Nina Bodnar (born 1961) is an American concert violinist. Early life and education Bodnar studied with Henri Temianka. Bodnar won the 1981 Thibaud International Competition in Paris. Career Bodnar
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 0x7fa6b24238cdc98ccae4fc3c31c591da9270071b979810861985c041a3aee018. Chain 2 (Bitcoin): anchored in block 953982 (2026-06-16T17:42:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cb953c0-59d1-4201-8976-5aebdfac06dd.json and https://artists.proofprofile.net/proofs/artist/2cb953c0-59d1-4201-8976-5aebdfac06dd.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe602ae2c10b5f18b09a659350de7a106541f60f23b644d02a7d44c3c15319055. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USUW61050025.
L'enfance du Christ, Op. 25: The Shepherds' Farewell (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d2d562ba3da925dbffe6cf3c29b39594087ec4e3d58d18bc9605682b0e9e0f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUW61050027.
In the Bleak Midwinter (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53073f54823e46bad0688fe5cb0f8af2bc975a348221e643916bfbb5d04fb3a4. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USUW61050029.
Once in Royal David's City (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c671448bc8407fb8d0e26718bb0e8aa8f277764bbef4295c0e2f0073f136266. 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/USUW61050033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91602dd4cdd5d487f6965fadb8e541a9bb313e2d535d0ab3f845144e984652a2. 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/USUW61050042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fdb5e73b2b6afd5fbd132a0ec06ff2182dcde3cea30add2f54ce0395a46e19. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USUW61050026.
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
Il est ne le divin enfant (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759054c9cf12ef7e6a69ed345892ef8c00b0274b6112e6e4277363a4bd4eb609. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USUW61050028.
Was mir behagt, ist nur die muntre Jagd!, BWV 208, "Hunt Cantata" (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5800fe6726799c501fc1a18baa6337a6f97a10fa24f20b34fc4da523df007840. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/USUW61050030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18397c71e82aa6069d76553ce2cde1e44752ee3b2b117bf14230f4084219b1f6. 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/USUW61050031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a29d4788747f3b70b599c6c35f5e207b445e98d5f5b43656bea7ec0dc30655. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USUW61050032.
Ding Dong Merrily on High (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dbbcf1c57fc951542d1b88d5e5b64b49934e37ddc6878cc5a56242a18dc3e8. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USUW61050034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ad029301ad1337df4fafe1f657d9ba9ade9fa9f9eff95a84e9370ec637446c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USUW61050035.
Ellens Gesang III (Ave Maria!), Op. 56, No. 6, D. 839, "Hymne an die Jungfrau" (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc278afbdff2265c4f48f4bde19c9c63a953265da2e7f88540f5193c3eddfee9b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USUW61050036.
Herz und Mund und Tat und Leben, BWV 147 (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b92575d339bc485f554e80fca87d1244f4b3e475a2c05f8b77822ac59d490b. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USUW61050037.
The Eastern Star so Bright and Clear (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20697b6847354877e9fb19b13fd745779a206a47df08bb837a510523534f9cb5. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USUW61050038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1608876502e8ba41aef675bac8f680495d3387d9c137e5f3b23d8d8fd63235ea. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USUW61050039.
Innsbruck, ich muss dich lassen (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc1c630363d2fa3ba711fbf35ff2e2ccb23edcc9f931ee8160d4456a390bfa4. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USUW61050040.
He Shall Feed His Flock (arr. A. Delmoni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780d06989a8f02fc0bd8c72ca3d079c0fb2905e8e693a9cab8b1941adc2472c9. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USUW61050041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32bfb885b170b5d500766af144e0e1ad298e5c9a6beafe9d6e84b25a88aa3b2. 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/USUW61050043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68369002ccdf092f2b7705723ba0cb41f967f9186216fe85f72ca9cf27f1e9f6. 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/USUW61050044.