まったりDays
type: MusicGroup
popularity: 4
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x03bf283bbf9d879af3f564b8f74b1df83f5c94dc9cc7fb068b7857159d217daf
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/64210e37-e9c5-4eaa-b9ef-e7e5e7e24ac4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64210e37-e9c5-4eaa-b9ef-e7e5e7e24ac4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/64210e37-e9c5-4eaa-b9ef-e7e5e7e24ac4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x03bf283bbf9d879af3f564b8f74b1df83f5c94dc9cc7fb068b7857159d217daf","name":"まったりDays","registered_at":"2026-06-17T00:36:19Z","symbol":"NIM1225718","token_address":"0xc78b2c65d18b4cc56e48b78e86da66fa4985fe13","type":"artist","uuid":"64210e37-e9c5-4eaa-b9ef-e7e5e7e24ac4"}
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 0x03bf283bbf9d879af3f564b8f74b1df83f5c94dc9cc7fb068b7857159d217daf. 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/64210e37-e9c5-4eaa-b9ef-e7e5e7e24ac4.json and https://artists.proofprofile.net/proofs/artist/64210e37-e9c5-4eaa-b9ef-e7e5e7e24ac4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x03bf283bbf9d879af3f564b8f74b1df83f5c94dc9cc7fb068b7857159d217daf","name":"まったりDays","registered_at":"2026-06-17T00:36:19Z","symbol":"NIM1225718","token_address":"0xc78b2c65d18b4cc56e48b78e86da66fa4985fe13","type":"artist","uuid":"64210e37-e9c5-4eaa-b9ef-e7e5e7e24ac4"}
album: まったりボサノバ・究極の癒しボサノバ音楽，勉強や作業中に聞くＢＧＭ
  type: MusicAlbum
  date published: 2020-04-21
album: 癒しボサノバ：まったりカフェリラックス・気分転換ゆったり朝コーヒーブレイク
  type: MusicAlbum
  date published: 2025-01-31