Natalie Clein (born Poole, Dorset) is a British classical cellist. Her mother is a professional violinist. Her sister is the actress Louisa Clein. Early life and education Clein started playing the
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88856592cae0cbdf338285899e7658752686d425f3d5006764d2825ed198f518. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e38856b8-38f3-4e5b-a497-402ee23f7225.json and https://artists.proofprofile.net/proofs/artist/e38856b8-38f3-4e5b-a497-402ee23f7225.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74a80fa9cf824c809df5b2883aa13e612d49da46b244affe111a5c2e8853580. 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/GBBBA0341110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86363e5985b8bb634499054ac7c09290fa6f2fa60ac76791d96269589095c68e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBBBA0341120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9022a8b1c40425f4de00c3c70d14bf206b7c10c95f314ebcfd4fa9ea375dd3eb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBBBA0341130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4855ff2e0c058aa69785ddbc783a809adf9b222651681455de6ede09155f3ed2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBBBA0341140.
The Protecting Veil: The Dormition Of The Mother Of God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc4a15c9ceb7708f6e37e993b40ddee134c742edc07498860d5d6c6d8dd8ca3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBBA0341150.
The Protecting Veil: The Protecting Veil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54751fafb99b87bc9040a00ea6070ab62b85944c1089686c36c4bacd4e1784eb. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBBBA0341160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339f92c2b035e7c4dbb5073beacc97db460f48c97112e6f222ca42a486b02e93. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/GBBBA0341170.
The Veil of the Temple: What God Is We Do Not Know
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150f40b8c1cf49900f7f0880b50b0be2a466bae3235de6f1fc066633f97681d5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBBA0341180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190c83a8e5d803424fcfea562e0cf26b97b87f8293352a2c171bf6121c6b414a. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/GBBBA0341190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa797a1cd0366b363f06c06ca77d36ff875ab11a67fb03ee1a78a619c4d962658. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBBBA0341200.
God Is With Us (A Christmas Proclamation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0585f4c77045cb38086bb9d9ad7d967f12c619de2a73346f7a1daf8591bb3ad8. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/GBBBA0341210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cdba3feff955c16d4b1d0652522ef0d47c3a5169d39947fc8e800c6d7f54d8. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBBBA0341220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47213546d2249b835340c6546a9f86567a515e0bf8de217aae53f4e0640e5979. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBBBA0341230.
Schubert: Arpeggione Sonata in A Minor, D. 821: I. Allegro moderato (Excerpt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0be1c81b0c878eb839ac7bd7d43dd42d1e49f4c58fb43664cace05185c7e33. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBAYC0402690.
Cello Sonata No. 2 in F Major, Op. 99: II. Adagio affettuoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732fc126c0bee199d090ffd7959e99dd9582ada28333304c4774394ff2c944c0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBAYC0401232.
Elgar: Cello Concerto in E Minor, Op. 85: I. Adagio - Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4448550febc54e3e3d01e47b3b2f37f0bcc22df33db3ad03cd721948c0ea80ca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYD0700301.
Elgar: Cello Concerto in E Minor, Op. 85: II. Lento - Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dc1f690e99caa960218fbec1121e8cd386d1a3f49c5caf51b4c8ad5ff82483. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYD0700302.
Elgar: Cello Concerto in E Minor, Op. 85: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809cf201304f09e4f2d7ae631c426b99c6d10536dab5f936333e027eead11d2d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYD0700303.
Elgar: Cello Concerto in E Minor, Op. 85: IV. Allegro - Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e313400ce901249f741ceafed8eb71e1898a7594037ddc5a3595265a44bcae. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBAYD0700304.
Elgar / Arr. Milone for Cello and Orchestra: In Moonlight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631a3f040c6022b441b983385588d986f347b213234e0648b8114d5f6263a60b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYD0700308.