Itoko Toma
type: MusicGroup
genre: japanese classical
popularity: 45
followers: 10135
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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 → block must exist at that height 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09b0eb949dd0ff37751aa3f7d3ca89f4678d9703da28a90952606bb902b962c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f6e4bd2-22ea-4a9b-817b-0ea3834ca309.json and https://artists.proofprofile.net/proofs/artist/1f6e4bd2-22ea-4a9b-817b-0ea3834ca309.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
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album: dreamtime
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  date published: 2010-04-07
  track: sound of dream
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  track: helpless
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  track: wind grow
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  track: word
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  track: as velvet
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  track: upstanding
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  track: timeless sleep
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  track: joy
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  track: hide it
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album: When The World Will Mix Well
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  date published: 2017-02-17
  track: For Us
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  track: Shorebird
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  track: Fantasia
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  track: Come, Open, Join
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  track: Horse from Parallel
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  track: Row, Row
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  track: Clearly Clear
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  track: Esquisse
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  track: When The Word and The Heart Will Mix Well
  track: Cantabile
album: Where The Piano Will Lead Us
album: Shade
album: The Window
album: Toe
album: Falling Raw Umber
album: Cerasus Itosakura
album: Yokaze
album: Novelletten #1
album: Ephemeral
album: Hicari
album: Flakes
album: Erica
album: Afternoon Menuet
album: Kimi
album: Sotto
album: Namima
album: Humming
album: Sou
album: Beyond the Mountain
album: Kasumi
album: Feather
album: Ukon
album: Steps
album: Caprice It
album: Robin
album: Muku
album: Beside the Moon
album: Lulu
track: Reborn
track: Will
track: Sayonara
track: Just A Little More
track: Dawn

Itoko Toma
type: MusicGroup

When The World Will Mix Well
type: MusicAlbum
date published: 2017-02-17

When The Word and The Heart Will Mix Well
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Cantabile
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When The World Will Mix Well
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track: For Us
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track: Shorebird
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track: Come, Open, Join
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When The World Will Mix Well
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Where The Piano Will Lead Us
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track: Amazing Key
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track: Silver Knot
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track: Invisible Things
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track: His Intelligence
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track: Awakening in the Water
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track: Jolly Interval
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Where The Piano Will Lead Us
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track: Amazing Key
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track: Silver Knot
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track: Invisible Things
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track: His Intelligence
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track: Awakening in the Water
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track: Jolly Interval
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Shade
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date published: 2020-01-17
track: Shade
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The Window
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track: Shade
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track: Wave
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track: Miss
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track: Leaves and Light
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track: Lemon Grass
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track: The Room
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track: Hope
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Toe
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Falling Raw Umber
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track: Falling Raw Umber
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Cerasus Itosakura
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track: Cerasus Itosakura
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track: Cerasus Speciosa
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Yokaze
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date published: 2021-10-22
track: Yokaze
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    date published: 2021-10-22

Novelletten #1
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track: Foggy Woods
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track: Petals in a Breeze
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track: Trees with Morning Dew
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Ephemeral
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    date published: 2022-03-25

Hicari
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date published: 2022-05-27
track: Hicari
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    date published: 2022-05-27

Flakes
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date published: 2023-02-24
track: Flakes
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    date published: 2023-02-24
  isrc code: GBWMY2300050

Erica
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date published: 2023-03-03
track: Erica
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    date published: 2023-03-03

Afternoon Menuet
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date published: 2023-08-04
track: Afternoon Menuet
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    date published: 2023-08-04

Kimi
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date published: 2024-02-23
track: Kimi
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    date published: 2024-02-23
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0uVlULq3iqm2OVurMiN2hk
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x6335229d667be34336b6c48371c6819bc1b49aff9d598c2037b2f8ce8911006e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0uVlULq3iqm2OVurMiN2hk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0uVlULq3iqm2OVurMiN2hk.
    date published: 2026-07-02T16:51:38Z

