Tomáš Hájek (born 1 December 1991) is a Czech professional footballer who plays as a centre-back. Career Hájek made his career league debut for FC Fastav Zlín on 3 June 2011 in a 2–0 away loss at SK
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 0xf1f34f7a5f169f08316a4704145267909a00c4f03802ebbe0d375715b00c2e9b. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/092f28ce-2c10-4d9c-b846-b51b335256c8.json and https://artists.proofprofile.net/proofs/artist/092f28ce-2c10-4d9c-b846-b51b335256c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Golden Violin Views (Classics for the Soul Vol. 3)
Poeme in D-Flat Major, Op. 39a - Arr. for Violin and Orchestra
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 0x52beb460a30e2390cc87ee47fc426e251b0b7e66b00748ceb58cdaecfe84d51c. 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/DEW912119601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c47b34ce9ddb5e8009a431d317456847ff8dc23c4ba9a2687e785b25c74730f. 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/DEW912119602.
4 Lieder, Op. 27: No. 4, Morgen! - Arr. for Violin and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044c9b05845af727bffe56729373f5cc6899a48fb4ed724b9472e048f88f8a7b. 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/DEW912119603.
Sicilienne, Op. 78 - Arr. for Violin, Violoncello & Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7936fe8c4fcf4d018087b7f2639d8fd7b52bba017182d2f7f8447e5aa8c7e3. 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/DEW912119604.
Gypsy Songs, Op. 55: No. 4, Songs My Mother Taught Me - Arr. for Violin and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9071ef35d714c5a40e5da47649886f953fa625a5c6dbdb9e2d7b202070e1b6f8. 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/DEW912119605.
Chanson de Nuit et Chanson de Matin, Op. 15: No. 2, Chanson de Matin - Arr. for Violin and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb213d91bbfcecbcc4046e20a06e76b2276965d0368336577335200b40564b6e. 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/DEW912119606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a012202ca3e53ca1d7766d018e4699756789a178a1aaffea467b60287646cf. 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/DEW912119607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29aaa3923871aeaf1db13158a434f0f00fdd313abc90c16c42e1b4e70937d809. 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/DEW912119608.
Lakmé, I, Scene 2: "Flower Duet" - Arr. for Violin, Violoncello & Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8732c13f2bf6f7b3c63e39dfac9c602068fd66e334ced6f2d4d9219741d4d2b. 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/DEW912119609.
Symphony No.5 in C-Sharp Minor: IV. Adagietto - Arr. for Violin and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c935441c3359ee813c489c6bc3860345df5896e787cad769830804af49b346. 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/DEW912119610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38f13a608a0e2088799f5db5808e040d78d774a9769c7643b703bb31192e070. 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/DEW912119611.
Violin Concerto in C Major, Hob. VIIa:1: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde736b584db405c0ddda3e2de2afe76d0e7f41d7235866f299a04acf8569743. 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/DEW912119612.
Norma: "Casta Diva" - Arr. for Violin and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a6264a3f77ebe086c8be3675e9fcd1da9a17ee263de9b0dca6824acfabf754. 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/DEW912119613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ce8418a1607ad4a535b5f459bd0d81978ce973bb57e184c0d759466834d1cd. 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/DEW912119614.
Schwanengesang, D.957: No. 4 in D Minor, Ständchen - Arr. for Violin, Violoncello & Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ffe6931aa0f6dd7f9bbbe3ea7d80f6300160ca41797f53f9d59a5823392b03. 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/DEW912119615.
Et incarnatus est, K. 427 "Große Messe in c-Moll": III - Arr. for Violin and Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d26081110929656f29acc30bc443e4c349e312af7363a380e2a7e75dddd6a42. 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/DEW912119616.
14 Romances, Op. 34: No. 14, Vocalise - Arr. for Violin and Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292c19cb72b8b4f5ad7acedb2308ec455c25608715ac702e076175dbf3b70db6. 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/DEW912119617.
Gypsy Songs, Op. 55: No. 4, Songs My Mother Taught Me (Arr. for Violin and Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c47b34ce9ddb5e8009a431d317456847ff8dc23c4ba9a2687e785b25c74730f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEW912119602.