Free Warren
type: MusicGroup
description: A free warren—often simply warren—is a type of franchise or privilege conveyed by a sovereign in medieval England to an English subject, promising to hold them harmless for killing game of certain spe
popularity: 4
followers: 156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ebb23b970c153ce5c9ce64e8ccced49cdece1f703ba34df820afab3f0871961
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15f8d722-7995-40de-ab5e-d4fdd315a821.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15f8d722-7995-40de-ab5e-d4fdd315a821.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15f8d722-7995-40de-ab5e-d4fdd315a821
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0ebb23b970c153ce5c9ce64e8ccced49cdece1f703ba34df820afab3f0871961","name":"Free Warren","registered_at":"2026-06-15T21:11:57Z","symbol":"NIM0833268","token_address":"0x52019d7d4266f67eeb689d5fc4bc3b2e8c853e51","type":"artist","uuid":"15f8d722-7995-40de-ab5e-d4fdd315a821"}
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 0x0ebb23b970c153ce5c9ce64e8ccced49cdece1f703ba34df820afab3f0871961. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15f8d722-7995-40de-ab5e-d4fdd315a821.json and https://artists.proofprofile.net/proofs/artist/15f8d722-7995-40de-ab5e-d4fdd315a821.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:39:24Z
  text: {"copyright_id":"0x0ebb23b970c153ce5c9ce64e8ccced49cdece1f703ba34df820afab3f0871961","name":"Free Warren","registered_at":"2026-06-15T21:11:57Z","symbol":"NIM0833268","token_address":"0x52019d7d4266f67eeb689d5fc4bc3b2e8c853e51","type":"artist","uuid":"15f8d722-7995-40de-ab5e-d4fdd315a821"}
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  type: MusicAlbum
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  type: MusicAlbum
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