Amy Hef
type: MusicGroup
popularity: 19
followers: 4570
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x645a4f0e020bff7b323991fa82c48a027f12b9f8f71c795ca07c247e65979041
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953596
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953596
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0987c379-7abe-4b82-8a41-d6b37d733af3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0987c379-7abe-4b82-8a41-d6b37d733af3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0987c379-7abe-4b82-8a41-d6b37d733af3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:21:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x645a4f0e020bff7b323991fa82c48a027f12b9f8f71c795ca07c247e65979041","name":"Amy Hef","registered_at":"2026-06-14T05:25:27Z","symbol":"NIM0352151","token_address":"0xd53ea44fd1c3487a16eb469a9cc1e2b960cddf64","type":"artist","uuid":"0987c379-7abe-4b82-8a41-d6b37d733af3"}
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 0x645a4f0e020bff7b323991fa82c48a027f12b9f8f71c795ca07c247e65979041. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0987c379-7abe-4b82-8a41-d6b37d733af3.json and https://artists.proofprofile.net/proofs/artist/0987c379-7abe-4b82-8a41-d6b37d733af3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T06:21:39Z
  text: {"copyright_id":"0x645a4f0e020bff7b323991fa82c48a027f12b9f8f71c795ca07c247e65979041","name":"Amy Hef","registered_at":"2026-06-14T05:25:27Z","symbol":"NIM0352151","token_address":"0xd53ea44fd1c3487a16eb469a9cc1e2b960cddf64","type":"artist","uuid":"0987c379-7abe-4b82-8a41-d6b37d733af3"}
album: Creepin' Me Out
  type: MusicAlbum
  date published: 2013-09-09
album: AH!
  type: MusicAlbum
  date published: 2013-10-12
album: AH!
  type: MusicAlbum
  date published: 2013-10-29
album: Ytf
  type: MusicAlbum
  date published: 2015-08-28
album: What Comes Next?
  type: MusicAlbum
  date published: 2016-05-06
album: Again
  type: MusicAlbum
  date published: 2018-03-23
album: Again
  type: MusicAlbum
  date published: 2018-03-23
album: Somehow Someway
  type: MusicAlbum
  date published: 2018-10-12
album: Don't Need Me
  type: MusicAlbum
  date published: 2019-03-22
album: Don't Need Me
  type: MusicAlbum
  date published: 2019-03-22
album: Relentless
  type: MusicAlbum
  date published: 2019-08-30
album: Relentless
  type: MusicAlbum
  date published: 2019-08-30
album: Find My Way Home
  type: MusicAlbum
  date published: 2020-05-15
album: Find My Way Home
  type: MusicAlbum
  date published: 2020-05-15
album: Between Us
  type: MusicAlbum
  date published: 2022-02-11
album: Last Christmas
  type: MusicAlbum
  date published: 2022-11-25
album: (Far From) Perfect
  type: MusicAlbum
  date published: 2024-01-19
album: Being Awesome
  type: MusicAlbum
  date published: 2025-02-21
album: It Must Have Been Love
  type: MusicAlbum
  date published: 2025-08-15
album: Hella Good
  type: MusicAlbum
  date published: 2025-10-24