Old Blood
type: MusicGroup
genre: sludge metal
genre: stoner rock
description: Old Blood is an album by Mayday, released May 14, 2002. The album was recorded in May and November 2001 at Presto! Recording Studios in Lincoln, Nebraska. Mayday features the vocals and compositions o
popularity: 3
followers: 1740
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27e924956ac9ee7fb4cbb351356de2ada41b2f8fad86470df2679b3658f00a8d
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8d32be5-5cbe-41af-8024-0daafa3e072c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8d32be5-5cbe-41af-8024-0daafa3e072c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d8d32be5-5cbe-41af-8024-0daafa3e072c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x27e924956ac9ee7fb4cbb351356de2ada41b2f8fad86470df2679b3658f00a8d","name":"Old Blood","registered_at":"2026-06-21T03:40:37Z","symbol":"NIM1807759","token_address":"0x48555aed5b324f3de05c8b52134f42f14f0d205d","type":"artist","uuid":"d8d32be5-5cbe-41af-8024-0daafa3e072c"}
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 0x27e924956ac9ee7fb4cbb351356de2ada41b2f8fad86470df2679b3658f00a8d. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8d32be5-5cbe-41af-8024-0daafa3e072c.json and https://artists.proofprofile.net/proofs/artist/d8d32be5-5cbe-41af-8024-0daafa3e072c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x27e924956ac9ee7fb4cbb351356de2ada41b2f8fad86470df2679b3658f00a8d","name":"Old Blood","registered_at":"2026-06-21T03:40:37Z","symbol":"NIM1807759","token_address":"0x48555aed5b324f3de05c8b52134f42f14f0d205d","type":"artist","uuid":"d8d32be5-5cbe-41af-8024-0daafa3e072c"}
album: Old Blood
  type: MusicAlbum
  date published: 2016-08-27
album: Old Blood
  type: MusicAlbum
  date published: 2016-08-27
album: Old Blood
  type: MusicAlbum
  date published: 2016-08-27
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