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 0xd67c57ff7226132c0bd17122b5f6328b9a91e14ea9fbbb6693b423b3c5e09792. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86ec0a7c-a303-4dd8-a843-445b3c6ef004.json and https://artists.proofprofile.net/proofs/artist/86ec0a7c-a303-4dd8-a843-445b3c6ef004.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
CWX Freestyle Session #01 (feat. DTF, Kangre & Vago)
CWX Freestyle Session #01 (Jason Cogua 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 0x3adb8be7de3093def3eae03d25292dbbe321bbfcc2ebfd67cc8746c69a78b094. 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/QZW9K2455483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6970a037e1809f6afba930d10d6bf944ef68fc62588ef53f973d284fb6b17b1c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:51:45Z), 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/US7VG2516281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bb41015f1fb476b20f407ec0d75d08cfd1e1e232be512d86b89df69feaa054. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZGLM2564675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1657cc08e71ec28dd1eba3888ed4b54f5f38f0bd9250edf5af97145ecadf1af1. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:58:00Z), 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/QZGLS2599827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f98b4b32a934e062b1499dfe99b40e0f7fc2991eed26624859d2205f52ee0b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZNJY2542828.