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 0xe0ac17d68ea89dfb2e358aaf6491921b1164c95e38adba95e9bec48db7edd019. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5a11156-9042-4781-831a-fa9d009b1785.json and https://artists.proofprofile.net/proofs/artist/b5a11156-9042-4781-831a-fa9d009b1785.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Extralude (Wyndham Earl's More-Than-an-Interlude Remix)
Extralude - Wyndham Earl's More-Than-an-Interlude Remix
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 0x951bc3a2addafc966acc352c9673c577d45771f6d59bf8dfc55a50867ad0746c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:10:46Z), 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/UKQYX1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f05ee983859d3617a467f6e781640855a32dd6328f02a1f8f991de8ad45dcd. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMMS42006302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0861f2cc6c89a54868db657428096d62f2e76134021265091e83b194fce5242. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:08:43Z), 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/GBZG92100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863958a98a94dbc98acbce602c824ed52e4979f568b284e065eba95edfb592d9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:07:31Z), 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/GBZG92300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7800f3be5205a2401bed9bff32392c3e7566d68a72dbb096076abeeb7b703a55. 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/GBZG92300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cddf821523d51e9c43f29e0d5a828004204030a8a12ba5145f1ab58c3c69e9. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBZG92300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dce45fe95504d4904e9389334f3cad088697a7c26ed046aa8e445dbd05186a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:39:51Z), 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/GBZG92300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655776b356f618c7602970d48cc69ba4ef87321cab4ab75045251194b10ff43b. 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/GBZG92300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68a6c87967ba3ea6053618003b4bb9f8d6dee11f0b52f3a4f31a6b13a893308. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBZG92300056.