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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a595eb82bbd71474847ad95347521fb5e3b44ccb88981d2d844ef7d78d4354. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a086591b-c24f-49ec-919b-b25fa58170ea.json and https://artists.proofprofile.net/proofs/artist/a086591b-c24f-49ec-919b-b25fa58170ea.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9020cc4fea64e78455c054f0cc30b68ff9b7777bb5a6a17da0c7ca2504f6cac. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAER2005852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929ba314fe5a25d7a987c85e766493a9532de65d2d4897a58173d3aa563b4323. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAER2005856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9437bacf27d9cdc6c31479c9d497b9b6ac11a61184e7e958108548e6a043f50. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:37:20Z), 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/TCAER2005857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a393f52eca8227cde5b9c314e36781e22824cea87fd68af83169df5007023c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAER2005858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18b3520df6b3405d4d6c42cc1283cba80269c9f23450adaeabcd882621e591a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:02:34Z), 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/TCAER2005859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83f8d05117c7472387603595771b83451f5271784ed0db6d4aa1501ad053f68. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:09:40Z), 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/TCAER2005861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae78885d5587c7cdfe80703c458417872865f4b30f9e102bbe616e5967dea48. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/TCAER2005862.
This Feels Convoluted / Partial Collapse (Essays in Brevity)