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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725de78ed1c1d6835dd6b631b3eb31240631c99be0789f29d0d41c6f4dd5dfc9. 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/0a346244-c877-4e35-9544-dbf534106f37.json and https://artists.proofprofile.net/proofs/artist/0a346244-c877-4e35-9544-dbf534106f37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
When Doves Cry (The Voice Australia 2018 Performance / Live)
Survivor (The Voice Australia 2018 Performance / Live)
Sympathy For The Devil (The Voice Australia 2018 Performance / Live)
Smells Like Teen Spirit (The Voice Australia 2018 Performance / Live)
Smells Like Teen Spirit - The Voice Australia 2018 Performance / Live
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa043ad98c8a6f20ce215cb8c3a3299d64d2a6f491cdbe28a4c08d067efe6e2a7. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/AUUM71800540.
Like A Prayer (The Voice Australia 2018 Performance / Live)
Gangsta's Paradise (The Voice Australia 2018 Performance / Live)
Bohemian Rhapsody (The Voice Australia 2018 Performance / Live)
Bohemian Rhapsody - The Voice Australia 2018 Performance / Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8171c9bb9d1945a6018839e5cc73c10dfcd4fe1965f93a5b00b34a868a5d39. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUUM71800637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511c69df2dbce352b4d870ba13647fc1359d65729371da7c9c24d5c6f4de6a4d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/AUUM71800652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e09cb32c7bf6bba20d3aee32df719e6628c95dbd4a266da958f69d4d9148e6. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUUM71801053.
Wandering Strangers - Fisso & Spark Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ca30f0b0960f8e7129de5b147965841c676d3280c549f0f468faa4a9a6a6f9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/US8DZ1300367.