Ana Vidović (born 8 November 1980) is a Croatian classical guitarist. A guitarist child prodigy, she has won a number of prizes and international competitions all over the world. Early life Vidović w
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 0x2796545c66ef83959a38828087b9ec9ae787581bd3f12056621ccc4d86afcc05. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6b8cc05-4bb8-4ec6-9939-79719652328a.json and https://artists.proofprofile.net/proofs/artist/f6b8cc05-4bb8-4ec6-9939-79719652328a.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 0x1c6d32a38351027c03d57a0025de58683187caf894299e4a3d266b58d2158141. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/HRA049862993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f98b5d7de44ff3fafec24df951445542c9c831718cb4e6e32113a3eb73eacc0. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/HRA049862994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99029806a44ddde7706a9fa1136650582e36d780508845898c5005250b6bfbd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/HRA049862995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8e250e0fb678072bba489e7af64155f2043abada64e80217222ab7e2aa5715. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/HRA049862996.
J. S. Bach: Violin Sonata No. 2 in A minor, BWV 1003, Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07822dc45ab536c8412feab94db1e825ce9005d60e1e818b5412a6c5b14c1b8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:49:13Z), 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/HRA049836410.
J. S. Bach: Violin Sonata No. 2 in A minor, BWV 1003, Fuga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd30c80c6f607f0a8a40eeb0ee6c54b0e478ca3aefc5292fcd43675cf958f70. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/HRA049839479.
J. S. Bach: Violin Sonata No. 2 in A minor, BWV 1003, Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b48d4d88b479dd400343ffdfb8416e57c0359dc3d689747664d05fa7030f00c. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:27:47Z), 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/HRA049839480.
J. S. Bach: Violin Sonata No. 2 in A minor, BWV 1003, Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe093e9c5fb4b60ef9c5cfa910c0827ea61d2cfaa4f6852c1a488e74e155e2f77. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/HRA049839481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740f357582aa26ac093a267d7c3f89b3dca9a4b79ca6b991c6b0c48a40db90fc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/HRA049839484.
Gorgeous Guitar: Best Loved Classical Guitar Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ed3794681471b920e3f77b2d6915410be8a4d80901683f7b2e294a8015f130. 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/HKI199945312.
Lute Partita in E Major, BWV 1006a (arr. W. Despalj): I. Preludio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c75ce1dcbb51c165e0f5fb1dee8bebba03a3e3a01aefac337ccb7686a74da7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKI199945301.
Lute Partita in E Major, BWV 1006a (arr. W. Despalj): II. Loure
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56714f3dc207968cdd79522c1bcfae6aa896f654cc75a86e0813731350f541f. 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/HKI199945302.
Lute Partita in E Major, BWV 1006a (arr. W. Despalj): III. Gavotte en rondeau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af284a54bf1ac50c4a7b2a657bb0a6dc1f2829a8205456109fc152f08ccdaf4. 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/HKI199945303.
Lute Partita in E Major, BWV 1006a (arr. W. Despalj): IV. Menuett I and Menuett II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd17717e97484360a90438182a423b432dc3e75c42c6fb9ec5210fb4c7b6dd28. 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/HKI199945304.
Lute Partita in E Major, BWV 1006a (arr. W. Despalj): V. Bourree
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58d465a8695f879d1178194499285437211277229cb8f746cf21593d22bc2af. 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/HKI199945305.
Lute Partita in E Major, BWV 1006a (arr. W. Despalj): VI. Gigue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a2cbf20d3a3217a3eca6435151ed6e5362988b84143d55f1615b883e078d90. 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/HKI199945306.
Sonata romantica: IV. Allegro non troppo e serioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff240bf484cc9362f401d18271b53ef45a3c987d6f2bf6e5814116e00acd2a93. 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/HKI199945310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ed3794681471b920e3f77b2d6915410be8a4d80901683f7b2e294a8015f130. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKI199945312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77060b5bae2cf52155902c8ca5a429605fbfbfc83d3448c5033255bffe6b56e. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/HKI199945313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298492637920c4a12480b68404d26729a69cd889b64c27992c9566899e6eb853. 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/HKI199945307.
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 0x75b5bbc1d51fa8b6d6b7aeb8c317e23a56f91642b79c71104fe21887209cbe04. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HKI199945308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07d6cd09484592b0088fabb8c1a4faa1f8bf5227ff94f59ad8cc7292ff01b0f. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HKI199945309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0bf55849faf5c062d403d0aeea6ab49a13823ff1b2ebe9efa2a87ae3a08e24. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/HKI199945311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6ed4165a30a76f2d2ded7a8059a64599a1cbaf247b373bff901a07983fc800. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/HKI199945314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a21a6e2edbfe502ad538ad61da7b019094f962e84610021f9175773fe7c06b. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/HKI199945315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6d655bac11628d9944c342d2baf2272ddc7cc605981df90e984dbdd06607d6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HKI199945316.