Autumn Nostalgie
type: MusicGroup
genre: black metal
popularity: 19
followers: 10997
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1b81da0574c1ad4d93553e7abc10d627430f1bd854ac7d7813805d9bf7259e6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953724
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953724
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8b8ae631-7c69-46fd-9dbc-c80f3de598f7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8b8ae631-7c69-46fd-9dbc-c80f3de598f7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8b8ae631-7c69-46fd-9dbc-c80f3de598f7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:43:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1b81da0574c1ad4d93553e7abc10d627430f1bd854ac7d7813805d9bf7259e6c","name":"Autumn Nostalgie","registered_at":"2026-06-14T19:09:22Z","symbol":"NIM0548648","token_address":"0xaa368cd5f0e19c959a28d8bb22941969e02ffb68","type":"artist","uuid":"8b8ae631-7c69-46fd-9dbc-c80f3de598f7"}
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 0x1b81da0574c1ad4d93553e7abc10d627430f1bd854ac7d7813805d9bf7259e6c. 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/8b8ae631-7c69-46fd-9dbc-c80f3de598f7.json and https://artists.proofprofile.net/proofs/artist/8b8ae631-7c69-46fd-9dbc-c80f3de598f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x1b81da0574c1ad4d93553e7abc10d627430f1bd854ac7d7813805d9bf7259e6c","name":"Autumn Nostalgie","registered_at":"2026-06-14T19:09:22Z","symbol":"NIM0548648","token_address":"0xaa368cd5f0e19c959a28d8bb22941969e02ffb68","type":"artist","uuid":"8b8ae631-7c69-46fd-9dbc-c80f3de598f7"}
album: Esse Est Percipi
  type: MusicAlbum
  date published: 2020-07-09
  track: Prologue
    type: MusicRecording
    duration: PT1M36S
    duration ms: 96992
    explicit: false
    by artist: Autumn Nostalgie
    in album: Esse Est Percipi
      type: MusicAlbum
      date published: 2020-07-09
    genre: black metal
    isrc code: QZFZ32102062
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T09:44:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x37b92ace92ff0a1485d2772b1d2f7ada45fb108d4fdb1856dbf1433bd425c55c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958276
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958276
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32102062
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T12:46:31Z
    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 0x37b92ace92ff0a1485d2772b1d2f7ada45fb108d4fdb1856dbf1433bd425c55c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:46:31Z), 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/QZFZ32102062.
      date published: 2026-07-16T12:46:31Z
    audio: Prologue
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.801
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.265
      additional property: Energy
        type: PropertyValue
        value: 0.046
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.943
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.835
      additional property: Liveness
        type: PropertyValue
        value: 0.075
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.109
      additional property: Loudness (dB)
        type: PropertyValue
        value: -31.51
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Eternal Joy On The Mountain Of Loneliness
    type: MusicRecording
    duration: PT6M10S
    duration ms: 370573
    explicit: false
    by artist: Autumn Nostalgie
    in album: Esse Est Percipi
      type: MusicAlbum
      date published: 2020-07-09
    genre: black metal
    isrc code: QZFZ32102065
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T10:36:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa2de998f2ecfaa61a3df07dbfeb676f7c1ee2171cd4b33e144a4b90d7dff69ce
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958153
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958153
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32102065
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T12:03:04Z
    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 0xa2de998f2ecfaa61a3df07dbfeb676f7c1ee2171cd4b33e144a4b90d7dff69ce. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZFZ32102065.
      date published: 2026-07-15T12:03:04Z
    audio: Eternal Joy On The Mountain Of Loneliness
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.941
      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: 0.344
      additional property: Energy
        type: PropertyValue
        value: 0.815
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.563
      additional property: Liveness
        type: PropertyValue
        value: 0.164
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.291
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: The Transcendence Of The Past Centuries
  track: Grey Horizons
  track: Epilogue
album: Alámerülés
album: Ataraxia
album: Gila Studio Live Session
album: Hüperion
album: Sarepta
album: Return to Nowhere
album: Metanoia

