HAH
type: MusicGroup
description: Hah or HAH may refer to: Laughter Air Comores International, a defunct airline Hah (Korean surname) Ḥāḥ, Assyrian village in eastern Turkey Hahon language Hang Hau station, in Hong Kong Heaven
popularity: 5
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65f2d8d1d38385c73a526e26327ceecbffec19971b6f4f59f3020c39fd6fb75c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ec769b4-dcaa-4cfc-b9d0-fd916b747c80.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ec769b4-dcaa-4cfc-b9d0-fd916b747c80.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0ec769b4-dcaa-4cfc-b9d0-fd916b747c80
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
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 0x65f2d8d1d38385c73a526e26327ceecbffec19971b6f4f59f3020c39fd6fb75c. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ec769b4-dcaa-4cfc-b9d0-fd916b747c80.json and https://artists.proofprofile.net/proofs/artist/0ec769b4-dcaa-4cfc-b9d0-fd916b747c80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:05:56Z
album: VATNASKIL
  type: MusicAlbum
  date published: 2020-10-26
album: VATNASKIL
  type: MusicAlbum
  date published: 2020-10-26
album: Snýrð alltaf baki
  type: MusicAlbum
  date published: 2021-02-26
album: Nokkur ár
  type: MusicAlbum
  date published: 2021-02-26
album: Svei svei
  type: MusicAlbum
  date published: 2021-03-26
album: SKREF
  type: MusicAlbum
  date published: 2021-06-07
album: GET EKKI VIL EKKI
  type: MusicAlbum
  date published: 2022-02-11