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 0x764dff0c91d82f0007d0c84e2d7c18af4f1ef0969dc8f596923b41e8f10449f8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdc50b00-b2ba-4fd7-bbf6-22cc9e64ba3c.json and https://artists.proofprofile.net/proofs/artist/fdc50b00-b2ba-4fd7-bbf6-22cc9e64ba3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
West Side Story (Original Motion Picture Soundtrack)
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 0x092ae2d171c8a892ae7d1d68ae436018c1ce226de1a7dedc02adf600f54cb927. 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/USSM16001103.
West Side Story: Act I: Something's Coming
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f917c54caf6077671533a52e49fab80d9f6e2afcbf22f197dce245af9f48805. 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/USSM16001099.
West Side Story: Act I: Gee, Officer Krupke
West Side Story Ensemble (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5326c3bf3c5c22908a08e5f82ffb955bdae89b01bf0d61ad34fe22bcfce699. 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/USSM16001104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59bfd1af0916e3eddb8e4081cf516da3a6270531768339a3e78eb2fca632750. 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/USSM16001096.
West Side Story: Act I: Dance at the Gym: Blues - Promenade - Mambo - Pas de deux - Jump
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd62c7cc93652db2f8f2d399a118c1e468587efc8aedaff65ac8683dc087fcd. 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/USSM16001100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca86407fba393fd4456705e11637a705084503a07a46eb30918de13da425b7d. 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/USSM16001097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32048e2b39964a04888adc2011a4f6856fd7ba58364eb385a145fed315e50d03. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USSM16001102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6383bf652c47bdd363288fd59b29b81e29b4a9acba741ad82fc8380c93ee7a9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSM16001109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87e63c9ae3107079caa0d7c23227e52fc75a4f82eaa472119c647c478667e0e. 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/USSM16001098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082218e291c10e692844d951723ad9f6dbc4a1fa501066078a5b5971d5b6c211. 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/USSM16001101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32048e2b39964a04888adc2011a4f6856fd7ba58364eb385a145fed315e50d03. 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/USSM16001102.
West Side Story: Act I: Intermission Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fe2e327caeea7d08a590db9357bed78d3a49f9dde2284800edca4a36b582a5. 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/USSM10701190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81108e0c4a466c0c6630e25a3444c9f51dceb45a845e88782fc36c6338dc19ce. 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/USSM16001105.
West Side Story: Act II: One Hand, One Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ede783b12e4ab3bf616dfa20c8aeff3f2c0ca6604fb457a01f564c216cc290. 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/USSM16001106.
West Side Story: Act II: Tonight - Quintet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5323763f5ead28aa46ae1379e00d049675fe0c98feba4261efc1369958a942. 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/USSM16001107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0341e23611920f13b7d372ab53585ce6a26dec89e2d92287a8fcda93f74b1f09. 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/USSM16001108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6383bf652c47bdd363288fd59b29b81e29b4a9acba741ad82fc8380c93ee7a9. 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/USSM16001109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee2b3dab09dce88a7efb0a3c624122a816ecfbae8913abfe6c3843375764452. 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/USSM16001110.
West Side Story: Act II: A Boy Like That - I Have A Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98780bad084d7fdb1654034132e102f7ed8f75643dc0a6bbd32fb09f4f6ed78c. 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/USSM16001111.