Loudness (dB)
type: PropertyValue
value: -7.646

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major

The Transcendence Of The Past Centuries
type: MusicRecording
duration: PT9M29S
duration ms: 569103
explicit: false
by artist: Autumn Nostalgie
in album: Esse Est Percipi
  type: MusicAlbum
  date published: 2020-07-09
genre: black metal
isrc code: QZFZ32102066
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T21:51:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x01fd512d5807c08fe1aa18f011e0592a307b1a091dbe8041047866dffd0c3b40
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/QZFZ32102066
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 0x01fd512d5807c08fe1aa18f011e0592a307b1a091dbe8041047866dffd0c3b40. 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/QZFZ32102066.
  date published: 2026-07-18T04:13:26Z
audio: The Transcendence Of The Past Centuries
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.283
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.169
  additional property: Energy
    type: PropertyValue
    value: 0.195
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.948
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.899
  additional property: Liveness
    type: PropertyValue
    value: 0.063
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.157
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Grey Horizons
type: MusicRecording
duration: PT5M37S
duration ms: 337841
explicit: false
by artist: Autumn Nostalgie
in album: Esse Est Percipi
  type: MusicAlbum
  date published: 2020-07-09
genre: black metal
isrc code: QZFZ32102067
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-12T21:51:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6995b3dbd4a3267602dbf2f5e5696948b4a76aa075693de550e05875738cdf0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957766
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957766
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32102067
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-12T22:25:04Z
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 0x6995b3dbd4a3267602dbf2f5e5696948b4a76aa075693de550e05875738cdf0c. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZFZ32102067.
  date published: 2026-07-12T22:25:04Z
audio: Grey Horizons
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.149
  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: 0.422
  additional property: Energy
    type: PropertyValue
    value: 0.801
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.021
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.851
  additional property: Liveness
    type: PropertyValue
    value: 0.335
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.787
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Epilogue
type: MusicRecording
duration: PT7M47S
duration ms: 467539
explicit: false
by artist: Autumn Nostalgie
in album: Esse Est Percipi
  type: MusicAlbum
  date published: 2020-07-09
genre: black metal
isrc code: QZFZ32102068
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T13:46:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0b0f0e67b38410c9dcf3cf95e26da01228d58c5740d61e18e7714fe7c45bcae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958563
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958563
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32102068
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T14:29:03Z
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 0xe0b0f0e67b38410c9dcf3cf95e26da01228d58c5740d61e18e7714fe7c45bcae. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZFZ32102068.
  date published: 2026-07-18T14:29:03Z
audio: Epilogue
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.733
  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: 0.203
  additional property: Energy
    type: PropertyValue
    value: 0.51
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.282
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.818
  additional property: Liveness
    type: PropertyValue
    value: 0.85
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.048
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.11
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Alámerülés
type: MusicAlbum
date published: 2021-09-02

Ataraxia
type: MusicAlbum
date published: 2021-10-22
track: Bevezetõ
  type: MusicRecording
  duration: PT1M18S
  duration ms: 78187
  explicit: false
  by artist: Autumn Nostalgie
  in album: Ataraxia
    type: MusicAlbum
    date published: 2021-10-22
  genre: black metal
  isrc code: QZNWV2120032
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T00:18:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x95efd13831a3dd072857f99913df4ee867c7d32ffc9452c872aafc088250900e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958800
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958800
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2120032
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T00:52:19Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95efd13831a3dd072857f99913df4ee867c7d32ffc9452c872aafc088250900e. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZNWV2120032.
    date published: 2026-07-20T00:52:19Z
  audio: Bevezetõ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.505
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.456
    additional property: Energy
      type: PropertyValue
      value: 0.291
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.9
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.897
    additional property: Liveness
      type: PropertyValue
      value: 0.089
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.105
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.92
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Alámerülés
  type: MusicRecording
  duration: PT4M22S
  duration ms: 262440
  explicit: false
  by artist: Autumn Nostalgie
  in album: Ataraxia
    type: MusicAlbum
    date published: 2021-10-22
  genre: black metal
  isrc code: QZNWV2120033
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T09:22:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd3ab714a9d9eb48168274f9e26d23092f6dc4c5d5003a6e804369fc6a82cfd16
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958276
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958276
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2120033
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T12:24:36Z
  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 0xd3ab714a9d9eb48168274f9e26d23092f6dc4c5d5003a6e804369fc6a82cfd16. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:24:36Z), 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/QZNWV2120033.
    date published: 2026-07-16T12:24:36Z
  audio: Alámerülés
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.968
    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: 0.403
    additional property: Energy
      type: PropertyValue
      value: 0.958
    additional property: Speechiness
      type: PropertyValue
      value: 0.075
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.654
    additional property: Liveness
      type: PropertyValue
      value: 0.176
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.365
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.906
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Memento Vivere
  type: MusicRecording
  duration: PT7M55S
  duration ms: 475320
  explicit: false
  by artist: Autumn Nostalgie
  in album: Ataraxia
    type: MusicAlbum
    date published: 2021-10-22
  genre: black metal
  isrc code: QZNWV2120034
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T15:45:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcdba4f57085f2a70b89e95cd68874394c4fff37c5e20fadd7f43843b463e771d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958601
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958601
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Memento Vivere
track: The Abyss of Realization
track: Ataraxia

