Johan Holmström
type: MusicGroup
genre: dansband
popularity: 16
followers: 358
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x239e6203e6766ae63f43b3e8098578937584a4352ea2523348b8c3c92cf4cc91
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953701
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953701
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76cf72ba-921e-4f94-b9f5-c2e04c336655.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76cf72ba-921e-4f94-b9f5-c2e04c336655.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/76cf72ba-921e-4f94-b9f5-c2e04c336655
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:16:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x239e6203e6766ae63f43b3e8098578937584a4352ea2523348b8c3c92cf4cc91","name":"Johan Holmström","registered_at":"2026-06-14T16:55:06Z","symbol":"NIM0516654","token_address":"0x85f6a83b58d24d65fa0db5879eb3c9ede2da5b0a","type":"artist","uuid":"76cf72ba-921e-4f94-b9f5-c2e04c336655"}
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 0x239e6203e6766ae63f43b3e8098578937584a4352ea2523348b8c3c92cf4cc91. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76cf72ba-921e-4f94-b9f5-c2e04c336655.json and https://artists.proofprofile.net/proofs/artist/76cf72ba-921e-4f94-b9f5-c2e04c336655.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x239e6203e6766ae63f43b3e8098578937584a4352ea2523348b8c3c92cf4cc91","name":"Johan Holmström","registered_at":"2026-06-14T16:55:06Z","symbol":"NIM0516654","token_address":"0x85f6a83b58d24d65fa0db5879eb3c9ede2da5b0a","type":"artist","uuid":"76cf72ba-921e-4f94-b9f5-c2e04c336655"}
album: MFF-hymnen
  type: MusicAlbum
  date published: 2015-04-03
  track: MFF-hymnen - 2004 Version
    type: MusicRecording
    duration: PT2M49S
    duration ms: 169639
    explicit: false
    by artist: Johan Holmström
    in album: MFF-hymnen
      type: MusicAlbum
      date published: 2015-04-03
    genre: dansband
    isrc code: SEVGT1501003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T10:59:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x49e10c8a2a13ed6fd83c52315d116b97009c25bb2175bc607ab156dd24b89738
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956711
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956711
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVGT1501003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T22:48:52Z
    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 0x49e10c8a2a13ed6fd83c52315d116b97009c25bb2175bc607ab156dd24b89738. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/SEVGT1501003.
      date published: 2026-07-04T22:48:52Z
    audio: MFF-hymnen - 2004 Version
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.98
      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: 0.505
      additional property: Energy
        type: PropertyValue
        value: 0.432
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.093
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.142
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.241
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.972
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: MFF-hymnen - Instrumental 2010 Version
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183133
    explicit: false
    by artist: Johan Holmström
    in album: MFF-hymnen
      type: MusicAlbum
      date published: 2015-04-03
    genre: dansband
    isrc code: SEVGT1501004
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T06:44:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x354e80039b19166e2090c433dcc049e6700da79335b6cfa3c42790f09dba0c8d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958842
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958842
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVGT1501004
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:46:17Z
    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 0x354e80039b19166e2090c433dcc049e6700da79335b6cfa3c42790f09dba0c8d. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:46:17Z), 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/SEVGT1501004.
      date published: 2026-07-20T09:46:17Z
    audio: MFF-hymnen - Instrumental 2010 Version
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.486
      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: 0.265
      additional property: Energy
        type: PropertyValue
        value: 0.506
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.503
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.478
      additional property: Liveness
        type: PropertyValue
        value: 0.194
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.242
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Falsterbo Horse Show Anthem
album: Vi är Borgar
album: SFIF Hymnen - Med Hjärtat Som Grund
album: Ereban Shadow Legacy vol.1 (Original soundtrack)
album: Ereban Shadow Legacy vol.2 (Original soundtrack)

Loudness (dB)
type: PropertyValue
value: -5.138

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Falsterbo Horse Show Anthem
type: MusicAlbum
date published: 2022-05-07

Vi är Borgar
type: MusicAlbum
date published: 2022-05-20

SFIF Hymnen - Med Hjärtat Som Grund
type: MusicAlbum
date published: 2023-01-04

Ereban Shadow Legacy vol.1 (Original soundtrack)
type: MusicAlbum
date published: 2025-05-15

Ereban Shadow Legacy vol.2 (Original soundtrack)
type: MusicAlbum
date published: 2025-05-15