Rainbow
type: MusicGroup
description: thumb|upright=1.35|Double rainbow and supernumerary rainbows on the inside of the primary arc. The shadow of the photographer's head at the bottom of the photograph marks the centre of the rainbow cir
popularity: 2
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf2dacf5899e3272841dde5ff26174e1b9afdb7e2cefb63d29b4dcb3672073df7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e56c78c1-6977-438d-80a6-c5ed7e5dd5e4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e56c78c1-6977-438d-80a6-c5ed7e5dd5e4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e56c78c1-6977-438d-80a6-c5ed7e5dd5e4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
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 0xf2dacf5899e3272841dde5ff26174e1b9afdb7e2cefb63d29b4dcb3672073df7. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e56c78c1-6977-438d-80a6-c5ed7e5dd5e4.json and https://artists.proofprofile.net/proofs/artist/e56c78c1-6977-438d-80a6-c5ed7e5dd5e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
album: Summer Vibes
  type: MusicAlbum
  date published: 2022-07-12