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 0x50b553e440afd530d42905273249a0df209e21678a4350e39653ba5cd92a8ac3. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5090b300-a1d7-4827-82e4-b50db7598237.json and https://artists.proofprofile.net/proofs/artist/5090b300-a1d7-4827-82e4-b50db7598237.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Seltsame Vorkommnisse auf der Jahreshauptversammlung der Südpolfreunde
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 0x56ad4ff79c000a231561c41c002e62d4c070675b0e26f57feb3fe4949ec8273d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE3OH1619697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502849bec269c3a2617308f2a78b24c06d1b15d90a35b4793648b0e7fb97810a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SE3OH1619699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe327c0cd1d7cb7371d81b60f428281cfa644d46961ba017458aba68e8857d7a5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE3OH1619703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc820490a2a2da243a3c4984aa8c5f5063717a5052f66ab3ca8d91ef691050c8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE3OH1619708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7545b11a3e9381ab6f18e012b9c2ccc072dd0b0efeebcfed011baf36d315d850. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:43:15Z), 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/QZMER2479267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5567b5058bc2f418c9746ba9258fcbdeabd02f03b69e0680d7f64010b3de34. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZWFL2474791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dce847aa54ffe277cfd4321d48a8dafc587483c42552ea0c2c40ebe36c2856. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDA52530149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed8bf808415b5c4651c3ec8bf3b80c0e18d928eb0bc34bd0dad9fe6a502c114. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZHN82509419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa7299d142fcf2049187fb890f929d9164416296f4c386df4dad3e5473e5f3c. 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/QZNWR2545527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cbe45b00ecb85df8f0324630a3b83b6606bf59d44099227c0b4f571b3af750. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:55:24Z), 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/QZTB72554593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8061ba2ade5a16b0c55cae4bcc6ae340fe894b53979aedc1b12fe8b4a3471f3e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:36:46Z), 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/QZWFM2536204.