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 0x4a29e2be6ba6bab646c936e400c438beb0685bae91cafa1f7470e3f67d883e23. 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/6c036c05-8b43-4d90-a7f1-a6d738311591.json and https://artists.proofprofile.net/proofs/artist/6c036c05-8b43-4d90-a7f1-a6d738311591.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bellas Finals: Price Tag/Don’t You (Forget About Me)/Give Me Everything/Just The Way You Are/Party In The U.S.A./Turn The Beat Around
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 0x833822a09878e30e5c9131abaaa9abbb3896d06554561614790d67a840dae0f0. 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/USUM71209197.
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
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.
Pool Mashup: Just The Way You Are/Just A Dream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5401b724adbc86a4da28fae26b1258f499d20b2d9bc9b68ea9af3d3e7a9b2cd3. 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/USUM71209200.
World Championship Finale 2 - From "Pitch Perfect 2" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9453cebf7dea02bb804d974cf2c05ed376d51f0b78930e410ea29f3466be112c. 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/USUM71504650.
Kennedy Center Performance - From "Pitch Perfect 2" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac01a23bc5cd8d5566f3984402de794fb0273592484f71441d59d5a6636b032. 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/USUM71504638.
Back To Basics - From "Pitch Perfect 2" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c329668cef30b97f2547784dfb038029a55ee495ea30ee2cbd6106c3722db71. 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/USUM71504645.
Cups (“When I’m Gone”) - Campfire Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77607798c4b3b0cb19ca0c0e1e3324dcd248bbbea8c60e1cdcb2533800803a6. 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/USUM71504646.
Convention Performance - From "Pitch Perfect 2" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae76da35582ff8884ff5f64414af8d02634093f41e1904226c4afc7d0fe689d5. 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/USUM71504644.
Pitch Perfect 2 - Special Edition (Original Motion Picture Soundtrack)
Jungle - From "Pitch Perfect 2" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958b7bfda151b9af9e7f771d6bd68b05bac90ad3be49b838a858c27424d21555. 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/USUM71510826.