The Negro Problem
type: MusicGroup
genre: jangle pop
genre: power pop
description: The Negro Problem is a collection of seven essays by prominent Black American writers, such as W. E. B. Du Bois and Paul Laurence Dunbar, edited by Booker T. Washington, and published in 1903. It cove
popularity: 2
followers: 434
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xda65a65e445cdd754bca9f64acc0c5444b42fbe3b1290f9b0291bca3a0ddfff3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2427aaa6-fe92-473e-af4b-a3466c58debd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2427aaa6-fe92-473e-af4b-a3466c58debd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2427aaa6-fe92-473e-af4b-a3466c58debd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xda65a65e445cdd754bca9f64acc0c5444b42fbe3b1290f9b0291bca3a0ddfff3","name":"The Negro Problem","registered_at":"2026-06-16T02:05:48Z","symbol":"NIM0903417","token_address":"0x3e147b40db9b5d5853655136bc484761ee1f1af5","type":"artist","uuid":"2427aaa6-fe92-473e-af4b-a3466c58debd"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda65a65e445cdd754bca9f64acc0c5444b42fbe3b1290f9b0291bca3a0ddfff3. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2427aaa6-fe92-473e-af4b-a3466c58debd.json and https://artists.proofprofile.net/proofs/artist/2427aaa6-fe92-473e-af4b-a3466c58debd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xda65a65e445cdd754bca9f64acc0c5444b42fbe3b1290f9b0291bca3a0ddfff3","name":"The Negro Problem","registered_at":"2026-06-16T02:05:48Z","symbol":"NIM0903417","token_address":"0x3e147b40db9b5d5853655136bc484761ee1f1af5","type":"artist","uuid":"2427aaa6-fe92-473e-af4b-a3466c58debd"}
album: Joys And Concerns
  type: MusicAlbum
  date published: 1999
album: Welcome Black
  type: MusicAlbum
  date published: 2002-09-03
album: Post Minstrel Syndrome
  type: MusicAlbum
  date published: 2009-10-05
album: Post Minstrel Syndrome
  type: MusicAlbum
  date published: 2009-10-05
album: Joys and Concerns
  type: MusicAlbum
  date published: 2009-11-02
album: Joys And Concerns
  type: MusicAlbum
  date published: 2009-11-02
album: Welcome Black
  type: MusicAlbum
  date published: 2014-07-08
album: Post Minstrel Syndrome
  type: MusicAlbum
  date published: 2014-10-30
album: Joys & Concerns
  type: MusicAlbum
  date published: 2014-10-30