Costello
type: MusicGroup
description: Costello may refer to: Places Costello, Northern Territory, Australia Costello Athletic Center, a multi-purpose arena in Lowell, Massachusetts, United States Costello (barony), County Mayo, Ireland C
popularity: 4
followers: 367
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe5ed1d4154ef20b2058ff6b292f8dd291d9968a36212fd3a1f5671e10295fc2d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/039afe7c-d488-44c7-99ac-1019ec221cae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/039afe7c-d488-44c7-99ac-1019ec221cae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/039afe7c-d488-44c7-99ac-1019ec221cae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
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 0xe5ed1d4154ef20b2058ff6b292f8dd291d9968a36212fd3a1f5671e10295fc2d. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/039afe7c-d488-44c7-99ac-1019ec221cae.json and https://artists.proofprofile.net/proofs/artist/039afe7c-d488-44c7-99ac-1019ec221cae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
album: Co-coss style
  type: MusicAlbum
  date published: 2005-01-01
album: Cocoss Style 2
  type: MusicAlbum
  date published: 2010-01-01
album: A l'epreuve du feu
  type: MusicAlbum
  date published: 2011-01-01
album: Kross
  type: MusicAlbum
  date published: 2012-07-20