Arrythm
type: MusicGroup
genre: lo-fi
popularity: 20
followers: 318
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd66809b8ae095db2e829db9bcada5a8095600a32c8d51b719cb1d4c2bdf06ff9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78f3ce0a-a826-427e-bf7a-4fe2a1dde6f4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78f3ce0a-a826-427e-bf7a-4fe2a1dde6f4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/78f3ce0a-a826-427e-bf7a-4fe2a1dde6f4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
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 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 0xd66809b8ae095db2e829db9bcada5a8095600a32c8d51b719cb1d4c2bdf06ff9. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78f3ce0a-a826-427e-bf7a-4fe2a1dde6f4.json and https://artists.proofprofile.net/proofs/artist/78f3ce0a-a826-427e-bf7a-4fe2a1dde6f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
album: Night Mood
  type: MusicAlbum
  date published: 2021-03-01
album: Lofi and Chill
  type: MusicAlbum
  date published: 2021-03-03
  track: Lofi and Chill
    type: MusicRecording
    duration: PT2M4S
    duration ms: 124696
    explicit: false
    by artist: Arrythm
    in album: Lofi and Chill
      type: MusicAlbum
      date published: 2021-03-03
    genre: lo-fi
    isrc code: GBSMU9581830
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T21:11:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcf646ee6181654e9967002ffb9e6a3da5609ccca198a5cf6934592be3dfc8d49
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958783
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958783
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9581830
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:20:45Z
    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 0xcf646ee6181654e9967002ffb9e6a3da5609ccca198a5cf6934592be3dfc8d49. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/GBSMU9581830.
      date published: 2026-07-19T21:20:45Z
    audio: Lofi and Chill
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.991
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.658
      additional property: Energy
        type: PropertyValue
        value: 0.023
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.938
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.956
      additional property: Liveness
        type: PropertyValue
        value: 0.053
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.037
      additional property: Loudness (dB)
        type: PropertyValue
        value: -29.04
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Sweet Sunday
  type: MusicAlbum
  date published: 2021-05-16
album: Soft Place
  type: MusicAlbum
  date published: 2021-05-25
album: Lovely Mood
  type: MusicAlbum
  date published: 2021-05-27
album: Lofi Dreams in Japan
  type: MusicAlbum
  date published: 2021-11-08
album: Japanese Lofi Journey
  type: MusicAlbum
  date published: 2021-11-12
album: Down
  type: MusicAlbum
  date published: 2022-07-07
album: Torii
  type: MusicAlbum
  date published: 2022-08-30
album: Senshi
  type: MusicAlbum
  date published: 2022-10-22
album: Yume
  type: MusicAlbum
  date published: 2022-10-28
album: Muramasa
  type: MusicAlbum
  date published: 2023-03-29
album: Takayama
  type: MusicAlbum
  date published: 2023-04-12
album: Gomenasai
  type: MusicAlbum
  date published: 2023-04-26
album: Ogama
  type: MusicAlbum
  date published: 2023-05-10
album: Mayumi
  type: MusicAlbum
  date published: 2023-05-24
album: Tsumago
  type: MusicAlbum
  date published: 2023-06-07
album: Yuki
  type: MusicAlbum
  date published: 2023-06-21
album: Soothing Afternoon in a Little Town
  type: MusicAlbum
  date published: 2023-10-26
  track: Soothing Afternoon in a Little Town
    type: MusicRecording
    duration: PT2M17S
    duration ms: 137173
    explicit: false
    by artist: Arrythm
    in album: Soothing Afternoon in a Little Town
      type: MusicAlbum
      date published: 2023-10-26
    genre: lo-fi
    isrc code: QZTB22345073
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T23:15:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7082a17d81e9adceb8338b8e61889b350a8bef00facb3b1359d5d62210352451
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959076
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Soothing Afternoon in a Little Town
album: The Magical Tree
album: The Little Big Monster
album: Stained
album: Journey in Paradise
album: Erosion of Memory
album: Akegata
album: Hibiki
album: Marude
album: Catwalk in Kyoto
album: Yukata no Yoru
album: Asahi no Torii
album: Kasa no Uta
album: Ume no Hana

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/959076

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22345073

OTSTimestamp
type: PropertyValue
value: 2026-07-21T23:41:40Z

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 0x7082a17d81e9adceb8338b8e61889b350a8bef00facb3b1359d5d62210352451. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZTB22345073.
date published: 2026-07-21T23:41:40Z

Soothing Afternoon in a Little Town
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 139.999
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 1
additional property: Danceability
  type: PropertyValue
  value: 0.705
additional property: Energy
  type: PropertyValue
  value: 0.087
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.646
additional property: Instrumentalness
  type: PropertyValue
  value: 0.836
additional property: Liveness
  type: PropertyValue
  value: 0.112
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.427
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.152
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Major

The Magical Tree
type: MusicAlbum
date published: 2023-12-07

The Little Big Monster
type: MusicAlbum
date published: 2024-01-18

Stained
type: MusicAlbum
date published: 2024-03-29

Journey in Paradise
type: MusicAlbum
date published: 2024-09-27
track: Journey in Paradise
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136959
  explicit: false
  by artist: Arrythm
  in album: Journey in Paradise
    type: MusicAlbum
    date published: 2024-09-27
  genre: lo-fi
  isrc code: QZWFJ2411523
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T22:37:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbe491e85ab0d4e5dde21e0e4991b30b1a2cb45bfc642f4c902cf891e02fb44f4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958942
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958942
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFJ2411523
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T00:24:07Z
  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 0xbe491e85ab0d4e5dde21e0e4991b30b1a2cb45bfc642f4c902cf891e02fb44f4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZWFJ2411523.
    date published: 2026-07-21T00:24:07Z
  audio: Journey in Paradise
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 146.133
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.669
    additional property: Energy
      type: PropertyValue
      value: 0.062
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.96
    additional property: Liveness
      type: PropertyValue
      value: 0.116
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.142
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.639
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Erosion of Memory
type: MusicAlbum
date published: 2024-12-30
track: Erosion of Memory
  type: MusicRecording
  duration: PT1M54S
  duration ms: 114999
  explicit: false
  by artist: Arrythm
  in album: Erosion of Memory
    type: MusicAlbum
    date published: 2024-12-30
  genre: lo-fi
  isrc code: QT3F32442000
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T12:34:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x11255d86547dc0feeeeddd089eb80f1497d8b2ec8070596b6bde0811c59ad0d1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956822
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956822
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F32442000
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T18:48:28Z
  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 0x11255d86547dc0feeeeddd089eb80f1497d8b2ec8070596b6bde0811c59ad0d1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QT3F32442000.
    date published: 2026-07-05T18:48:28Z
  audio: Erosion of Memory
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 150.14
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.628
    additional property: Energy
      type: PropertyValue
      value: 0.084
    additional property: Speechiness
      type: PropertyValue
      value: 0.114
    additional property: Acousticness
      type: PropertyValue
      value: 0.96
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.957
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.254
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.325
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Akegata
type: MusicAlbum
date published: 2025-02-21

Hibiki
type: MusicAlbum
date published: 2025-02-28

Marude
type: MusicAlbum
date published: 2025-03-07

Catwalk in Kyoto
type: MusicAlbum
date published: 2025-09-26

Yukata no Yoru
type: MusicAlbum
date published: 2025-10-03

Asahi no Torii
type: MusicAlbum
date published: 2025-10-10

Kasa no Uta
type: MusicAlbum
date published: 2025-10-17

Ume no Hana
type: MusicAlbum
date published: 2025-10-24