Communist Daughter is an indie rock band from Saint Paul, Minnesota, founded by Johnny Solomon in 2009. They have released three albums and three EPs. History 2009-2010: Soundtrack to the End Communi
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 0x8abb895d380b2f792170c56d6675cdd843fe757511f8e4e1ccb569d29ef0fd0c. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a6bb1b0-8893-43fa-9a5a-607c84dc71bf.json and https://artists.proofprofile.net/proofs/artist/0a6bb1b0-8893-43fa-9a5a-607c84dc71bf.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 0x65bb01b60996ccfdf38c86f409b92cf6c56143364b4e2f4b882a6d017bc9276b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:20:45Z), 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/US6SS1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fb3349d024762d75a02d3a48a87663447a546ffc66f9d30a283e311d105523. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/US6SS1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c797b577faf0cb0e7715350a795c22d4c951b165f630cf61b8110961cf142d1. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/US6SS1000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e9b4ceac50953e6837e99a163fa9201c9573858e6e78fc59b6d544868fbf05. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:55:11Z), 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/QMBZ91546982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4c091f1d5f1c153d5a8c5ddf047f1df1df1db42b4b6cac74726b0e0c8bc877. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMFMF1577492.
I Was Thinking I Could Clean Up For Christmas