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 0xfb0d2b33a5d4815c7b47e09168a43da105044687fbf4fb7925ba9f1404049af2. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/457f3272-697c-4eae-9cc3-2a03f85eca39.json and https://artists.proofprofile.net/proofs/artist/457f3272-697c-4eae-9cc3-2a03f85eca39.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 0x22b6eed1493c1b77f9a263fd0bb4a8579d83bd2461c473e4ab6f93caff0924fa. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:40:17Z), 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/QZK6M2163289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974b0f09aa90050495e2dee6ae337ec8b6ed9c0f25746158287aaf4890fe5068. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:45:00Z), 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/TCACK1523501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d57e7b7062a1a17f3ede79ef2109ab90be677e1a6c0994315350e7f4f089e68. 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/TCACK1523503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5619dca4a36a1835a5bc5339aa59561301f3282b968ae9033948fee8ba6dd38a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TCACK1523506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc280479e7fe2a2b9fb5d758f2ada67e80b263aef96174cd3dc02103a652d86f9. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/DEZ651714049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf96930a91c0bc03a8571a3a50b2de73a598e114226573702d308cd8f5eb69b. 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/DEZ651714052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949cab8badafee9a443d937a7e3b2b84a38f94c86f178f37641640491e701fa1. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/DEW271326787.
The Great God Pan Is Dead (Long Live The Great God Pan) [Io Pan Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507d1cb1ea6061e1288652fedb2dd54e33f92e7847ca2a09b591443fb3ccc01b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTBC2501728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0f561ffaac24c4cb3aedadbf9e2a841cc4b004a8be4aab6f4fbcfebdc690d2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTBC2501723.