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2120034

OTSTimestamp
type: PropertyValue
value: 2026-07-18T19:27:02Z

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 0xcdba4f57085f2a70b89e95cd68874394c4fff37c5e20fadd7f43843b463e771d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNWV2120034.
date published: 2026-07-18T19:27:02Z

Memento Vivere
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 129.948
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.434
additional property: Energy
  type: PropertyValue
  value: 0.899
additional property: Speechiness
  type: PropertyValue
  value: 0.061
additional property: Acousticness
  type: PropertyValue
  value: 0
additional property: Instrumentalness
  type: PropertyValue
  value: 0.181
additional property: Liveness
  type: PropertyValue
  value: 0.335
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.144
additional property: Loudness (dB)
  type: PropertyValue
  value: -9.213
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

The Abyss of Realization
type: MusicRecording
duration: PT5M27S
duration ms: 327067
explicit: false
by artist: Autumn Nostalgie
in album: Ataraxia
  type: MusicAlbum
  date published: 2021-10-22
genre: black metal
isrc code: QZNWV2120035
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T15:24:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2fbe721bcec3f254722fd7090afeab63a5201149398d63a5233765379c65cfdc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956826
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956826
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2120035
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T19:27:56Z
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 0x2fbe721bcec3f254722fd7090afeab63a5201149398d63a5233765379c65cfdc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWV2120035.
  date published: 2026-07-05T19:27:56Z
audio: The Abyss of Realization
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.999
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.35
  additional property: Energy
    type: PropertyValue
    value: 0.803
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.461
  additional property: Liveness
    type: PropertyValue
    value: 0.359
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.164
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.307
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ataraxia
type: MusicRecording
duration: PT7M44S
duration ms: 464186
explicit: false
by artist: Autumn Nostalgie
in album: Ataraxia
  type: MusicAlbum
  date published: 2021-10-22
genre: black metal
isrc code: QZNWV2120037
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T21:10:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x311c6e20ffb3adb0b2f008b9cf5ed3102a55531f86d24aeb49f7469585ca0e72
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956857
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956857
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2120037
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:26:17Z
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 0x311c6e20ffb3adb0b2f008b9cf5ed3102a55531f86d24aeb49f7469585ca0e72. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNWV2120037.
  date published: 2026-07-06T01:26:17Z
audio: Ataraxia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.044
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.403
  additional property: Energy
    type: PropertyValue
    value: 0.932
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.031
  additional property: Liveness
    type: PropertyValue
    value: 0.188
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.215
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.615
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Gila Studio Live Session
type: MusicAlbum
date published: 2023-03-04

