This Patch of Sky were an Oregon instrumental post rock band, formed in 2010 in Eugene. The band typically composed cinematic instrumental pieces that combine subtle-nuanced melodies and wall-of-sound
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 0x2c7f45a96910e158bce7fb284fe216ef9d77159dcddcd6b63d5ecfa36cb3b303. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac5a2ca3-291f-4a30-b422-8081b502eb67.json and https://artists.proofprofile.net/proofs/artist/ac5a2ca3-291f-4a30-b422-8081b502eb67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x70440d244af3f975ed4c63033135ac97138d8b94eb8b138b5a5065c8742a9184. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USHM81239555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74e5d5e8d75343f895cfd3c4f4f4626dd0f47259be12b91a5e5c2170ddb3a23. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM81452971.
Time Destroys Everything, But Our Foundation Remains
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecce94bce6abbd18fc5c352a75d05a50a5cb49eaf849dffe6e07a318acc8bad. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:20:36Z), 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/USHM81452972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabf66a82c28fec24a69e8d9c11082bf6cec8983dd24f9a39590d588d53baaf9. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USHM81452975.
Standing on the Shoulders of Giants (The Battle of Frieders)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0791a44b2efdcd9a364c0e547b15a29afdf5a8dd836f6b4467e76ffa3b9ecdf4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM81452976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe450fd2cee2b0c66c0e7c79856c27874186ae2b90ba16e8b760fbecb6d0e8fd9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBKPL1665271.
Pale Lights (This Will Destroy You Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31742673c251b58a855599885092b1eecb68b4f6d2883b2b9d86638765291749. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US3X51738602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe308933e2fdfcb9d286b033418be6b8c2b8da988956cef864f3940079111118e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US3X51738603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af58d1c407a03924497796b102adab2d9b45831515dea597be720762b34e500. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:04:10Z), 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/US3X51738604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a824c24d97ecda8c3187f0e5b747c9e74a3e25efc45b90117c2bbb23f6fd099. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/US3X51738609.