SemiSem
type: MusicGroup
popularity: 9
followers: 251
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x500ed81c563b18d950ab0882b07315da5713aa7c73b088620b2e0881fff6bbcb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbdf8b0f-dc49-4dfb-875b-2504c2641d7e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbdf8b0f-dc49-4dfb-875b-2504c2641d7e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbdf8b0f-dc49-4dfb-875b-2504c2641d7e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
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 0x500ed81c563b18d950ab0882b07315da5713aa7c73b088620b2e0881fff6bbcb. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbdf8b0f-dc49-4dfb-875b-2504c2641d7e.json and https://artists.proofprofile.net/proofs/artist/dbdf8b0f-dc49-4dfb-875b-2504c2641d7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
album: Prueba de Voces
  type: MusicAlbum
  date published: 2011-12-31
album: Pensando en Ti
  type: MusicAlbum
  date published: 2012-05-30
album: Hoy Te Vas
  type: MusicAlbum
  date published: 2013-06-10
album: Me Andan Buscando
  type: MusicAlbum
  date published: 2014-09-21
album: Diamante Negro
  type: MusicAlbum
  date published: 2016-05-08
album: Prohibido Olvidar
  type: MusicAlbum
  date published: 2018-09-19
album: Tiburón de Tierra, Vol. 1
  type: MusicAlbum
  date published: 2019-12-15
  track: Tiburoncita
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217286
    explicit: false
    by artist: SemiSem
    in album: Tiburón de Tierra, Vol. 1
      type: MusicAlbum
      date published: 2019-12-15
    isrc code: QZK6N1927771
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T21:01:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2946c94595cf87ba34f8766575607611e72c0d872c9da577690afa7e3df85cf0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958202
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958202
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N1927771
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T21:23:21Z
    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 0x2946c94595cf87ba34f8766575607611e72c0d872c9da577690afa7e3df85cf0. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZK6N1927771.
      date published: 2026-07-15T21:23:21Z
    audio: Tiburoncita
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.018
      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: 0.744
      additional property: Energy
        type: PropertyValue
        value: 0.668
      additional property: Speechiness
        type: PropertyValue
        value: 0.082
      additional property: Acousticness
        type: PropertyValue
        value: 0.271
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.189
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.67
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.383
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ruletta Russa
  type: MusicAlbum
  date published: 2019-12-19
album: Érase Una Vez
  type: MusicAlbum
  date published: 2019-12-26
album: Muy Mal
  type: MusicAlbum
  date published: 2020-01-28
  track: Muy Mal
    type: MusicRecording
    duration: PT1M56S
    duration ms: 116438
    explicit: false
    by artist: SemiSem
    in album: Muy Mal
      type: MusicAlbum
      date published: 2020-01-28
    isrc code: QZFYY2069108
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T20:41:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb1a4a3d007f1cccfbe90a960fc1d16c2d883129033ac57c6f64463341fb94663
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2069108
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0xb1a4a3d007f1cccfbe90a960fc1d16c2d883129033ac57c6f64463341fb94663. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZFYY2069108.
      date published: 2026-07-06T01:25:57Z
    audio: Muy Mal
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.021
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Smoking
album: Job 28:28
album: Eclipsse
album: La Travesía
album: Intro • Déjate Llevar
album: No Contestas
album: ETDT, Vol. 2

Danceability
type: PropertyValue
value: 0.548

Energy
type: PropertyValue
value: 0.631

Speechiness
type: PropertyValue
value: 0.218

Acousticness
type: PropertyValue
value: 0.368

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.35

Valence (Positivity)
type: PropertyValue
value: 0.497

Loudness (dB)
type: PropertyValue
value: -7.06

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Minor

Smoking
type: MusicAlbum
date published: 2020-04-04

Job 28:28
type: MusicAlbum
date published: 2020-04-11

Eclipsse
type: MusicAlbum
date published: 2020-05-01

La Travesía
type: MusicAlbum
date published: 2021-08-07

Intro • Déjate Llevar
type: MusicAlbum
date published: 2021-09-01

No Contestas
type: MusicAlbum
date published: 2021-09-17

ETDT, Vol. 2
type: MusicAlbum
date published: 2021-10-20