Hüperion
type: MusicAlbum
date published: 2023-05-10
track: Hüperion
  type: MusicRecording
  duration: PT8M45S
  duration ms: 525553
  explicit: false
  by artist: Autumn Nostalgie
  in album: Hüperion
    type: MusicAlbum
    date published: 2023-05-10
  genre: black metal
  isrc code: QZK6N2385821
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T16:16:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x706321fe49859f38f44e16eb5a5b02ce7a904e2d1595a1d7e315a2293d775df1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956826
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956826
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2385821
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T19:27:56Z
  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 0x706321fe49859f38f44e16eb5a5b02ce7a904e2d1595a1d7e315a2293d775df1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6N2385821.
    date published: 2026-07-05T19:27:56Z
  audio: Hüperion
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.079
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.142
    additional property: Energy
      type: PropertyValue
      value: 0.682
    additional property: Speechiness
      type: PropertyValue
      value: 0.054
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.866
    additional property: Liveness
      type: PropertyValue
      value: 0.407
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.096
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.749
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Sarepta
type: MusicAlbum
date published: 2023-06-08

Return to Nowhere
type: MusicAlbum
date published: 2025-04-08

Metanoia
type: MusicAlbum
date published: 2025-06-06
track: Introduction
  type: MusicRecording
  duration: PT1M20S
  duration ms: 80500
  explicit: false
  by artist: Autumn Nostalgie
  in album: Metanoia
    type: MusicAlbum
    date published: 2025-06-06
  genre: black metal
  isrc code: QZTB52525434
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T07:42:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc139f9ec5cafaa162b02cc4bf8aef567fb236e3cd3fabb92bc644b26aab6313f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956790
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956790
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB52525434
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T12:31:54Z
  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 0xc139f9ec5cafaa162b02cc4bf8aef567fb236e3cd3fabb92bc644b26aab6313f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTB52525434.
    date published: 2026-07-05T12:31:54Z
  audio: Introduction
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.289
    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: 0.335
    additional property: Energy
      type: PropertyValue
      value: 0.307
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.76
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.874
    additional property: Liveness
      type: PropertyValue
      value: 0.095
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.034
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.027
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Return to Nowhere
  type: MusicRecording
  duration: PT7M19S
  duration ms: 439469
  explicit: false
  by artist: Autumn Nostalgie
  in album: Metanoia
    type: MusicAlbum
    date published: 2025-06-06
  genre: black metal
  isrc code: QZK6F2599833
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T12:31:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd969d661cd9e7c59deb0587db2ec2a30e697846c755b3214a50a79fcaccd35cd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2599833
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  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 0xd969d661cd9e7c59deb0587db2ec2a30e697846c755b3214a50a79fcaccd35cd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6F2599833.
    date published: 2026-07-05T01:12:41Z
  audio: Return to Nowhere
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.945
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.331
    additional property: Energy
      type: PropertyValue
      value: 0.888
    additional property: Speechiness
      type: PropertyValue
      value: 0.113
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.12
    additional property: Liveness
      type: PropertyValue
      value: 0.188
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.047
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.383
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Shrouded by Fading Years
  type: MusicRecording
  duration: PT6M31S
  duration ms: 391467
  explicit: false
  by artist: Autumn Nostalgie
  in album: Metanoia
    type: MusicAlbum
    date published: 2025-06-06
  genre: black metal
  isrc code: QZTB52525435
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T08:00:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x75af6adcc95929397e0254b03f906f500fef572bb159171c5a109670c0add9a3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Shrouded by Fading Years
track: Interludium
track: Metanoia
track: Remain in the Depths of Blind Darkness
track: Silent Gravestones
track: There is Still Snow, Hypomanie

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB52525435

OTSTimestamp
type: PropertyValue
value: 2026-07-04T10:04:33Z

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 0x75af6adcc95929397e0254b03f906f500fef572bb159171c5a109670c0add9a3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTB52525435.
date published: 2026-07-04T10:04:33Z

Shrouded by Fading Years
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 140.116
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.287
additional property: Energy
  type: PropertyValue
  value: 0.706
additional property: Speechiness
  type: PropertyValue
  value: 0.061
additional property: Acousticness
  type: PropertyValue
  value: 0
additional property: Instrumentalness
  type: PropertyValue
  value: 0.04
additional property: Liveness
  type: PropertyValue
  value: 0.113
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.076
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.264
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Minor