Sotto
type: MusicAlbum
date published: 2024-03-15
track: Sotto
  type: MusicRecording
  duration: PT2M13S
  duration ms: 133000
  explicit: false
  by artist: Itoko Toma
  in album: Sotto
    type: MusicAlbum
    date published: 2024-03-15
  isrc code: SE5ZV2461201

Namima
type: MusicAlbum
date published: 2024-03-29
track: Namima
  type: MusicRecording
  duration: PT1M47S
  duration ms: 107499
  explicit: false
  by artist: Itoko Toma
  in album: Namima
    type: MusicAlbum
    date published: 2024-03-29

Humming
type: MusicAlbum
date published: 2024-06-14
track: Humming
  type: MusicRecording
  duration: PT1M38S
  duration ms: 98000
  explicit: false
  by artist: Itoko Toma
  in album: Humming
    type: MusicAlbum
    date published: 2024-06-14
  isrc code: JPZ422400025

Sou
type: MusicAlbum
date published: 2024-06-28
track: Sou
  type: MusicRecording
  duration: PT2M27S
  duration ms: 147800
  explicit: false
  by artist: Itoko Toma
  in album: Sou
    type: MusicAlbum
    date published: 2024-06-28

Beyond the Mountain
type: MusicAlbum
date published: 2024-07-12
track: Illuminator
  type: MusicRecording
  duration: PT1M46S
  duration ms: 106000
  explicit: false
  by artist: Itoko Toma
  in album: Beyond the Mountain
    type: MusicAlbum
    date published: 2024-07-12
  isrc code: JPZ422400022
track: Path
  type: MusicRecording
  duration: PT2M15S
  duration ms: 135500
  explicit: false
  by artist: Itoko Toma
  in album: Beyond the Mountain
    type: MusicAlbum
    date published: 2024-07-12
  isrc code: JPZ422400023
track: Rainy
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136000
  explicit: false
  by artist: Itoko Toma
  in album: Beyond the Mountain
    type: MusicAlbum
    date published: 2024-07-12
  isrc code: JPZ422400024
track: Humming
  type: MusicRecording
  duration: PT1M38S
  duration ms: 98000
  explicit: false
  by artist: Itoko Toma
  in album: Beyond the Mountain
    type: MusicAlbum
    date published: 2024-07-12
  isrc code: JPZ422400025
track: Yori
  type: MusicRecording
  duration: PT2M33S
  duration ms: 153500
  explicit: false
  by artist: Itoko Toma
  in album: Beyond the Mountain
    type: MusicAlbum
    date published: 2024-07-12
  isrc code: JPZ422400026
track: Blowing
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175400
  explicit: false
  by artist: Itoko Toma
  in album: Beyond the Mountain
    type: MusicAlbum
    date published: 2024-07-12
  isrc code: JPZ422400027
track: Sou
  type: MusicRecording
  duration: PT2M27S
  duration ms: 147800
  explicit: false
  by artist: Itoko Toma
  in album: Beyond the Mountain
    type: MusicAlbum
    date published: 2024-07-12
  isrc code: JPZ422400028
track: Umibe
  type: MusicRecording
  duration: PT8M1S
  duration ms: 481300
  explicit: false
  by artist: Itoko Toma
  in album: Beyond the Mountain
    type: MusicAlbum
    date published: 2024-07-12
  isrc code: JPZ422400029

Kasumi
type: MusicAlbum
date published: 2024-08-02
track: Kasumi
  type: MusicRecording
  duration: PT1M57S
  duration ms: 117209
  explicit: false
  by artist: Itoko Toma
  in album: Kasumi
    type: MusicAlbum
    date published: 2024-08-02
  isrc code: GBWMY2400870

Feather
type: MusicAlbum
date published: 2024-12-27
track: Feather
  type: MusicRecording
  duration: PT2M40S
  duration ms: 160000
  explicit: false
  by artist: Itoko Toma
  in album: Feather
    type: MusicAlbum
    date published: 2024-12-27
  isrc code: GBWMY2401430

