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 0xb719b22b5a3070c7d19cc6548388485141e50d9a3fd738b3c5a2526ebcba7323. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bc9845d-3181-4249-ae50-f591d2ad36be.json and https://artists.proofprofile.net/proofs/artist/4bc9845d-3181-4249-ae50-f591d2ad36be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Campaign for Digital Destruction (Split With Scumputer)
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 0x6e50606ed8a76129bb200cf7e9aefd6ebac1c39f8074e6f3d360212bc8ce0d31. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:54:06Z), 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/QZES61921434.
Gabber Punks on Dabs / Downed Police Helicopter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c103e2537e2e91e7992a96e06e9eba90c98c80bbaf6d9a8b99fa4a5340560b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES61921435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc66d5776e44001c59697e29f6664008d222069adbce34fcd9f951b1b75d9aeb. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:36:42Z), 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/QZES61921436.
Pre-Production Material (Rarities 2013-2019) [Demo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfb714bd702dfade34d9025d0bb1baaf6c2e5c5300c64b6367bd55132fe9123. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USSUB2035601.
War Games (Estoc Chainsaw To The Nation Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7232bc8d7156d65c23455bf69781d378f3d976b1bb75e12761b6f3ffbbdee04d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZNWT2207480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400a24f7d0b9924145651adfd5ac1cdc3073209925c953ebd1fd29b4bd459186. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWS2256492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d400fe8d36a20cf518de5915408489e1b1824d86aba67539f2ed45f76433d95. 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/QZMEM2290102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda75847dba5d8794719185e0a86c1b4c61b8a96ff8d7aa1e0d64022df00539fa. 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/QZNWT2207481.
Cybernetic Super Lover (Romeo Taylor Remix)