Johan Ahlmark
type: MusicGroup
popularity: 7
followers: 448
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02cda0dfdbdff1ebf7f0fa45951ac2349d12d8cbf875539e9cef6a913c9f50f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9669d40-2277-4153-971e-b6e112ab4360.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9669d40-2277-4153-971e-b6e112ab4360.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d9669d40-2277-4153-971e-b6e112ab4360
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02cda0dfdbdff1ebf7f0fa45951ac2349d12d8cbf875539e9cef6a913c9f50f6","name":"Johan Ahlmark","registered_at":"2026-06-21T03:55:51Z","symbol":"NIM1811967","token_address":"0x813dd2c03bedd57a8277b3afc72f4cef1bbae04a","type":"artist","uuid":"d9669d40-2277-4153-971e-b6e112ab4360"}
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 0x02cda0dfdbdff1ebf7f0fa45951ac2349d12d8cbf875539e9cef6a913c9f50f6. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9669d40-2277-4153-971e-b6e112ab4360.json and https://artists.proofprofile.net/proofs/artist/d9669d40-2277-4153-971e-b6e112ab4360.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x02cda0dfdbdff1ebf7f0fa45951ac2349d12d8cbf875539e9cef6a913c9f50f6","name":"Johan Ahlmark","registered_at":"2026-06-21T03:55:51Z","symbol":"NIM1811967","token_address":"0x813dd2c03bedd57a8277b3afc72f4cef1bbae04a","type":"artist","uuid":"d9669d40-2277-4153-971e-b6e112ab4360"}
album: Bodybag
  type: MusicAlbum
  date published: 2019-04-05
album: Vattendroppar
  type: MusicAlbum
  date published: 2019-06-14
  track: Vattendroppar
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207875
    explicit: true
    by artist: Johan Ahlmark
    in album: Vattendroppar
      type: MusicAlbum
      date published: 2019-06-14
    isrc code: SEYOK1928661
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T20:26:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x57077fb550d86fce2d1977cf8b912888d0edff460e9ad734b67b7ad884905b65
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK1928661
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    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 0x57077fb550d86fce2d1977cf8b912888d0edff460e9ad734b67b7ad884905b65. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEYOK1928661.
      date published: 2026-07-08T03:20:19Z
    audio: Vattendroppar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.38
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.753
      additional property: Energy
        type: PropertyValue
        value: 0.739
      additional property: Speechiness
        type: PropertyValue
        value: 0.136
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.799
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.663
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.458
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Loopa Om Den
  type: MusicAlbum
  date published: 2019-09-06
album: Allt som jag tänker på
  type: MusicAlbum
  date published: 2020-07-24
album: Den andra juni
  type: MusicAlbum
  date published: 2020-07-31
  track: Den andra juni
    type: MusicRecording
    duration: PT2M7S
    duration ms: 127204
    explicit: false
    by artist: Johan Ahlmark
    in album: Den andra juni
      type: MusicAlbum
      date published: 2020-07-31
    isrc code: SEUM72000796
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T13:42:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1627290526b9b7cb9c1643325008460999196dd54247044ef43212e9ae13d861
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958428
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958428
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM72000796
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T15:15:14Z
    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 0x1627290526b9b7cb9c1643325008460999196dd54247044ef43212e9ae13d861. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/SEUM72000796.
      date published: 2026-07-17T15:15:14Z
    audio: Den andra juni
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.02
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.666
      additional property: Energy
        type: PropertyValue
        value: 0.338
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.748
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Måndag snart igen
album: Vinnarna i staden
album: The Weeknd
album: Enkelt
album: Leka med livet
album: Lavish

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.114

Valence (Positivity)
type: PropertyValue
value: 0.394

Loudness (dB)
type: PropertyValue
value: -9.183

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major

Måndag snart igen
type: MusicAlbum
date published: 2020-08-07

Vinnarna i staden
type: MusicAlbum
date published: 2020-09-04

The Weeknd
type: MusicAlbum
date published: 2020-11-27

Enkelt
type: MusicAlbum
date published: 2021-03-05

Leka med livet
type: MusicAlbum
date published: 2021-04-09

Lavish
type: MusicAlbum
date published: 2023-08-04