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 0x1f558e75349b3876345392d7f5cdf77ccca9d8bf44f3ed3df87bd02a1deae39b. 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/3a737d3b-4e6c-4284-87a6-1cb6effab720.json and https://artists.proofprofile.net/proofs/artist/3a737d3b-4e6c-4284-87a6-1cb6effab720.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Definitive Superhero Themes Collection
Showtime, A-Holes - From "Guardians of the Galaxy 2"
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 0x79a030cf74ae1a727394e65d89fe05bb523c4adc7ee62cecf3edc0d6daf65014. 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/GBAJC1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d46cc6bdef5de47c121addc141086d0319bdeb0d808bed840a6d7fa72a8361. 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/GBAJC1100357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6909f1566d9f552447de0dd3518eb20622835d324960e99f68785db25cf97cf. 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/GBAJC1100254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47aec087d757a113eac675ef73b1c1d8c99b9f9bff9bff41a05fad15d608085. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAJC1000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684ab789cb8fc0097ba22b841a4c2010ccc79dfd49560169a1ae5947df922626. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBAJC1600281.
Captain America March - From "Captain America: The First Avenger"
The City of Prague Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40d3f5ac5a0f3b678ac84f5bbe8c7fa231ce8e4ec8ce1e522d970d829bbd38a. 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/GBAJC1100364.
Captain America - From "Captain America: The First Avenger"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28eb9de729423627e5d6b27ac14a042591a18865db38e7a1030147a08945dad5. 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/GBAJC1600284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f0302016dfa6abc0c0442693df9adb174a942a0086cb522e4731b56adac4d8. 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/GBAJC0900001.
Snow White - From "Snow White and the Huntsman"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8c0356858ff6b7908d9af983e9aee6e592e9a2647611dcc688fa8e4499f152. 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/GBAJC1300049.
Eternal Sunshine Of The Spotless Mind - From "Eternal Sunshine Of The Spotless Mind"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c739c0f87c7e2d20a6b104509d48288fe430956fa589295ccfbdb50243039cc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAJC1000336.
Broken Arrow - Theme - From "Broken Arrow"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc944bc98ede510e2f4b5a874118268e6bed0f9e4e46304f3874ed334362385c. 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/GBAJC2000117.
Dragon's Heartbeat - From "Dragon: The Bruce Lee Story"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ee48afadf582c5112bf3ec5b8657fb2645e6b6230d97df81cd006be2874ba5. 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/GBAJC1100081.
Somewhere In My Memory - Instrumental / From "Home Alone"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba3fd4edf924bd784b30212e57e40660e70d9746b8700177d9e4d637961cc43. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAJC1500417.
El Bimbo aka The Blue Oyster Club Theme - From "Police Academy"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a84cc297ffa135c491b4048d48912b32b975365b398c71ee11b6b8510886f1. 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/GBAJC2000045.
Getta Bloomin' Move On - From "The Italian Job"
The Wire-Haired Terriers Athletic Social Club
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb1e8725615c8c13660426a3393c32acbd34b834e8f5938ad2dc5009156a307. 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/GBAJC0103423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff727195bb62f7ee0561917be23ccf360ab8a59c4805dd4e3dc7dbd80c9b7171. 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/GBAJC0900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2aff44374b72a435ab20d480b428ac7b912779ddb741cd0d9f1fcf4eaed045. 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/GBAJC1000132.
Boys Playing Airplanes - From "The Boy In The Striped Pyjamas"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b820076cdc8e850c9aa491e3933adbefdd5eea318d5fb5014f6b0a733491bdd. 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/GBAJC1100014.