Florence Reece
type: MusicGroup
description: Florence Reece (April 12, 1900 – August 3, 1986) was an American social activist, poet, and folksong writer. She is best known for the song "Which Side Are You On?" which she originally wrote at the a
popularity: 3
followers: 127
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2bf2e399f64716db9dfe92ea4571b6e5c4b8d4917198c35a15f0d7d9f907d5e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1c79bb3-e2bf-4ad1-80fc-eeb44612f9bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1c79bb3-e2bf-4ad1-80fc-eeb44612f9bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e1c79bb3-e2bf-4ad1-80fc-eeb44612f9bd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2bf2e399f64716db9dfe92ea4571b6e5c4b8d4917198c35a15f0d7d9f907d5e8","name":"Florence Reece","registered_at":"2026-06-21T07:15:41Z","symbol":"NIM1859649","token_address":"0x521d0a2acafb55df1bfa21dfdd98fb9b6ebc7750","type":"artist","uuid":"e1c79bb3-e2bf-4ad1-80fc-eeb44612f9bd"}
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 0x2bf2e399f64716db9dfe92ea4571b6e5c4b8d4917198c35a15f0d7d9f907d5e8. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1c79bb3-e2bf-4ad1-80fc-eeb44612f9bd.json and https://artists.proofprofile.net/proofs/artist/e1c79bb3-e2bf-4ad1-80fc-eeb44612f9bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x2bf2e399f64716db9dfe92ea4571b6e5c4b8d4917198c35a15f0d7d9f907d5e8","name":"Florence Reece","registered_at":"2026-06-21T07:15:41Z","symbol":"NIM1859649","token_address":"0x521d0a2acafb55df1bfa21dfdd98fb9b6ebc7750","type":"artist","uuid":"e1c79bb3-e2bf-4ad1-80fc-eeb44612f9bd"}