Efrem
type: MusicGroup
genre: afro house
popularity: 4
followers: 111
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x460de0cb7344149809e560be4c5d3444834c32ba04845b626e1c1c99f18808b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08c1c5c6-0d79-4dfe-93b5-a4f2a54cc717.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08c1c5c6-0d79-4dfe-93b5-a4f2a54cc717.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/08c1c5c6-0d79-4dfe-93b5-a4f2a54cc717
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460de0cb7344149809e560be4c5d3444834c32ba04845b626e1c1c99f18808b1. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08c1c5c6-0d79-4dfe-93b5-a4f2a54cc717.json and https://artists.proofprofile.net/proofs/artist/08c1c5c6-0d79-4dfe-93b5-a4f2a54cc717.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: Evelup
  type: MusicAlbum
  date published: 2022-07-01
album: Ethereal
  type: MusicAlbum
  date published: 2023-09-15
album: Evelup - (Extended Mix)
  type: MusicAlbum
  date published: 2023-11-17
album: HARK64
  type: MusicAlbum
  date published: 2024-06-10
album: EVELUP (Extended Mix)
  type: MusicAlbum
  date published: 2025-02-05
album: EVELUP (Extended Mix)
  type: MusicAlbum
  date published: 2025-02-05