Megamasso
type: MusicGroup
genre: j-rock
genre: visual kei
description: was a Japanese visual kei rock band. Their sound was lively and upbeat, with a unique mix of punk, piano ballads and pop rock. Formerly signed to NXSIE Records, they are now connected to Avex Group'
popularity: 16
followers: 11027
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06cfc61f033588576e9cdc947a9a22362713f6ad1f4e888476f083b6b26df88e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8c41c6a-9a72-4add-b569-cf655f70e75b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8c41c6a-9a72-4add-b569-cf655f70e75b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b8c41c6a-9a72-4add-b569-cf655f70e75b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cfc61f033588576e9cdc947a9a22362713f6ad1f4e888476f083b6b26df88e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8c41c6a-9a72-4add-b569-cf655f70e75b.json and https://artists.proofprofile.net/proofs/artist/b8c41c6a-9a72-4add-b569-cf655f70e75b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
album: chimes
  type: MusicAlbum
  date published: 2009-10-07
album: MEMORIES
  type: MusicAlbum
  date published: 2010-01-27
album: M of Beauty
  type: MusicAlbum
  date published: 2010-03-10
album: トワイライトスター
  type: MusicAlbum
  date published: 2010-05-26
album: トワイライトスター
  type: MusicAlbum
  date published: 2010-05-26
album: 花びら
  type: MusicAlbum
  date published: 2010-08-25
album: 花びら
  type: MusicAlbum
  date published: 2010-08-25
album: Loveless,more Loveless
  type: MusicAlbum
  date published: 2011-02-16
album: Loveless, more Loveless
  type: MusicAlbum
  date published: 2011-02-16
  track: トワイライトスター
    type: MusicRecording
    duration: PT4M43S
    duration ms: 283626
    explicit: false
    by artist: Megamasso
    in album: Loveless, more Loveless
      type: MusicAlbum
      date published: 2011-02-16
    genre: j-rock
    genre: visual kei
    isrc code: JPB601016501
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T01:40:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1e304a5020f9cb7f46e82532d3262dbda2a834717f7a65d07be643424160beb8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601016501
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e304a5020f9cb7f46e82532d3262dbda2a834717f7a65d07be643424160beb8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPB601016501.
      date published: 2026-07-04T11:19:20Z
    audio: トワイライトスター
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 164.02
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.281
      additional property: Energy
        type: PropertyValue
        value: 0.935
      additional property: Speechiness
        type: PropertyValue
        value: 0.085
      additional property: Acousticness
        type: PropertyValue
        value: 0.036
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.12
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.417
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.782
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Loveless, More Loveless
  type: MusicAlbum
  date published: 2011-03-18
album: St.Lily
  type: MusicAlbum
  date published: 2014-11-05
album: St.Lily
  type: MusicAlbum
  date published: 2014-11-05
album: St.Lily
  type: MusicAlbum
  date published: 2014-11-05
album: St.Lily
  type: MusicAlbum
  date published: 2014-11-05
album: Miss Waves/Viper Pair of Lovers
  type: MusicAlbum
  date published: 2015-03-11
album: MISS WAVES/VIPER 「ふたりはこいびと」盤
  type: MusicAlbum
  date published: 2015-03-11
album: Miss Waves/Viper Do U Miss Me?
  type: MusicAlbum
  date published: 2015-03-11
album: MISS WAVES/VIPER 「I know U miss Me」盤
  type: MusicAlbum
  date published: 2015-03-11
album: MISS WAVES/VIPER 「I know U miss Me」盤
  type: MusicAlbum
  date published: 2015-03-11
album: MISS WAVES/VIPER 「ふたりはこいびと」盤
  type: MusicAlbum
  date published: 2015-03-11
album: Miss Waves/Viper I Know U Miss Me
  type: MusicAlbum
  date published: 2015-03-11
album: MISS WAVES/VIPER 「Do U miss Me?」盤
  type: MusicAlbum
  date published: 2015-03-11
album: MISS WAVES/VIPER 「Do U miss Me?」盤
  type: MusicAlbum
  date published: 2015-03-11
album: ﾆｼｭﾀﾘ
  type: MusicAlbum
  date published: 2015-08-05
  track: ｽﾉｳｨﾌﾞﾙｰ
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232626
    explicit: false
    by artist: Megamasso
    in album: ﾆｼｭﾀﾘ
    genre: j-rock
    genre: visual kei
    isrc code: JPJ901509210
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: ｽﾉｳｨﾌﾞﾙｰ
  track: ｻｲﾚﾝﾄｶﾞｰﾙ
  track: MISS WAVES
album: Nisyutari
album: ふとん史/ｻﾞｾｶﾝﾄﾞﾆﾑﾊﾞｽ
album: 天使崩壊
album: Tenshi Houkai

