Hollow Leg
type: MusicGroup
genre: doom metal
genre: sludge metal
genre: stoner rock
popularity: 2
followers: 1165
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb53bea149a744be7053ee769fb6e34870797ed00a52fe4a6caa53759eee4ed5b
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/a3d2f2d4-0db1-4041-9470-d0f953c40fd1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a3d2f2d4-0db1-4041-9470-d0f953c40fd1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a3d2f2d4-0db1-4041-9470-d0f953c40fd1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb53bea149a744be7053ee769fb6e34870797ed00a52fe4a6caa53759eee4ed5b","name":"Hollow Leg","registered_at":"2026-06-20T07:04:14Z","symbol":"NIM1547965","token_address":"0x87d177eb7a106b8ec132d4fb74f106f51752c48d","type":"artist","uuid":"a3d2f2d4-0db1-4041-9470-d0f953c40fd1"}
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 0xb53bea149a744be7053ee769fb6e34870797ed00a52fe4a6caa53759eee4ed5b. 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/a3d2f2d4-0db1-4041-9470-d0f953c40fd1.json and https://artists.proofprofile.net/proofs/artist/a3d2f2d4-0db1-4041-9470-d0f953c40fd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xb53bea149a744be7053ee769fb6e34870797ed00a52fe4a6caa53759eee4ed5b","name":"Hollow Leg","registered_at":"2026-06-20T07:04:14Z","symbol":"NIM1547965","token_address":"0x87d177eb7a106b8ec132d4fb74f106f51752c48d","type":"artist","uuid":"a3d2f2d4-0db1-4041-9470-d0f953c40fd1"}
album: Instinct
  type: MusicAlbum
  date published: 2010-11-09
album: Instinct
  type: MusicAlbum
  date published: 2010-11-09
album: Abysmal
  type: MusicAlbum
  date published: 2013-07-30
album: Abysmal
  type: MusicAlbum
  date published: 2013-07-30
album: Abysmal
  type: MusicAlbum
  date published: 2013-07-30
album: God-Eater - Single
  type: MusicAlbum
  date published: 2014-03-18
album: Crown
  type: MusicAlbum
  date published: 2016-03-04
album: Crown
  type: MusicAlbum
  date published: 2016-03-04
album: Murder
  type: MusicAlbum
  date published: 2017-03-03
album: Crown (Murder Edition)
  type: MusicAlbum
  date published: 2017-06-30
album: Mountains of Stone
  type: MusicAlbum
  date published: 2018-08-31
album: Civilizations
  type: MusicAlbum
  date published: 2019-01-25
album: Poison Bite
  type: MusicAlbum
  date published: 2024-03-14
album: DUST
  type: MusicAlbum
  date published: 2024-05-03
album: ECHOES
  type: MusicAlbum
  date published: 2024-12-06