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 0x9570b8f57347eba823e97751536ba1c6b6f2560a6bbc2e40133d7cfbefb4b161. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cee5ec23-bb81-4686-98c5-e6fdd4ebe4ea.json and https://artists.proofprofile.net/proofs/artist/cee5ec23-bb81-4686-98c5-e6fdd4ebe4ea.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 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 0x17ccbed7b5219db39dd5deb442c595ef1391af3bc57d8338f24da4fea6bf8704. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTAS2419117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1606af8cb9cfeb61188cb053f13e6c20edfa767823d08415564585853117316. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZTAS2419118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf672870e96dfdadec8c3363f825530553b490f8933ccc777226bf99b50012d1e. 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/QZMEQ2377776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672c70263c3874aa9c5628789d48571fe572510c60c83b9849cc5a4b7bdb857e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZMEQ2377777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf985bfdd57a0a5d1a281e250faa9853affa90ac6e0a3d168e348fbda24d3cff0. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZMEQ2377779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa665d36c1d3fb908dc3eb550da9ef811d8262c8626146bce243792106c13c75e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMEQ2377780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131faa0723f622fbc3578d5840c1a97d2ccc25467cee27fbbaa722f67dc0db3e. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZMEQ2377781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad2285337df9ab493e0a707f089247cb9b0a4f6ae3a43c65dae60f129d754fd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMEQ2377782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db60f54871b7bbef88a1e410a711556285cef83caaf848e5a34dc249b14aed6. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZDA52513629.
Necromorphic Enhancement Through Severe Mutilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4166ca3ca5cd3f404ee6ba214331823260f77ef4411eb36c74aa4a00f234fbe6. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZDA52513630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb6b5bcab340ca56f044f485bf815b61ead0442a63e5fed3e00e7b38c3333d6. 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/QZDA52513631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b5813a38dd4469bde2d37020c7ec750633dc158921ebc7823d035155c59ee8. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZTBB2328606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e404bf6ea7248fea650e26a167571f6cedc60269c93c38dda8fba697f8b8723. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/QZTBB2328607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb22c9c7065c1f187f22b238acb1058fd9f2ebc8e92e3d4c7bc45c546e9214c. 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/QZHN82287099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f84e0b31baf5291908f275db33c4d1a9c4be1fc3d6c5dd892e617bedcc40a82. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZHN82287100.