1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6df4c398946f6106a5a86b9907b555a5044b15d9236157a69793434e726a823b. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d39baed-7225-4252-a895-e5d3410ddfd4.json and https://artists.proofprofile.net/proofs/artist/5d39baed-7225-4252-a895-e5d3410ddfd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Men Don't Cry (feat. Danny Whacko & IMARI)
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 → block OTSBitcoinBlock must exist at that height 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 0x136891748da8a5589397191c799f855983c5473db5d209d09dc0f215779d759b. 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/QZTB82221992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fca319adae6817f83e8127775d2d7c0f355c837b0c0a727f83b9a81a8acba1. 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/QZFZ72450159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f57617a79906fddaaf0e5858e911ab863a97b70e33c2130381b9d34f67cfbdf. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZHN82489128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d5aeb563a797e19768a24ac375afd231485121658bbad97c7d6ce6eb3e5ee4. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:07:08Z), 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/USLD91772923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca2aaf52439ddf405a168132d0dbfe2b0715fec54be7dedc8cf2ef0bfd740d2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:16:04Z), 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/USLD91773403.