Ukon
type: MusicAlbum
date published: 2025-02-21
track: Ukon
  type: MusicRecording
  duration: PT1M33S
  duration ms: 93676
  explicit: false
  by artist: Itoko Toma
  in album: Ukon
    type: MusicAlbum
    date published: 2025-02-21
  isrc code: JPZ422400040

Steps
type: MusicAlbum
date published: 2025-06-13
track: Steps
  type: MusicRecording
  duration: PT1M59S
  duration ms: 119786
  explicit: false
  by artist: Itoko Toma
  in album: Steps
    type: MusicAlbum
    date published: 2025-06-13
  isrc code: GBWMY2402540

Caprice It
type: MusicAlbum
date published: 2025-06-27
track: Caprice It
  type: MusicRecording
  duration: PT2M14S
  duration ms: 134613
  explicit: false
  by artist: Itoko Toma
  in album: Caprice It
    type: MusicAlbum
    date published: 2025-06-27

Robin
type: MusicAlbum
date published: 2025-10-03
track: Robin
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154300
  explicit: false
  by artist: Itoko Toma
  in album: Robin
    type: MusicAlbum
    date published: 2025-10-03

Muku
type: MusicAlbum
date published: 2025-10-17
track: Muku
  type: MusicRecording
  duration: PT2M28S
  duration ms: 148149
  explicit: false
  by artist: Itoko Toma
  in album: Muku
    type: MusicAlbum
    date published: 2025-10-17
  isrc code: JPZ422400035

Beside the Moon
type: MusicAlbum
date published: 2025-10-31
track: Robin
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154300
  explicit: false
  by artist: Itoko Toma
  in album: Beside the Moon
    type: MusicAlbum
    date published: 2025-10-31
track: Muni
  type: MusicRecording
  duration: PT2M15S
  duration ms: 135500
  explicit: false
  by artist: Itoko Toma
  in album: Beside the Moon
    type: MusicAlbum
    date published: 2025-10-31
track: Yolu
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191599
  explicit: false
  by artist: Itoko Toma
  in album: Beside the Moon
    type: MusicAlbum
    date published: 2025-10-31
track: Shine
  type: MusicRecording
  duration: PT5M58S
  duration ms: 358600
  explicit: false
  by artist: Itoko Toma
  in album: Beside the Moon
    type: MusicAlbum
    date published: 2025-10-31
track: Lue
  type: MusicRecording
  duration: PT3M57S
  duration ms: 237850
  explicit: false
  by artist: Itoko Toma
  in album: Beside the Moon
    type: MusicAlbum
    date published: 2025-10-31
track: Muku
  type: MusicRecording
  duration: PT2M28S
  duration ms: 148149
  explicit: false
  by artist: Itoko Toma
  in album: Beside the Moon
    type: MusicAlbum
    date published: 2025-10-31
track: Seto
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169300
  explicit: false
  by artist: Itoko Toma
  in album: Beside the Moon
    type: MusicAlbum
    date published: 2025-10-31

Lulu
type: MusicAlbum
date published: 2025-11-07
track: Lulu
  type: MusicRecording
  duration: PT1M0S
  duration ms: 60061
  explicit: false
  by artist: Itoko Toma
  in album: Lulu
    type: MusicAlbum
    date published: 2025-11-07

Reborn
type: MusicRecording
duration: PT1M22S
duration ms: 82528
explicit: false
by artist: Itoko Toma
by artist: Akira Kosemura
in album: Summer Ghost Original Sound Track
  type: MusicAlbum
  date published: 2022-03-25
isrc code: JPT552200193
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T22:31:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8478ae9b807ae558ee7a618da6d6281a27811113ccc240f09110d2270190563
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/68W3GqXJuMpmN8HTt8OAhD.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/68W3GqXJuMpmN8HTt8OAhD
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xa8478ae9b807ae558ee7a618da6d6281a27811113ccc240f09110d2270190563. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/68W3GqXJuMpmN8HTt8OAhD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/68W3GqXJuMpmN8HTt8OAhD.
  date published: 2026-06-13T12:53:06Z

