A Northern Chorus
type: MusicGroup
genre: dream pop
genre: post-rock
genre: shoegaze
genre: space rock
description: A Northern Chorus was a Canadian band from Hamilton, Ontario. They released four records on the Sonic Unyon label. History The band was formed in 1999 by singers/guitarists Stu Livingstone and Pete H
popularity: 4
followers: 857
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc015807bdd9c66727561caf3ce6aafd675c2aeddadd562c64baa32967354ad2e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4518042-a69a-4502-94b4-b6a128410a16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4518042-a69a-4502-94b4-b6a128410a16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4518042-a69a-4502-94b4-b6a128410a16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc015807bdd9c66727561caf3ce6aafd675c2aeddadd562c64baa32967354ad2e","name":"A Northern Chorus","registered_at":"2026-06-20T06:55:03Z","symbol":"NIM1546255","token_address":"0xe55fccdb9e9175ceebcef1d338f6c5e194a5bd35","type":"artist","uuid":"a4518042-a69a-4502-94b4-b6a128410a16"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc015807bdd9c66727561caf3ce6aafd675c2aeddadd562c64baa32967354ad2e. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4518042-a69a-4502-94b4-b6a128410a16.json and https://artists.proofprofile.net/proofs/artist/a4518042-a69a-4502-94b4-b6a128410a16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xc015807bdd9c66727561caf3ce6aafd675c2aeddadd562c64baa32967354ad2e","name":"A Northern Chorus","registered_at":"2026-06-20T06:55:03Z","symbol":"NIM1546255","token_address":"0xe55fccdb9e9175ceebcef1d338f6c5e194a5bd35","type":"artist","uuid":"a4518042-a69a-4502-94b4-b6a128410a16"}
album: Spirit Flags
  type: MusicAlbum
  date published: 2003-05-06
album: Bitter Hands Resign
  type: MusicAlbum
  date published: 2005-05-19
album: The Millions Too Many
  type: MusicAlbum
  date published: 2007-03-20