もみじば
type: MusicGroup
popularity: 8
followers: 102
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc160abc9aed79b9c7dfaacb6135c2f67c80849a57556bf76e492b664fb24952a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1487e3fd-ae65-4d22-a893-65611c500891.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1487e3fd-ae65-4d22-a893-65611c500891.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1487e3fd-ae65-4d22-a893-65611c500891
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc160abc9aed79b9c7dfaacb6135c2f67c80849a57556bf76e492b664fb24952a","name":"もみじば","registered_at":"2026-06-15T20:43:58Z","symbol":"NIM0826597","token_address":"0x684b96fd5471cff3136357c1884de3cb3d4c773e","type":"artist","uuid":"1487e3fd-ae65-4d22-a893-65611c500891"}
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 0xc160abc9aed79b9c7dfaacb6135c2f67c80849a57556bf76e492b664fb24952a. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1487e3fd-ae65-4d22-a893-65611c500891.json and https://artists.proofprofile.net/proofs/artist/1487e3fd-ae65-4d22-a893-65611c500891.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:05:05Z
  text: {"copyright_id":"0xc160abc9aed79b9c7dfaacb6135c2f67c80849a57556bf76e492b664fb24952a","name":"もみじば","registered_at":"2026-06-15T20:43:58Z","symbol":"NIM0826597","token_address":"0x684b96fd5471cff3136357c1884de3cb3d4c773e","type":"artist","uuid":"1487e3fd-ae65-4d22-a893-65611c500891"}
album: とてもかわいいピアノBGMコレクション
  type: MusicAlbum
  date published: 2021-08-11
album: ほのぼの日常系BGM集
  type: MusicAlbum
  date published: 2022-02-15
album: まぬけで気が抜けるアルバム
  type: MusicAlbum
  date published: 2022-02-24
album: Epic and Cinematic Trailer Style Music
  type: MusicAlbum
  date published: 2022-02-24
album: すごくかわいいBGMコレクション
  type: MusicAlbum
  date published: 2022-06-20
album: テンション＆モチベーションが高まるハリウッド風オーケストラ
  type: MusicAlbum
  date published: 2022-06-21
album: 国民的アニメぽいBGM集
  type: MusicAlbum
  date published: 2023-09-06
album: クラシカルで可愛いピアノ曲
  type: MusicAlbum
  date published: 2023-10-11
album: おやすみ睡眠用キラキラBGM集
  type: MusicAlbum
  date published: 2023-10-11
album: ほのぼの日常系BGM集2
  type: MusicAlbum
  date published: 2023-10-11
album: 壮大なファンタジーオーケストラ｜Cinematic
  type: MusicAlbum
  date published: 2024-07-08
album: 明るいエピックオーケストラ｜Cinematic
  type: MusicAlbum
  date published: 2024-07-08
album: キッズ・子供番組向けBGM集
  type: MusicAlbum
  date published: 2024-07-09
album: 日本を感じる和風音楽集
  type: MusicAlbum
  date published: 2024-10-17
album: ほのぼの日常系BGM集2
  type: MusicAlbum
  date published: 2024-12-12
album: かわいいほのぼのBGM集
  type: MusicAlbum
  date published: 2025-09-22
track: 懐石
  type: MusicRecording
  duration: PT2M17S
  duration ms: 137400
  explicit: false
  by artist: もみじば
  in album: 和の心を感じるリラックスBGM -箏や尺八、三味線など日本の伝統的な-
    type: MusicAlbum
    date published: 2024-02-02
  isrc code: JPW792005047
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T05:08:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe31814c73d09ee5fa50af9198a8a48c39b4ffd82397fcbba24fd096d04ffa1eb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960348
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960348
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792005047
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T05:17:02Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xe31814c73d09ee5fa50af9198a8a48c39b4ffd82397fcbba24fd096d04ffa1eb. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792005047.
    date published: 2026-07-31T05:17:02Z
  audio: 懐石
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 152.006
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.759
    additional property: Energy
      type: PropertyValue
      value: 0.18
    additional property: Speechiness
      type: PropertyValue
      value: 0.155
    additional property: Acousticness
      type: PropertyValue
      value: 0.988
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.909
    additional property: Liveness
      type: PropertyValue
      value: 0.144
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.1
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.307
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 悠久の砦
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189461
  explicit: false
  by artist: もみじば
  in album: 和風 Vol.21 -Instrumental BGM- by Audiostock
    type: MusicAlbum
    date published: 2021-01-27
  isrc code: JPW792018707
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T06:59:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5a0bc6868a3ce34023bb76c6cad376b7117260ad757a53ac77414e38ef753bdd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792018707
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 悠久の砦

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:30:09Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0bc6868a3ce34023bb76c6cad376b7117260ad757a53ac77414e38ef753bdd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792018707.
date published: 2026-07-02T03:30:09Z

悠久の砦
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 103.057
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.407
additional property: Energy
  type: PropertyValue
  value: 0.301
additional property: Speechiness
  type: PropertyValue
  value: 0.027
additional property: Acousticness
  type: PropertyValue
  value: 0.5
additional property: Instrumentalness
  type: PropertyValue
  value: 0.306
additional property: Liveness
  type: PropertyValue
  value: 0.072
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.349
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.954
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor