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 0xcd25a377fd05e20490d81719ce5b84922e2235307a97c60b28a28f22688a9dc4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4091be13-b4a0-43c1-8e59-992d7385151f.json and https://artists.proofprofile.net/proofs/artist/4091be13-b4a0-43c1-8e59-992d7385151f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Peek 2018 (Romeriksrussen) [feat. J-Dawg]
Why so Serious - Eikelirussen 2018 (feat. Shni-Tek)
Wicked Game - Nesbrurussen 2018 (feat. Skrt Nilsen)
Harrington 2019 (feat. J-Dawg & Lille Saus)
Bænkers Askerrussen 2018 (feat. Rosseau)
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 0xebfd9751b2ead4a6c38b2fc4986109ee1d152dc26e832e17182a235ec58c41fa. 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/TCADP1848401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86396327831f40b49921a8cf5919f3733828d3c5a3d4a2158cf158780d91d0ed. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAED1924029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a79101209ffa9eab77ba0729178436bf8d1ff8f2e11d85fb99f9889e33f6083. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAED1996808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45e6ab5d6d593055549bb27eda4dd50e409a259eca368a942dc4ed854b293af. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/TCAFG2044730.
Bread Head Redemption 2024 (Nadderudrussen)