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 0xbe638c96bb8931a58f9511db6187540355fa80cbd29e452568e3118ab19b3890. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30d70a9a-5b58-4235-aaa5-23b502bfb1e4.json and https://artists.proofprofile.net/proofs/artist/30d70a9a-5b58-4235-aaa5-23b502bfb1e4.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 0x07dfc898fc75f2f770391a88dcc210d7045d415bbf9340b29a25fa71161e6811. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPS801851192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d7ce5c4053aaad587ccbd87ce0aa5dcd82775ad4cd40185649dd55e74c6caf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPQ2141982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ad0b8f97406a40749a9984c40a7fafaf468a300e71189842f664fd63e79748. 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/TCJPS2286708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cc9fdf6c9fe460fc8396f4e6685bd5be91b91a3632d683fbd08bb9c30e1664. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPS2286735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c6b7dd79b65887a68195a22f76fe3859107d714208e231464cb4662915e438. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPS2286737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd011e408720cd56fff58b725822b1055e64f96bd69cd637920a941369c876d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPS2286740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2429400560295497b738e59ab45ae6d8c1942c001251ee30f6bf3ed1a900dd3e. 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/TCJPS2286744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f3e1038aaa5a450413f3ce78ffae4d32e21bcbf83df02cddc1f668f0d695f8. 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/TCJPU2367651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c001e55e57c0facb270f88a60409f82e7a7c1013ad86ee443d516f7194500e1. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCJPW2302596.
Ressentiment City (10th Anniversary Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e322fc12e8fde9c5f552466b7ed8d3345a224601fe51a66ab7fc1a52680fbe. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:58:46Z), 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/TCJPB2467932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9687aace4336d538d0377c6e0950eee67518d3460eb20e5edce9b0ba662137. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPH2546944.