Maria Spichers
type: MusicGroup
genre: dembow
popularity: 14
followers: 207
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x16848ccf40aa8dd8abd6b20689d49378dc8795fe15697e98a696ffcc999aa2d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8d6f244-838a-492f-b9a2-97d99b774d72.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8d6f244-838a-492f-b9a2-97d99b774d72.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d8d6f244-838a-492f-b9a2-97d99b774d72
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x16848ccf40aa8dd8abd6b20689d49378dc8795fe15697e98a696ffcc999aa2d6","name":"Maria Spichers","registered_at":"2026-06-15T03:19:06Z","symbol":"NIM0665545","token_address":"0x8b656be1443d17a157e78edd761faae8af3a8757","type":"artist","uuid":"d8d6f244-838a-492f-b9a2-97d99b774d72"}
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 0x16848ccf40aa8dd8abd6b20689d49378dc8795fe15697e98a696ffcc999aa2d6. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8d6f244-838a-492f-b9a2-97d99b774d72.json and https://artists.proofprofile.net/proofs/artist/d8d6f244-838a-492f-b9a2-97d99b774d72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x16848ccf40aa8dd8abd6b20689d49378dc8795fe15697e98a696ffcc999aa2d6","name":"Maria Spichers","registered_at":"2026-06-15T03:19:06Z","symbol":"NIM0665545","token_address":"0x8b656be1443d17a157e78edd761faae8af3a8757","type":"artist","uuid":"d8d6f244-838a-492f-b9a2-97d99b774d72"}
album: Me la Sube
  type: MusicAlbum
  date published: 2023
album: Como Yo
  type: MusicAlbum
  date published: 2023
album: Me la Sube
  type: MusicAlbum
  date published: 2024-05-25
album: Me la Sube
  type: MusicAlbum
  date published: 2024-05-25
  track: Me la Sube
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145250
    explicit: false
    by artist: Maria Spichers
    in album: Me la Sube
      type: MusicAlbum
      date published: 2024-05-25
    genre: dembow
    isrc code: QZNJW2449030
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T16:45:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf53fa0795bd50494501a6add339fb86a06b6934b0f10e18ec275b62de2b1d1f5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2449030
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0xf53fa0795bd50494501a6add339fb86a06b6934b0f10e18ec275b62de2b1d1f5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNJW2449030.
      date published: 2026-07-03T21:18:05Z
    audio: Me la Sube
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 46.139
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.783
      additional property: Energy
        type: PropertyValue
        value: 0.614
      additional property: Speechiness
        type: PropertyValue
        value: 0.309
      additional property: Acousticness
        type: PropertyValue
        value: 0.177
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.173
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.724
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.812
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Como Yo
  type: MusicAlbum
  date published: 2024-06-22
album: Otra Noche
  type: MusicAlbum
  date published: 2024-08-07
album: Otra Noche
  type: MusicAlbum
  date published: 2024-08-07
  track: Otra Noche
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138412
    explicit: true
    by artist: Maria Spichers
    in album: Otra Noche
      type: MusicAlbum
      date published: 2024-08-07
    genre: dembow
    isrc code: QZNJZ2449499
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T04:00:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x82fd481a44f53c32132ca7c71ec461a1ae12993df433036cec33acfe2e6d0014
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958362
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958362
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2449499
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T04:32:48Z
    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 0x82fd481a44f53c32132ca7c71ec461a1ae12993df433036cec33acfe2e6d0014. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZNJZ2449499.
      date published: 2026-07-17T04:32:48Z
    audio: Otra Noche
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.032
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.744
      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: No Me Vas a Olvidar
album: Sadico
album: Pa Atra
album: Sativa
album: Chocame
album: Tu Amiga
album: Wow Pah

Energy
type: PropertyValue
value: 0.702

Speechiness
type: PropertyValue
value: 0.088

Acousticness
type: PropertyValue
value: 0.094

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.152

Valence (Positivity)
type: PropertyValue
value: 0.656

Loudness (dB)
type: PropertyValue
value: -5.551

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

No Me Vas a Olvidar
type: MusicAlbum
date published: 2024-10-17

Sadico
type: MusicAlbum
date published: 2024-11-05

Sadico
type: MusicAlbum
date published: 2024-11-05
track: Sadico
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136490
  explicit: true
  by artist: Maria Spichers
  in album: Sadico
    type: MusicAlbum
    date published: 2024-11-05
  genre: dembow
  isrc code: QZW9K2474955
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T03:43:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0238f11ae3aef272052ffe791d96338b9b03f1c4d9a2d0f8ca55c2cc07de0fe7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2474955
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  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 0x0238f11ae3aef272052ffe791d96338b9b03f1c4d9a2d0f8ca55c2cc07de0fe7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZW9K2474955.
    date published: 2026-07-05T10:01:46Z
  audio: Sadico
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.952
    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: 0.694
    additional property: Energy
      type: PropertyValue
      value: 0.387
    additional property: Speechiness
      type: PropertyValue
      value: 0.333
    additional property: Acousticness
      type: PropertyValue
      value: 0.207
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.222
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.388
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.633
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Pa Atra
type: MusicAlbum
date published: 2024-11-11

Sativa
type: MusicAlbum
date published: 2024-11-18
track: Sativa
  type: MusicRecording
  duration: PT2M17S
  duration ms: 137247
  explicit: false
  by artist: Maria Spichers
  in album: Sativa
    type: MusicAlbum
    date published: 2024-11-18
  genre: dembow
  isrc code: QZW9L2427854
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T23:56:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xaaff62a6a9e8deb9f9a250a45ed28b1f8d3dd73efaf841dff47c28490ff03865
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958489
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958489
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2427854
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T04:13:26Z
  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 0xaaff62a6a9e8deb9f9a250a45ed28b1f8d3dd73efaf841dff47c28490ff03865. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZW9L2427854.
    date published: 2026-07-18T04:13:26Z
  audio: Sativa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.037
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.682
    additional property: Energy
      type: PropertyValue
      value: 0.844
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.351
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.117
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.297
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.745
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Chocame
type: MusicAlbum
date published: 2025-02-27

Tu Amiga
type: MusicAlbum
date published: 2025-03-01

Como Yo
type: MusicAlbum
date published: 2025-03-12

Sativa
type: MusicAlbum
date published: 2025-07-05

Tu Amiga
type: MusicAlbum
date published: 2025-07-17

No Me Vas a Olvidar
type: MusicAlbum
date published: 2025-10-03

Wow Pah
type: MusicAlbum
date published: 2025-11-09