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 0xc31694d4f3daf0281dfd02065a9cfb7273f954f597d3c73eb38a98d2870af09a. Chain 2 (Bitcoin): anchored in block 953841 (2026-06-15T22:20:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/002035fa-66f6-4454-bfaf-db56a6081b7c.json and https://artists.proofprofile.net/proofs/artist/002035fa-66f6-4454-bfaf-db56a6081b7c.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 0xee48ca93875b05160348e764ab518e212b382cabb9e677c842ce8dca46f364ad. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZFZ62343244.
Necroticism Through Forced Ingestion Of Gangrenous Viscera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50b059d7930db1f9c8ff2b74d3384b5602d1cfa22a676bc08f6beefb913fabf. 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/QZFZ62343245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a8e0b25d6765ba8ebafb40bb58ee27b385a4fec2a6b66ca259d353ac0c839e. 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/QZFZ62343246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f533c6349ecfb381b5dec26e07798b77dd8cf81a724e61b4759c9d4c03a6ed5. 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/QZFZ62343247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c49e705323e0c8b815906c88da02c1f9cb91bd347dd653a07c280c67898d58d. 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/QZFZ62343248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fb57695b31938fde88bfb21bb75a414c62be0127f6bebee9b56c96f4bf0539. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZMEP2305730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33965fee4388e993e55bf682b7dc22c5b711a18eef547eb0f18e16f5435e763a. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZMEP2307115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aab728ade1e9a85b7a083445e4493361f9bbb0bbdc1f8b4c60f851101e1f728. 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/QZMEP2307116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6451850a7c687bb1f4cf11cefcbb220cf8d4fd69486686cd73e89a82bfcce36a. 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/QZMEP2307117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fb57695b31938fde88bfb21bb75a414c62be0127f6bebee9b56c96f4bf0539. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZMEP2305730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a7cb4ba8034edc70dbf24b1f459a2d0bed7a733fb976e17b0fe44b94b876a4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZES62490467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56952f086dd15def69e3ef11474fda4239ce71797e05033c0f939735452e7bab. 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/QZES62490468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ce59e382f57277caa449eb4c8d7e20a9522033f4f80e31cefd06413ec8f3f5. 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/QZES62490469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547907f18e4a6af9970424bd764287e6c5e411c37404db43afa26c90c9824770. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZES62490470.