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 0x736643332108c254ebf69afb342e02c271ee8c3d7aafe4646f687bc810cdbc8b. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db155467-66f1-456f-8ccf-ce3fd04c5306.json and https://artists.proofprofile.net/proofs/artist/db155467-66f1-456f-8ccf-ce3fd04c5306.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
West Side Story (Original Broadway Cast): Act I: Prologue
West Side Story (Original Broadway Cast Recording)
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 0xea0d9fa697617ede5494d1e45156a43ee8c8139db4339a2551ec7f2d4862e9af. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10411918.
West Side Story (Original Broadway Cast): Act I: Jet Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda466104dac1c23b8a04cebf4fae30f2500a031d0a07946a345c350382d00807. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10411919.
West Side Story (Original Broadway Cast): Act I: The Dance at the Gym
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eed98098b4b8802193f97fd8e9819079782ff895da0665973067e8aaae61308. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10411921.
West Side Story (Original Broadway Cast): Act I: America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdb7654af6d0450b6bedd710c98e39b5dbd4e277d23d1d1aa2b250789993462. 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/USSM10411924.
West Side Story (Original Broadway Cast): Act I: Cool
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71086a8bc6bb2a5c7a03740f408f6fda0b1b7d69871e409d5771cb582f25a0ae. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10411925.
West Side Story (Original Broadway Cast): Act I: Tonight (Quintet and Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5124c34bdc48d95f7321c2c014c427c965a515356033d8fdb685a14615b3928. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10411927.
West Side Story (Original Broadway Cast): Act I: The Rumble
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08eb57c7251cf55c21e952626c72ee5a0e4db464ff28727aac62094e4566a2b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM10411928.
West Side Story (Original Broadway Cast): Act II: Somewhere (Ballet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53783fa5cb8bf80f13c074e63d2233c4f406223a2c6ef0cc766bb03a2795a478. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10411930.
West Side Story (Original Broadway Cast): Act II: Gee, Officer Krupke
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faa8d412770db01c5182155c7790257af1ade2aaa16957b5e2dc5adacce7bcc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM10411931.
West Side Story (Original Broadway Cast): Act II: Finale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982c345ee0d72709d0bab1473be85129cb5a2ba6151e2fceefd4c4402e2d45b3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USSM10411933.