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 0x53764be6c5057cf6e3bb090b7565faab59e9ae83baebaf0fa3334cc9e41cbf51. 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/92142144-d1ad-474a-af8f-501e6f1ba982.json and https://artists.proofprofile.net/proofs/artist/92142144-d1ad-474a-af8f-501e6f1ba982.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
MC Stan Mashups, Vol. 1 (Slowed + Reverb)
Laila O Laila x MC Stan Mashup - Slowed + Reverb
Hawa Hawa x MC Stan Mashup - Slowed + Reverb
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 0x0750fbb841c6b01225b030691a3b64e804f52d4bcf3e2c7e67835fe4857ec384. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:41:45Z), 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/UK6822312403.
Nagada Sang Dhol x MC Stan Mashup - Slowed + Reverb
Vijay DK x MC Stan Mashup - Slowed + Reverb
MC Stan Mega Mashup, Pt. 2 - Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c107a2a5b2bf07f723a4e54639a76277ddc2e2b7f723705980e615abeba4692. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/UK6822403524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd6d80d7398aa4b02887a75569ac008322b2aba9119fec649cbc6e3fffd95f4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/UK6822403732.