbc4ff1a32a8e877063718. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/DEOE82300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa60a84785d6a2cd4b832c7db6d82720a0595fba3a15725e13e1a5f1e980ab14. 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/GBKQU2316610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0464343b45fa24e8eab7f08c69e824569c0ebe374cef92372117c31635f499. 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/GBKQU2316611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5fe0dbc02cdd16e0ab12879f79d81f8653bdc58c814ac38f20bcdf1ea938a0. 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/GBKQU2316612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd114a03536507b4d310575239d3a92970a9d61e8ec2ec424cf6369acfca9459. 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/GBKQU2316613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0647eedcfd4af0b1383c3fda45f5170226187028b131f07b81551c470f7caf50. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/FRR642501308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3774baafb603d0c8649c460deeb740cf486a7eb37deb1b8a958dad7b10960f0b. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/FRR642501309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4441311439919f2be00d3278976ea037ff10058c38ace5ea43d1624d81811d83. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FRR642501310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5bdb33c1b4933b299bf0303c5a297d5f79a0548edc7d0cf3f10fd0ef157e1d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCGH2592338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8794c4473f76b4d208c8dc70200d0049c2081401805d1c005e5c66f3931c89fe. 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/FRR642401706.