thumb|Angela Hewitt at a concert in 2017 Angela Hewitt (born July 26, 1958) is a Canadian classical pianist. She is best known for her Bach interpretations. Career Hewitt was born in Ottawa, Ontario
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9189a19ac5cc29146dc83c70467e7374c0f505add61428e9ce47cbbf0416d029. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/408dd8b1-4eea-4ab0-a79a-ea0dae0878e1.json and https://artists.proofprofile.net/proofs/artist/408dd8b1-4eea-4ab0-a79a-ea0dae0878e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beethoven: 2 Cello Sonatas, Op. 102; Variations
Morgen, Op. 27 No. 4 (Arr. Reger for Piano)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711293a155a7ff36398c0dd8e175270e59e1d5f4877a2877a304726139265896. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAJY2134107.
7 Canciones populares españolas: No. 7, Polo (Arr. Halffter)
Love Songs - Piano Transcriptions Without Words
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250b29c05cee2f7297959151a149618836f9ace0060f917be45e5450a9aef6e4. 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/GBAJY2134121.
6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Theme
Beethoven & Friends: Classics by the Great Composers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7841ad5ae0e1a1de789e1599fd2d3e22be0862dd7da0aece2699a589a8eb6f66. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAJY2328038.
6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27a8d44796c8a106bc573893655efa79cd0120e356d07f90b2ddf76c3eab024. 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/GBAJY2328039.
6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989114f5a238e6578a06afab3fb319223db3f13c1b62a4dd0e5724e1962db9de. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAJY2328040.
6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5687eacd1b32ef6f0f7ed7352ee0acb32a33f07a5eecd8132eb02067fba0e94b. 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/GBAJY2328041.
6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1337bcd0e0fd19be11ff67872455f45dfa18550f479b2f152ad5c24ebca03. 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/GBAJY2328042.
6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055cf4b5b6557199025ebf0d0d8e7fe632f5d838075e9f3e83db64d77504e739. 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/GBAJY2328043.
6 Variations on "Nel cor più non mi sento" from "La molinara" by Paisiello, WoO 70: Var. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57866b715befe42d3446492a9f25ec5f49694ecfe22afa723584f63873bb1d7b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAJY2328044.