Will
type: MusicRecording
duration: PT0M36S
duration ms: 36228
explicit: false
by artist: Itoko Toma
by artist: Akira Kosemura
in album: Summer Ghost Original Sound Track
  type: MusicAlbum
  date published: 2022-03-25
isrc code: JPT552200194
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:54:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x200256905eb9469b87c7d64f5b63b02cff0f6c9225c662140e25ea9e46903776
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1s3xUx1fPETS4cWNmj58vN.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1s3xUx1fPETS4cWNmj58vN
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x200256905eb9469b87c7d64f5b63b02cff0f6c9225c662140e25ea9e46903776. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1s3xUx1fPETS4cWNmj58vN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1s3xUx1fPETS4cWNmj58vN.
  date published: 2026-07-02T03:30:09Z

Sayonara
type: MusicRecording
duration: PT0M39S
duration ms: 39343
explicit: false
by artist: Itoko Toma
in album: Summer Ghost Original Sound Track
  type: MusicAlbum
  date published: 2022-03-25
isrc code: JPT552200195
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T13:03:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x429bf20003e7ee8a1c43fc7829587fd5d99fb4af50b15c7bd65ed93326226d2a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0SkmMypdFPCHxb14kQ8Uqt.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0SkmMypdFPCHxb14kQ8Uqt
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x429bf20003e7ee8a1c43fc7829587fd5d99fb4af50b15c7bd65ed93326226d2a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0SkmMypdFPCHxb14kQ8Uqt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0SkmMypdFPCHxb14kQ8Uqt.
  date published: 2026-07-02T03:55:08Z

Just A Little More
type: MusicRecording
duration: PT1M49S
duration ms: 109748
explicit: false
by artist: Itoko Toma
by artist: Akira Kosemura
in album: Summer Ghost Original Sound Track
  type: MusicAlbum
  date published: 2022-03-25
isrc code: JPT552200197
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:41:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1227036e0f09cb05f2436fb5c50d534f819682b0d50acbcfba8620952245cee3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5Hz17CVaUT0LMFo2DpXT5P.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Hz17CVaUT0LMFo2DpXT5P
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1227036e0f09cb05f2436fb5c50d534f819682b0d50acbcfba8620952245cee3","isrc":"JPT552200197","name":"Just A Little More","registered_at":"2026-06-11T04:41:16Z","spotify_id":"5Hz17CVaUT0LMFo2DpXT5P","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x1227036e0f09cb05f2436fb5c50d534f819682b0d50acbcfba8620952245cee3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Hz17CVaUT0LMFo2DpXT5P.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Hz17CVaUT0LMFo2DpXT5P.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x1227036e0f09cb05f2436fb5c50d534f819682b0d50acbcfba8620952245cee3","isrc":"JPT552200197","name":"Just A Little More","registered_at":"2026-06-11T04:41:16Z","spotify_id":"5Hz17CVaUT0LMFo2DpXT5P","type":"track"}

Dawn
type: MusicRecording
duration: PT0M39S
duration ms: 39523
explicit: false
by artist: Itoko Toma
in album: Summer Ghost Original Sound Track
  type: MusicAlbum
  date published: 2022-03-25
isrc code: JPT552200198
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T08:19:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x355e05360bba5cffdb4a9279e70ce013ab8395350e0bbce7953792eb0df656b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/220EfRC1BndO8dpU4lLQwC.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/220EfRC1BndO8dpU4lLQwC
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x355e05360bba5cffdb4a9279e70ce013ab8395350e0bbce7953792eb0df656b7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/220EfRC1BndO8dpU4lLQwC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/220EfRC1BndO8dpU4lLQwC.
  date published: 2026-07-02T05:09:12Z