co3
type: MusicGroup
description: CO3 or Co3 may refer to: Carbon trioxide Carbonate MT-CO3 A postcode district in Colchester, UK Conway group Co3 in mathematics Co3, Australian contemporary dance company listed in Australian c
popularity: 6
followers: 251
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc6b99a5c7a4bbbed60f3ad43e4136ac5aafb2c2dba63a1660a7e1895ac098903
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cbc02a5-da78-42fa-814f-a5125a636a2e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cbc02a5-da78-42fa-814f-a5125a636a2e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4cbc02a5-da78-42fa-814f-a5125a636a2e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
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 0xc6b99a5c7a4bbbed60f3ad43e4136ac5aafb2c2dba63a1660a7e1895ac098903. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cbc02a5-da78-42fa-814f-a5125a636a2e.json and https://artists.proofprofile.net/proofs/artist/4cbc02a5-da78-42fa-814f-a5125a636a2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: co3
  type: MusicAlbum
  date published: 2011-03-16
album: Polen Smelter (Feat Josefine ”MC NOORA” Frida Pettersen)
  type: MusicAlbum
  date published: 2017-09-10
album: Polen Smelter
  type: MusicAlbum
  date published: 2017-09-10
album: Beautiful
  type: MusicAlbum
  date published: 2020-12-11
album: Breakfast In Bed
  type: MusicAlbum
  date published: 2020-12-11
album: Off My Mind (Freestyle)
  type: MusicAlbum
  date published: 2020-12-12
album: 100 Times (Freestyle)
  type: MusicAlbum
  date published: 2020-12-17
album: B.I.H.F
  type: MusicAlbum
  date published: 2020-12-25
album: Make Believe
  type: MusicAlbum
  date published: 2021-01-14
album: Pain Show
  type: MusicAlbum
  date published: 2021-02-06
album: Wine With Me
  type: MusicAlbum
  date published: 2021-02-22
album: Respect
  type: MusicAlbum
  date published: 2021-04-01
album: Nothing
  type: MusicAlbum
  date published: 2021-08-03
album: Baby 3
  type: MusicAlbum
  date published: 2021-08-13
album: Facts
  type: MusicAlbum
  date published: 2022-01-05
album: Brand New Bag
  type: MusicAlbum
  date published: 2022-10-28