Interludium
type: MusicRecording
duration: PT1M29S
duration ms: 89195
explicit: false
by artist: Autumn Nostalgie
in album: Metanoia
  type: MusicAlbum
  date published: 2025-06-06
genre: black metal
isrc code: QZTB52525436
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T08:02:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x16cd7b2fd87032a89fa068295704c672e139008b55f1b03be48bc1283a96e51c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956776
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956776
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB52525436
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T10:59:37Z
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 0x16cd7b2fd87032a89fa068295704c672e139008b55f1b03be48bc1283a96e51c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTB52525436.
  date published: 2026-07-05T10:59:37Z
audio: Interludium
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 81.221
  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: 0.198
  additional property: Energy
    type: PropertyValue
    value: 0.335
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.244
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.77
  additional property: Liveness
    type: PropertyValue
    value: 0.084
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.582
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Metanoia
type: MusicRecording
duration: PT5M7S
duration ms: 307846
explicit: false
by artist: Autumn Nostalgie
in album: Metanoia
  type: MusicAlbum
  date published: 2025-06-06
genre: black metal
isrc code: QZTB52525437
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T22:40:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7094d55be2774dcb905960d3511cd79d8a7a2d8f5069e81801a371614fbe1989
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956738
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956738
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB52525437
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T04:47:21Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7094d55be2774dcb905960d3511cd79d8a7a2d8f5069e81801a371614fbe1989. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTB52525437.
  date published: 2026-07-05T04:47:21Z
audio: Metanoia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.975
  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: 0.367
  additional property: Energy
    type: PropertyValue
    value: 0.87
  additional property: Speechiness
    type: PropertyValue
    value: 0.097
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.682
  additional property: Liveness
    type: PropertyValue
    value: 0.175
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.116
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.543
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Remain in the Depths of Blind Darkness
type: MusicRecording
duration: PT7M51S
duration ms: 471298
explicit: false
by artist: Autumn Nostalgie
in album: Metanoia
  type: MusicAlbum
  date published: 2025-06-06
genre: black metal
isrc code: QZTB52525438
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T07:00:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcff330a56d7dce5047d3f87f604bb0b5460eb790ad8eeb44333dd4afec5505e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956776
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956776
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB52525438
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T10:59:37Z
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 0xcff330a56d7dce5047d3f87f604bb0b5460eb790ad8eeb44333dd4afec5505e2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTB52525438.
  date published: 2026-07-05T10:59:37Z
audio: Remain in the Depths of Blind Darkness
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.988
  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: 0.466
  additional property: Energy
    type: PropertyValue
    value: 0.834
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.001
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.478
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.127
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Silent Gravestones
type: MusicRecording
duration: PT7M19S
duration ms: 439252
explicit: false
by artist: Autumn Nostalgie
in album: Metanoia
  type: MusicAlbum
  date published: 2025-06-06
genre: black metal
isrc code: QZTB52525439
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T00:32:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22ef251d094510b714da99665b112957d505e4b1e10a743dee8c2f25aa72c948
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958802
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958802
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB52525439
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T01:04:02Z
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 0x22ef251d094510b714da99665b112957d505e4b1e10a743dee8c2f25aa72c948. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZTB52525439.
  date published: 2026-07-20T01:04:02Z
audio: Silent Gravestones
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 150.352
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.115
  additional property: Energy
    type: PropertyValue
    value: 0.657
  additional property: Speechiness
    type: PropertyValue
    value: 0.083
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.163
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.399
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

There is Still Snow, Hypomanie
type: MusicRecording
duration: PT4M14S
duration ms: 254042
explicit: false
by artist: Autumn Nostalgie
in album: Metanoia
  type: MusicAlbum
  date published: 2025-06-06
genre: black metal
isrc code: QZTB52525440
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T09:55:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefb28352ee80a55855afbd72f52172ab1309dd15b91ab8b01ebe6c330328795e
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/QZTB52525440
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 0xefb28352ee80a55855afbd72f52172ab1309dd15b91ab8b01ebe6c330328795e. 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/QZTB52525440.
  date published: 2026-07-05T10:01:46Z
audio: There is Still Snow, Hypomanie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.505
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.262
  additional property: Energy
    type: PropertyValue
    value: 0.75
  additional property: Speechiness
    type: PropertyValue
    value: 0.078
  additional property: Acousticness
    type: PropertyValue
    value: 0.001
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.374
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.674
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major