Back II Black
type: MusicGroup
popularity: 28
followers: 3193
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7411d88cbf50485b9a94c7e56fd2b5220707f6a2ccdd303d09be95a1240342e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66e336c1-2a0c-4750-aa98-b8bc0948ad4a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66e336c1-2a0c-4750-aa98-b8bc0948ad4a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/66e336c1-2a0c-4750-aa98-b8bc0948ad4a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7411d88cbf50485b9a94c7e56fd2b5220707f6a2ccdd303d09be95a1240342e8","name":"Back II Black","registered_at":"2026-06-11T23:19:32Z","symbol":"NIM0134425","token_address":"0xa24488feeca145adeab15aa76880c6be225d3a57","type":"artist","uuid":"66e336c1-2a0c-4750-aa98-b8bc0948ad4a"}
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 0x7411d88cbf50485b9a94c7e56fd2b5220707f6a2ccdd303d09be95a1240342e8. 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/66e336c1-2a0c-4750-aa98-b8bc0948ad4a.json and https://artists.proofprofile.net/proofs/artist/66e336c1-2a0c-4750-aa98-b8bc0948ad4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x7411d88cbf50485b9a94c7e56fd2b5220707f6a2ccdd303d09be95a1240342e8","name":"Back II Black","registered_at":"2026-06-11T23:19:32Z","symbol":"NIM0134425","token_address":"0xa24488feeca145adeab15aa76880c6be225d3a57","type":"artist","uuid":"66e336c1-2a0c-4750-aa98-b8bc0948ad4a"}
album: Örökké akarok élni
  type: MusicAlbum
  date published: 1994-08-01
  track: Nanenane
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204560
    explicit: false
    by artist: Back II Black
    in album: Örökké akarok élni
      type: MusicAlbum
      date published: 1994-08-01
    isrc code: HUMAG2001460
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T22:26:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcf72cb5bd0dba093977ff97c6d2a5e217b00b88d807d71d95270ca128b79462a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958335
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958335
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUMAG2001460
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T22:37:47Z
    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 0xcf72cb5bd0dba093977ff97c6d2a5e217b00b88d807d71d95270ca128b79462a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/HUMAG2001460.
      date published: 2026-07-16T22:37:47Z
    audio: Nanenane
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.704
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.714
      additional property: Energy
        type: PropertyValue
        value: 0.869
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.096
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.316
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.944
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.496
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Szerelembomba
  type: MusicAlbum
  date published: 1998
  track: Akár Péntek, Akár Szombat...
    type: MusicRecording
    duration: PT4M45S
    duration ms: 285840
    explicit: false
    by artist: Back II Black
    in album: Szerelembomba
      type: MusicAlbum
      date published: 1998
    isrc code: HUAC60600015
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T10:51:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x02810a9b41b62b452f46aaa3ed3500977631ea6847d3c8445815537a6cee1139
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958544
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUAC60600015
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    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 0x02810a9b41b62b452f46aaa3ed3500977631ea6847d3c8445815537a6cee1139. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/HUAC60600015.
      date published: 2026-07-18T12:14:37Z
    audio: Akár Péntek, Akár Szombat...
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.986
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.854
      additional property: Energy
        type: PropertyValue
        value: 0.883
      additional property: Speechiness
        type: PropertyValue
        value: 0.122
      additional property: Acousticness
        type: PropertyValue
        value: 0.018
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.766
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Álomszép '98
album: Szombat esti láz
album: Akár péntek, akár szombat
album: A szerelem betege lettem
album: Ülünk a téren
album: Te is lehetsz sztár!
album: Úgy vártalak
album: Ölelj át
album: Super Hits
album: Zene nelkul mit erek en
album: Tevagyazakitalegjobban
album: Sodor a Funky
album: Funkybiotikum
album: Papírkutyák
album: Papírkutyák (feat. Kovács Áron)
album: Csak a zene...
album: Volt az a nyár
album: Laza funky
album: A város a szeretőm

Loudness (dB)
type: PropertyValue
value: -6.573

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Álomszép '98
type: MusicAlbum
date published: 1998

Szombat esti láz
type: MusicAlbum
date published: 1998

Akár péntek, akár szombat
type: MusicAlbum
date published: 1998

A szerelem betege lettem
type: MusicAlbum
date published: 1999

Ülünk a téren
type: MusicAlbum
date published: 2000

Te is lehetsz sztár!
type: MusicAlbum
date published: 2000

Úgy vártalak
type: MusicAlbum
date published: 2000

Ölelj át
type: MusicAlbum
date published: 2000

Örökké akarok élni
type: MusicAlbum
date published: 2001

Super Hits
type: MusicAlbum
date published: 2001

Zene nelkul mit erek en
type: MusicAlbum
date published: 2003

Zene nelkul mit erek en
type: MusicAlbum
date published: 2003-07-30

Tevagyazakitalegjobban
type: MusicAlbum
date published: 2005

Tevagyazakitalegjobban
type: MusicAlbum
date published: 2005-10-17

Sodor a Funky
type: MusicAlbum
date published: 2006

Funkybiotikum
type: MusicAlbum
date published: 2006-05-26

Sodor a Funky
type: MusicAlbum
date published: 2006-11-24

Papírkutyák
type: MusicAlbum
date published: 2009

Funkybiotikum
type: MusicAlbum
date published: 2009

Papírkutyák (feat. Kovács Áron)
type: MusicAlbum
date published: 2009

Csak a zene...
type: MusicAlbum
date published: 2012-11-05

Csak a zene...
type: MusicAlbum
date published: 2012-11-05
track: Úgy vártalak
  type: MusicRecording
  duration: PT4M42S
  duration ms: 282360
  explicit: false
  by artist: Back II Black
  in album: Csak a zene...
    type: MusicAlbum
    date published: 2012-11-05
  isrc code: HUMAG2012340
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T12:45:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x58efe27960938e15be8a52cdd3c487285e36209a78ac1100d2723446181ab242
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956826
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956826
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUMAG2012340
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T19:27:56Z
  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 0x58efe27960938e15be8a52cdd3c487285e36209a78ac1100d2723446181ab242. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUMAG2012340.
    date published: 2026-07-05T19:27:56Z
  audio: Úgy vártalak
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.009
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.719
    additional property: Energy
      type: PropertyValue
      value: 0.739
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.036
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.038
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.813
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.76
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Volt az a nyár
type: MusicAlbum
date published: 2016-10-03

Laza funky
type: MusicAlbum
date published: 2020-09-03

A város a szeretőm
type: MusicAlbum
date published: 2022-03-09