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 0x0e0eac743fb58ef03437b8fc1aaee9062b4ae48987d03106663abb3e1806acf9. 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/3673fc72-0762-4cf6-b39b-f53b9c0c245a.json and https://artists.proofprofile.net/proofs/artist/3673fc72-0762-4cf6-b39b-f53b9c0c245a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Riff Off: Mickey/Like A Virgin/Hit Me With Your Best Shot/S&M/Let’s Talk About Sex/I’ll Make Love To You/Feels Like The First Time/No Diggity
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 0xc696e2fe7624dffd204acfcf676b2ecae17ef718d08fae4f367cd9482c5e4c53. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71209199.
Riff Off - From "Pitch Perfect 2" Soundtrack
Pitch Perfect 2 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8f166c5cd1b8913157cedd05b212cce119bd7bdaaba1f1e63cd1bd72c84d56. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71504642.
Lollipop - From "Pitch Perfect 2" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50aa45aa6281b5714df9ba527aab1447c7d17829a08bf92d1934d0546dbbd0cc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUM71504639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55193330c20ba29482500b3332613ada69215f92a0b70de5ed7ee5ce578d37d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM71209190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7460c55100c0f09c2b7a1206a1c0a693f9e4e879ad5f4f4312e2e81a53669d75. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM71209191.
Jump - From "Pitch Perfect 2" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e233068edcc50bd9bb701834b205c13985b4fe0309db2b436393b2f75bd7090. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM71504643.
Pitch Perfect 2 - Special Edition (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e233068edcc50bd9bb701834b205c13985b4fe0309db2b436393b2f75bd7090. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71504643.