Supersordo
type: MusicGroup
genre: noise rock
genre: post-hardcore
description: Supersordo was a Chilean post-hardcore band, formed in 1991 and separated in 1997. The genre of the band is a hybrid of "punk and metal", classified as rock, punk, metal and post-hardcore, with noise
popularity: 6
followers: 1512
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d0da8c31fef289d633093ee81fe01da32fd5b4fc16a956a40fd6c4b96ac40b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91c395de-26aa-41a4-83d1-7b9f7c57ad2d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91c395de-26aa-41a4-83d1-7b9f7c57ad2d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/91c395de-26aa-41a4-83d1-7b9f7c57ad2d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
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 0x4d0da8c31fef289d633093ee81fe01da32fd5b4fc16a956a40fd6c4b96ac40b2. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91c395de-26aa-41a4-83d1-7b9f7c57ad2d.json and https://artists.proofprofile.net/proofs/artist/91c395de-26aa-41a4-83d1-7b9f7c57ad2d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-19T03:22:39Z
album: TzzzzzzzzT
  type: MusicAlbum
  date published: 1995-05-12
album: Un Ruido Inmenso de Rock
  type: MusicAlbum
  date published: 2000-04-24