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type: MusicGroup
genre: choral
description: Katherine May (born 18 September 1977), also writing as Katie May and Betty Herbert, is a British author and podcaster. Her writing includes memoirs (Wintering, Enchantment and The Electricity of Ever
popularity: 2
followers: 39
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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: 2026-06-21T07:29:20Z
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album: Invernando
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  date published: 2021-11-26
track: Hymn to St. Cecilia, Op. 27: Blessed Cecilia, appear in visions
track: Hymn to St. Cecilia, Op. 27: O dear white children
track: Hymn to St. Cecilia, Op. 27: In a garden shady this holy lady
track: Hymn to St. Cecilia, Op. 27: I Cannot Grow
track: Hymn to St. Cecilia, Op. 27: O ear whose creatures

Hymn to St. Cecilia, Op. 27: Blessed Cecilia, appear in visions
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duration: PT0M34S
duration ms: 34560
explicit: false
by artist: Benjamin Britten
by artist: The Choir Of Trinity College, Cambridge
by artist: Richard Marlow
by artist: Elizabeth Atherton
by artist: Marie-Claire Brookshaw
by artist: Katherine May
in album: Britten/Ceremony Of Carols
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  date published: 1995-12-29
popularity: 0
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Hymn to St. Cecilia, Op. 27: Blessed Cecilia, appear in visions
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Hymn to St. Cecilia, Op. 27: O dear white children
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by artist: Benjamin Britten
by artist: The Choir Of Trinity College, Cambridge
by artist: Richard Marlow
by artist: Elizabeth Atherton
by artist: Marie-Claire Brookshaw
by artist: Katherine May
in album: Britten/Ceremony Of Carols
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popularity: 0
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Hymn to St. Cecilia, Op. 27: O dear white children
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Hymn to St. Cecilia, Op. 27: In a garden shady this holy lady
type: MusicRecording
duration: PT2M0S
duration ms: 120400
explicit: false
by artist: Benjamin Britten
by artist: The Choir Of Trinity College, Cambridge
by artist: Richard Marlow
by artist: Elizabeth Atherton
by artist: Marie-Claire Brookshaw
by artist: Katherine May
in album: Britten/Ceremony Of Carols
  type: MusicAlbum
  date published: 1995-12-29
popularity: 1
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:23:33Z
audio: Hymn to St. Cecilia, Op. 27: In a garden shady this holy lady
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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

Hymn to St. Cecilia, Op. 27: I Cannot Grow
type: MusicRecording
duration: PT1M16S
duration ms: 76840
explicit: false
by artist: Benjamin Britten
by artist: The Choir Of Trinity College, Cambridge
by artist: Richard Marlow
by artist: Elizabeth Atherton
by artist: Marie-Claire Brookshaw
by artist: Katherine May
in album: Britten/Ceremony Of Carols
  type: MusicAlbum
  date published: 1995-12-29
popularity: 0
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T21:35:24Z
audio: Hymn to St. Cecilia, Op. 27: I Cannot Grow
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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

Hymn to St. Cecilia, Op. 27: Blessed Cecilia, appear in visions
type: MusicRecording
duration: PT0M38S
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explicit: false
by artist: Benjamin Britten
by artist: The Choir Of Trinity College, Cambridge
by artist: Richard Marlow
by artist: Elizabeth Atherton
by artist: Marie-Claire Brookshaw
by artist: Katherine May
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popularity: 0
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Hymn to St. Cecilia, Op. 27: Blessed Cecilia, appear in visions
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additional property: OTSTimestamp
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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

Hymn to St. Cecilia, Op. 27: O ear whose creatures
type: MusicRecording
duration: PT1M23S
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explicit: false
by artist: Benjamin Britten
by artist: The Choir Of Trinity College, Cambridge
by artist: Richard Marlow
by artist: Elizabeth Atherton
by artist: Marie-Claire Brookshaw
by artist: Katherine May
in album: Britten/Ceremony Of Carols
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popularity: 0
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: Hymn to St. Cecilia, Op. 27: O ear whose creatures
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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

Hymn to St. Cecilia, Op. 27: Blessed Cecilia, appear in visions
type: MusicRecording
duration: PT0M59S
duration ms: 59440
explicit: false
by artist: Benjamin Britten
by artist: The Choir Of Trinity College, Cambridge
by artist: Richard Marlow
by artist: Elizabeth Atherton
by artist: Marie-Claire Brookshaw
by artist: Katherine May
in album: Britten/Ceremony Of Carols
  type: MusicAlbum
  date published: 1995-12-29
popularity: 0
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c485b6047434bb872d7b590caa2d5705efa0480c8500369f3c39887fbe6661. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBARU9600107.
  date published: 2026-07-31T05:17:02Z
audio: Hymn to St. Cecilia, Op. 27: Blessed Cecilia, appear in visions
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  additional property: Key Name
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    value: Ab
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isrc code: GBARU9600107
additional property: CopyrightID
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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 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