Sofi Maeda
type: MusicGroup
popularity: 5
followers: 2470
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5600c1c3b2098fd2e2ac21cb8245c8a57184dbe2268ee31e999ef11f9e5d79c9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6de00bf0-ef6d-4e64-a522-2b0ad18996dc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6de00bf0-ef6d-4e64-a522-2b0ad18996dc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6de00bf0-ef6d-4e64-a522-2b0ad18996dc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5600c1c3b2098fd2e2ac21cb8245c8a57184dbe2268ee31e999ef11f9e5d79c9","name":"Sofi Maeda","registered_at":"2026-06-17T03:57:54Z","symbol":"NIM1273835","token_address":"0x5f08b147798e515177444321781e6945128cb7ce","type":"artist","uuid":"6de00bf0-ef6d-4e64-a522-2b0ad18996dc"}
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 0x5600c1c3b2098fd2e2ac21cb8245c8a57184dbe2268ee31e999ef11f9e5d79c9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6de00bf0-ef6d-4e64-a522-2b0ad18996dc.json and https://artists.proofprofile.net/proofs/artist/6de00bf0-ef6d-4e64-a522-2b0ad18996dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x5600c1c3b2098fd2e2ac21cb8245c8a57184dbe2268ee31e999ef11f9e5d79c9","name":"Sofi Maeda","registered_at":"2026-06-17T03:57:54Z","symbol":"NIM1273835","token_address":"0x5f08b147798e515177444321781e6945128cb7ce","type":"artist","uuid":"6de00bf0-ef6d-4e64-a522-2b0ad18996dc"}
album: The Silence Is Killing Me
  type: MusicAlbum
  date published: 2018-12-12
album: Feeling Alive
  type: MusicAlbum
  date published: 2019-10-31
album: The Silence Is Killing Me
  type: MusicAlbum
  date published: 2019-11-22
album: He Was a Guy
  type: MusicAlbum
  date published: 2019-12-01
album: Memories
  type: MusicAlbum
  date published: 2019-12-31
album: Memories
  type: MusicAlbum
  date published: 2019-12-31
album: You Know Me Well
  type: MusicAlbum
  date published: 2020-01-02
album: Ashita
  type: MusicAlbum
  date published: 2020-02-04
album: Ashita
  type: MusicAlbum
  date published: 2020-02-04
album: The Last Song
  type: MusicAlbum
  date published: 2020-03-10
album: The Last Song
  type: MusicAlbum
  date published: 2020-03-10
album: Macfduck
  type: MusicAlbum
  date published: 2020-04-18
album: Macfduck
  type: MusicAlbum
  date published: 2020-04-18
album: Stages
  type: MusicAlbum
  date published: 2020-12-11
album: Maybe
  type: MusicAlbum
  date published: 2021-04-02
album: Take It out (Acoustic)
  type: MusicAlbum
  date published: 2021-05-01
album: Truly Here
  type: MusicAlbum
  date published: 2022-08-14