Svetoslav Obretenov Bulgarian Choir
type: MusicGroup
genre: gregorian chant
popularity: 11
followers: 431
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c959842a-93d4-4b48-914c-7cd35bfe20a9
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additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2061753774aae020a64951c5cce405314e98b64361b01cbdd132dc77c80a3ef1. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c959842a-93d4-4b48-914c-7cd35bfe20a9.json and https://artists.proofprofile.net/proofs/artist/c959842a-93d4-4b48-914c-7cd35bfe20a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T10:40:45Z
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album: Републико наша, здравей
  type: MusicAlbum
  date published: 1961-07-03
album: Химн на Народна Република България
  type: MusicAlbum
  date published: 1964-12-24
album: Химн на Народна Република България
  type: MusicAlbum
  date published: 1965-03-03
album: Alessandro Scarlatti: A psalm from the Motetti per la Quaresima - Hans Leo Hassler: Tanzen und springen
  type: MusicAlbum
  date published: 1966-09-30
album: Концерт на Българската хорова капела Светослав Обретенов
  type: MusicAlbum
  date published: 1969-02-07
album: Православна литургия
  type: MusicAlbum
  date published: 1969-08-18
album: Хорови песни от български композитори
  type: MusicAlbum
  date published: 1971-04-15
album: Химн на Народна Република България
  type: MusicAlbum
  date published: 1971-06-24
album: Palestrina: Missa Brevis - Bach: Motet Jesu, meine Freude, BWV 227
  type: MusicAlbum
  date published: 1971-07-13
album: Песни за Георги Димитров
  type: MusicAlbum
  date published: 1972-08-10
album: Добри Христов: Хорови песни
  type: MusicAlbum
  date published: 1972-10-18
album: Живият вожд
  type: MusicAlbum
  date published: 1972-12-10
album: Русские и украинские распевы XVI-XVII в.
  type: MusicAlbum
  date published: 1973-10-23
album: Стари руски песни
  type: MusicAlbum
  date published: 1973-12-04
album: Вечерний звон
  type: MusicAlbum
  date published: 1975-03-06
album: Възпев на БКП
  type: MusicAlbum
  date published: 1981-06-22
album: Църковнославянски песнопения
  type: MusicAlbum
  date published: 1988-12-05
album: Църковно - славянски песнопения
  type: MusicAlbum
  date published: 1991-07-08
  track: Отче наш
  track: Тебе поем
album: Slavonic Orthodox Liturgy
  type: MusicAlbum
  date published: 1995-01-01

Отче наш
type: MusicRecording
duration: PT3M45S
duration ms: 225643
explicit: false
by artist: Svetoslav Obretenov Bulgarian Choir
in album: Църковно - славянски песнопения
  type: MusicAlbum
  date published: 1991-07-08
genre: gregorian chant
isrc code: BGA672259710
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA672259710
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07790aad219680ff424929a53ddb8602a751a4f39ab12ee1fc6f4302ed505ea. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BGA672259710.
  date published: 2026-07-02T03:30:09Z
audio: Отче наш
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 103.979
  additional property: Musical Key
    type: PropertyValue
    value: 0
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.973
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.873
  additional property: Key Name
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    value: C
  additional property: Mode Name
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Тебе поем
type: MusicRecording
duration: PT2M35S
duration ms: 155727
explicit: false
by artist: Svetoslav Obretenov Bulgarian Choir
in album: Църковно - славянски песнопения
  type: MusicAlbum
  date published: 1991-07-08
genre: gregorian chant
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52f5189dbf25b723535bb415efbd9c3fef9487f40704d7700d0227a264e247e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BGA672259722.
  date published: 2026-07-31T04:14:58Z
audio: Тебе поем
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 105.223
  additional property: Musical Key
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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
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
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    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.936
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.447
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: BGA672259722
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA672259722
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960344
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960344
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T04:14:58+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch