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 0xfd04f31d36cffabcec945520491cca01514abeaa226ecbfcc6d4744615275405. 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/5b86a833-afb4-4503-9c6f-a67839af512d.json and https://artists.proofprofile.net/proofs/artist/5b86a833-afb4-4503-9c6f-a67839af512d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Main Titles (From the HBO Miniseries "Band of Brothers" Soundtrack)
Band of Brothers - 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 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 0x512341ab998ac9756befa6052a3a368f8f1937ab9ba2b68189f526070a86780b. 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/USSM10108389.
Band of Brothers - Suite One (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211fe3a3bc4d8690849def7a01232f8593abb26ad4053e6ef03fe7696b10560c. 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/USSM10108390.
Band of Brothers - Suite Two (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc1c15132bc279407bd065b7f046c78425f5e5cd88b9807e7f80227acc741e5. 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/USSM10108391.
The Mission Begins (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0026099f98f7c172c5598428e2125485620b2047231adf81cc0fb1472e3e6261. 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/USSM10108392.
Swamp (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba51349dd0730ea89465b12bb52c79bfb662efadda8f2d5b74b2f2bb81ae988. 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/USSM10108393.
Spier's Speech (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ead184cae6765f549898aa5ca064e262241606e09ff9efbe389a743438711bf. 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/USSM10108394.
Fire on Lake (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26546f670996437d73fcd911cb4c52458a65b4d11c39bd28f767b0cb989113ca. 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/USSM10108395.
Parapluie (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc1786518efb9bb466ba5126665f0772a2fd0908269f4303024a381c6e47435. 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/USSM10108396.
Boy Eats Chocolate (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc20761607619e12100c264dbfc35ca9d70406c3fc9a21f7c5b95ea5fe0cf86. 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/USSM10108397.
Bull's Theme (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543e4f516263212902a4cdbe4c9b6d288f0e00fb5fc8b8019a67cc4b48c7fb3f. 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/USSM10108398.
Winters on Subway (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032247f76f2bc5d4f0761c3b07541c0444b646db7b2a02bc45119b56e3e6c0cf. 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/USSM10108399.
Headscarf (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec21a02b1fc0756ff7482be99e5e6b46d21e3d35c6692b81508b7c97ef4bbd3f. 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/USSM10108400.
Buck in Hospital (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c992fa4b7aef795261d1c00465075876e93fe4ec531d01884e9457e1d08fb9. 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/USSM10108401.
Plaisir d'amour (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70482da20ce70870ad6ffe7d26c3ac062aff6aaf2348abd28487f1e70650d46a. 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/USSM10108402.
Preparing for Patrol (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa624ff5732a0631d3d350f5debc4181d2a1fcc7b0003543832828e495827b460. 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/USSM10108403.
Discovery of the Camp (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b192559aefbc660f4fe16bba412665332d1095d2e011b8d11496a40d32a0a49. 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/USSM10108405.
Nixon's Walk (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94c3a74353b51ab5ab62bf5baffaa4948fbfe88d6f815eb2c9fc855f21cf3d4. 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/USSM10108406.
Austria (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0385e9c81d3a773adc1df0873c9d9120e6a7ada844e3e23926137ee0f3d04d9d. 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/USSM10108407.
Band of Brothers - Requiem (From the HBO Miniseries "Band of Brothers" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa449680404c74eeb9f1cc583e41feb11c4c561d4737f433f2d4d3a244460f056. 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/USSM10108408.