Katja Petri
type: MusicGroup
popularity: 23
followers: 5920
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-12T19:24:56Z
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album: Heavy
  type: MusicAlbum
  date published: 2000
album: Covers Volume 1
  type: MusicAlbum
  date published: 2011
album: Covers Vol 1
  type: MusicAlbum
  date published: 2011-04-07
album: The A Team
  type: MusicAlbum
  date published: 2011-04-19
album: Call My Name
  type: MusicAlbum
  date published: 2011-05-09
album: Science & Faith
  type: MusicAlbum
  date published: 2011-06-02
album: Moves Like Jagger
  type: MusicAlbum
  date published: 2011-08-03
album: Marry You
  type: MusicAlbum
  date published: 2011-08-11
album: Betty
  type: MusicAlbum
  date published: 2011-08-19
album: Titanium
  type: MusicAlbum
  date published: 2011-09-08
album: Geronimo
  type: MusicAlbum
  date published: 2011-11-13
album: Charlie Brown
  type: MusicAlbum
  date published: 2012-03-07
album: Lego House
  type: MusicAlbum
  date published: 2012-03-07
album: Count On Me
  type: MusicAlbum
  date published: 2012-03-15
album: Wide Awake
  type: MusicAlbum
  date published: 2012-06-04
album: Blow Me (One Last Kiss)
  type: MusicAlbum
  date published: 2012-07-11
album: Candy (Acoustic Version)
  type: MusicAlbum
  date published: 2012-10-29
album: Locked Out Of Heaven
  type: MusicAlbum
  date published: 2012-11-13
album: La La La (Acoustic Version)
  type: MusicAlbum
  date published: 2013-07-12
album: Wake Me Up!
  type: MusicAlbum
  date published: 2013-08-31
album: Story Of My Life
  type: MusicAlbum
  date published: 2013-10-29
album: Let It Be Christmas!
  type: MusicAlbum
  date published: 2013-11-24
album: Covers Volume 2
  type: MusicAlbum
  date published: 2014-09-25
album: Covers Volume 2
  type: MusicAlbum
  date published: 2014-09-25
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      type: MusicAlbum
      date published: 2014-09-25
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    additional property: OTSVerifyInstructions
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      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
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      date published: 2026-07-03T19:59:51Z
    audio: La La La (Acoustic Version)
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  track: All About That Bass (Acoustic Version)
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    by artist: Katja Petri
    in album: Covers Volume 2
      type: MusicAlbum
      date published: 2014-09-25
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    subject of: OpenTimestamps Proof of Existence
    audio: All About That Bass (Acoustic Version)
  track: Wake Me Up (Acoustic Version)
  track: Wide Awake (Acoustic Version)
album: I'm not the only one (Acoustic Version)
album: Say you love me (Acoustic Version)
album: Welcome to New York (Acoustic Version)
album: Let it be Christmas! Part 2
album: Four Five Seconds
album: Believe
album: Headlights (acoustic version)
album: Traffic Lights (Acoustic Version)
album: Can't feel my face (Acoustic Version)
album: What do you mean?
album: Stitches (acoustic version)
album: How Will I Know (Acoustic Version)
album: Good good father (acoustic version)
album: Girls Talk Boys (Acoustic Version)
album: Rise
album: Still Into You
album: Für immer ab jetzt

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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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value: 2026-07-13T19:36:39Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca94759105ece388b57cf1bb6968dce79b636336f990d277fb1882dafd6c9b3c. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USE830937181.
date published: 2026-07-13T19:36:39Z

All About That Bass (Acoustic Version)
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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Wake Me Up (Acoustic Version)
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duration: PT3M48S
duration ms: 228833
explicit: false
by artist: Katja Petri
in album: Covers Volume 2
  type: MusicAlbum
  date published: 2014-09-25
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55582a542adc8e45fc512a9f8b37d52e7dcd52acb4a22ee2eb1709fa2c353ba. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USE830937184.
  date published: 2026-07-19T07:14:39Z
audio: Wake Me Up (Acoustic Version)
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  additional property: Danceability
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Wide Awake (Acoustic Version)
type: MusicRecording
duration: PT3M40S
duration ms: 220800
explicit: false
by artist: Katja Petri
in album: Covers Volume 2
  type: MusicAlbum
  date published: 2014-09-25
isrc code: USE830937186
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda5f2c62bf24a48819a17f562454986391128968d88ea38e7d6cf03d2b6f819. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USE830937186.
  date published: 2026-07-13T19:36:39Z
audio: Wide Awake (Acoustic Version)
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I'm not the only one (Acoustic Version)
type: MusicAlbum
date published: 2014-10-07

Say you love me (Acoustic Version)
type: MusicAlbum
date published: 2014-10-22

Say you love me (Acoustic Version)
type: MusicAlbum
date published: 2014-10-22

Welcome to New York (Acoustic Version)
type: MusicAlbum
date published: 2014-10-29
track: Welcome to New York (Acoustic Version)
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b87c12a9a5400c679151f280153cf104fd526322e1082efbc758f15819de43b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USE830942688.
    date published: 2026-07-03T23:28:02Z
  audio: Welcome to New York (Acoustic Version)
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Welcome to New York (Acoustic Version)
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Let it be Christmas! Part 2
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date published: 2014-11-24

Let it be Christmas! Part 2
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Four Five Seconds
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Four Five Seconds
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date published: 2015-02-13

Believe
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Believe
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Headlights (acoustic version)
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Headlights (acoustic version)
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Traffic Lights (Acoustic Version)
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Traffic Lights (Acoustic Version)
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date published: 2015-06-01

Can't feel my face (Acoustic Version)
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Can't feel my face (Acoustic Version)
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What do you mean?
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What do you mean?
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date published: 2015-09-01

Stitches (acoustic version)
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Stitches (acoustic version)
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date published: 2016-01-25

How Will I Know (Acoustic Version)
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How Will I Know (Acoustic Version)
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date published: 2016-05-03

Good good father (acoustic version)
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date published: 2016-07-05

Good good father (acoustic version)
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date published: 2016-07-05

Girls Talk Boys (Acoustic Version)
type: MusicAlbum
date published: 2016-07-14

Rise
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date published: 2016-07-19

Rise
type: MusicAlbum
date published: 2016-07-19

Still Into You
type: MusicAlbum
date published: 2021-01-14

Für immer ab jetzt
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date published: 2021-03-01