Megamasso
type: MusicGroup

ﾆｼｭﾀﾘ
type: MusicAlbum
date published: 2015-08-05

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-17T12:39:32+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x5534f8274c43b019393b5baee36aff78e718d5e44ca78513d1fa7caac7afe695

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958415

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958415

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ901509210

OTSTimestamp
type: PropertyValue
value: 2026-07-17T12:50:13Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5534f8274c43b019393b5baee36aff78e718d5e44ca78513d1fa7caac7afe695. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/JPJ901509210.
date published: 2026-07-17T12:50:13Z

ｽﾉｳｨﾌﾞﾙｰ
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 94.055
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.448
additional property: Energy
  type: PropertyValue
  value: 0.951
additional property: Speechiness
  type: PropertyValue
  value: 0.065
additional property: Acousticness
  type: PropertyValue
  value: 0.001
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.061
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.405
additional property: Loudness (dB)
  type: PropertyValue
  value: -2.957
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

ｻｲﾚﾝﾄｶﾞｰﾙ
type: MusicRecording
duration: PT3M29S
duration ms: 209653
explicit: false
by artist: Megamasso
in album: ﾆｼｭﾀﾘ
  type: MusicAlbum
  date published: 2015-08-05
genre: j-rock
genre: visual kei
isrc code: JPJ901509240
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-02T21:31:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa7b24cd4dd616779cb61bda0c442e05cce91faead6843fbcf01c7568fbacd071
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956420
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956420
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ901509240
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T04:48:59Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b24cd4dd616779cb61bda0c442e05cce91faead6843fbcf01c7568fbacd071. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:48:59Z), 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/JPJ901509240.
  date published: 2026-07-17T04:48:59Z
audio: ｻｲﾚﾝﾄｶﾞｰﾙ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.038
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.498
  additional property: Energy
    type: PropertyValue
    value: 0.964
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.3
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.478
  additional property: Loudness (dB)
    type: PropertyValue
    value: -2.379
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

MISS WAVES
type: MusicRecording
duration: PT5M40S
duration ms: 340680
explicit: false
by artist: Megamasso
in album: ﾆｼｭﾀﾘ
  type: MusicAlbum
  date published: 2015-08-05
genre: j-rock
genre: visual kei
isrc code: JPJ901502180
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T03:52:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ee69b25b0d2f546929858246779408cfe2ffd245f12644144ca4b14a2513212
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ901502180
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee69b25b0d2f546929858246779408cfe2ffd245f12644144ca4b14a2513212. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPJ901502180.
  date published: 2026-07-06T07:16:32Z
audio: MISS WAVES
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.981
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.446
  additional property: Energy
    type: PropertyValue
    value: 0.941
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.001
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.252
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.397
  additional property: Loudness (dB)
    type: PropertyValue
    value: -2.279
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

ﾆｼｭﾀﾘ
type: MusicAlbum
date published: 2015-08-05

ﾆｼｭﾀﾘ
type: MusicAlbum
date published: 2015-08-05

Nisyutari
type: MusicAlbum
date published: 2015-08-05

ふとん史/ｻﾞｾｶﾝﾄﾞﾆﾑﾊﾞｽ
type: MusicAlbum
date published: 2016-12-07

ふとん史/ｻﾞｾｶﾝﾄﾞﾆﾑﾊﾞｽ
type: MusicAlbum
date published: 2016-12-07

天使崩壊
type: MusicAlbum
date published: 2017-06-21

天使崩壊
type: MusicAlbum
date published: 2017-06-21

Tenshi Houkai
type: MusicAlbum
date published: 2017-06-21

天使崩壊
type: MusicAlbum
date published: 2017-06-21