Marku
type: MusicGroup
description: Marku is an Albanian surname. Notable people with the surname include: Albion Marku (born 2000), Albanian footballer Antonio Marku (born 1992), Albanian footballer Florian Marku (born 1996), Alban
popularity: 7
followers: 227
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c21a064290536ad7b69f0d8ced0d5e7a4311d2e0308cc382a890e583ac69856
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d28660af-f3e0-48c7-8bfd-426840734794.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d28660af-f3e0-48c7-8bfd-426840734794.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d28660af-f3e0-48c7-8bfd-426840734794
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
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 0x7c21a064290536ad7b69f0d8ced0d5e7a4311d2e0308cc382a890e583ac69856. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d28660af-f3e0-48c7-8bfd-426840734794.json and https://artists.proofprofile.net/proofs/artist/d28660af-f3e0-48c7-8bfd-426840734794.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
album: KILL ALL MEN
  type: MusicAlbum
  date published: 2020-08-11
album: pipe dream
  type: MusicAlbum
  date published: 2021-02-09
album: pipe dream
  type: MusicAlbum
  date published: 2021-02-09
album: deadend
  type: MusicAlbum
  date published: 2021-03-25
album: deadend
  type: MusicAlbum
  date published: 2021-03-25
album: what do you think of me?
  type: MusicAlbum
  date published: 2021-05-13
album: what do you think of me?
  type: MusicAlbum
  date published: 2021-05-13
album: ERSATZ
  type: MusicAlbum
  date published: 2021-07-29
album: pressure
  type: MusicAlbum
  date published: 2021-09-25
album: washed up
  type: MusicAlbum
  date published: 2021-12-28
album: bad4u
  type: MusicAlbum
  date published: 2022-01-06
album: bad4u
  type: MusicAlbum
  date published: 2022-01-06
album: washed up
  type: MusicAlbum
  date published: 2022-01-28
album: 4awhile
  type: MusicAlbum
  date published: 2022-02-25
album: 4awhile
  type: MusicAlbum
  date published: 2022-02-25
album: a little attention
  type: MusicAlbum
  date published: 2022-03-12
album: grenade
  type: MusicAlbum
  date published: 2022-04-01
album: better with time
  type: MusicAlbum
  date published: 2022-04-29
album: better with time
  type: MusicAlbum
  date published: 2022-04-29
album: no distractions
  type: MusicAlbum
  date published: 2022-06-08
album: pushing up daisies
  type: MusicAlbum
  date published: 2022-07-01
album: pushing up daisies
  type: MusicAlbum
  date published: 2022-07-01
album: bandit
  type: MusicAlbum
  date published: 2022-07-12
album: bandit
  type: MusicAlbum
  date published: 2022-07-12
album: dirt
  type: MusicAlbum
  date published: 2022-08-02
album: dirt
  type: MusicAlbum
  date published: 2022-08-02
album: i miss the way u used to look at me
  type: MusicAlbum
  date published: 2022-11-28
album: maybe our love's a phase
  type: MusicAlbum
  date published: 2022-12-20
album: maybe our love's a phase
  type: MusicAlbum
  date published: 2022-12-20
album: blunt decay
  type: MusicAlbum
  date published: 2023-01-20
album: amnesia
  type: MusicAlbum
  date published: 2023-03-17
album: losing my patience
  type: MusicAlbum
  date published: 2023-04-16
album: chemicals
  type: MusicAlbum
  date published: 2023-06-13
album: chemicals
  type: MusicAlbum
  date published: 2023-06-13
album: shade
  type: MusicAlbum
  date published: 2023-06-30
album: shade
  type: MusicAlbum
  date published: 2023-07-30
album: no control
  type: MusicAlbum
  date published: 2023-09-23
album: no control
  type: MusicAlbum
  date published: 2023-09-23
album: read between the lines
  type: MusicAlbum
  date published: 2023-11-04
album: read between the lines
  type: MusicAlbum
  date published: 2023-11-04
album: louder than words
  type: MusicAlbum
  date published: 2023-12-15
album: louder than words
  type: MusicAlbum
  date published: 2023-12-15
album: a dog chasing its tail
  type: MusicAlbum
  date published: 2024-02-22
album: a dog chasing its tail
  type: MusicAlbum
  date published: 2024-02-22
album: over with
  type: MusicAlbum
  date published: 2024-04-06
album: perfume
  type: MusicAlbum
  date published: 2024-07-12
album: perfume
  type: MusicAlbum
  date published: 2024-07-12
album: pirouette
  type: MusicAlbum
  date published: 2024-08-23
album: concrete
  type: MusicAlbum
  date published: 2024-11-08
  track: concrete
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138256
    explicit: false
    by artist: Marku
    in album: concrete
      type: MusicAlbum
      date published: 2024-11-08
    isrc code: SE6QE2494850
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T14:45:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb181fc2734c3b4629f9ff2562079591b54e403ba3b0256ad44b0d31d3a7fed52
    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: concrete
album: ez2burn
album: overstimulated
album: 5gum
album: shrink
album: gravel rash
album: i feel stuck
album: i'll be still
album: empty hands
track: Jean Jockey

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958901

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958901

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6QE2494850

OTSTimestamp
type: PropertyValue
value: 2026-07-20T15:07:00Z

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 0xb181fc2734c3b4629f9ff2562079591b54e403ba3b0256ad44b0d31d3a7fed52. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/SE6QE2494850.
date published: 2026-07-20T15:07:00Z

concrete
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 161.945
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: 0.403
additional property: Energy
  type: PropertyValue
  value: 0.488
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.472
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.097
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.631
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.396
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

ez2burn
type: MusicAlbum
date published: 2025-05-16

overstimulated
type: MusicAlbum
date published: 2025-06-10

5gum
type: MusicAlbum
date published: 2025-06-17

shrink
type: MusicAlbum
date published: 2025-06-27
track: shrink
  type: MusicRecording
  duration: PT3M35S
  duration ms: 215182
  explicit: false
  by artist: Marku
  in album: shrink
    type: MusicAlbum
    date published: 2025-06-27
  isrc code: SE6XX2555320
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T15:47:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc5e847707b91709edb14c02299f4299f988020b562c8f20f2b8b14d374fdea8a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958436
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958436
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2555320
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T16:42:22Z
  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 0xc5e847707b91709edb14c02299f4299f988020b562c8f20f2b8b14d374fdea8a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/SE6XX2555320.
    date published: 2026-07-17T16:42:22Z
  audio: shrink
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.04
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.527
    additional property: Energy
      type: PropertyValue
      value: 0.709
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.229
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.114
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.2
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.383
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

gravel rash
type: MusicAlbum
date published: 2025-07-18

i feel stuck
type: MusicAlbum
date published: 2025-09-12

i'll be still
type: MusicAlbum
date published: 2025-09-26

empty hands
type: MusicAlbum
date published: 2025-11-14

Jean Jockey
type: MusicRecording
duration: PT3M5S
duration ms: 185119
explicit: false
by artist: American Dead Cross
by artist: Marku
in album: The Nose Of A Dog
  type: MusicAlbum
  date published: 2024-08-03
isrc code: SE6I32406128
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T16:36:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0538fe774cff39cd9eabb473bc3546705d755118f98b52c53b4e58ed6784de31
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32406128
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x0538fe774cff39cd9eabb473bc3546705d755118f98b52c53b4e58ed6784de31. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SE6I32406128.
  date published: 2026-07-02T03:55:08Z
audio: Jean Jockey
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.491
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.637
  additional property: Energy
    type: PropertyValue
    value: 0.459
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.316
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.46
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.123
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major