Václav Vydra mey refer to: Václav Vydra (actor, born 1876) (1876–1953), Czech film and stage actor Václav Vydra (actor, born 1956), Czech theater, television and film actor
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 0xe785d29982b7c0dde3ba2a14c2e37c9e44fdde3756aaa6f5a450b06e2aadbaea. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/643b443c-6882-4e90-92b2-840bfb9a2cb2.json and https://artists.proofprofile.net/proofs/artist/643b443c-6882-4e90-92b2-840bfb9a2cb2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Muz se zeleznou maskou (Original Prague Cast Recording)
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 0x38c81d7c7d463a40a675885bd07c1b35d97288ec23340894c3641971e955cb71. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe011c531d92d4e8c77f43c1e2a72a52ac5d6904624e645df23bca8407b99f18d. 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/CZA231700393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7d2ffdb85b1b4785e63826290b5fccd7c4c0562d7f33a6bbedff2d13ab8c7f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2ffdb8d3d63f00e88d6d37300cb6841265bb817bbed6b8b159be0a31887558. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02682ffadf7d688585ed7b6e83580e2ea42570ad7bc4675e2cb4348947cf1bff. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4a29124e2f491a2b1171a54b02dd4e4f2c522aa31bffe6f1dea0ba95f76263. 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/CZA231700397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8ec761c68cc77c3931e2247c01a029a9367b8bf3aa7a569e9054bff65eead2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3837fc08754af5ae0aeaf47e3035cee4e45ea7a0a2d5f1f4bc042a296f0968. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc288acef1980a5dfd646595e13d383700c5a42e7a3e43eb3e3e714e7e2ba7b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e184d4ee102d27aa94e2fec230198cab046f12c8cacb0dc8e2f8aaaaa6ba80. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef104ade72cabc068b420e69b8b468a3ea96dc0efa845567c094758949a350f5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16d373b3cd97219937d6a320c77b2b9a9a8b7f7bfc79563644bbf95d60cb410. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb212f4bbf3cb70215ea040f7853759ce6d429c29ea38282082561e892d732c11. 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/CZA231700405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1421bb7450f1811e4d53ed1165cfd6569fe50e32e65d4e95b84bdb9923938d16. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf1306cf3871f72676784e6915510659575ecbedf8083523f52512ef64f0fb1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a9a0d1e7c7763ed833c004dc882fed0b5d60def3221ff01b4cbd407b48eb69. 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/CZA231700408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19683e42fe0b314d29e20852341334088470dac7dc762ba503b63c828b1089e. 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/CZA231700409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa1652a74e5eaee0a5d6ef5e76f532ead190f3a8c6c4e4abff01b0cdb44a02f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9617bbea1907ee543d0e8f2e8ed75357e56aa7a1f3951914a48b2d8e50e4608. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352b848b2830e0d6757bf13e18b97f1145266e41960a7d040e1eeb9c645c0151. 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/CZA231700414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744b89f55b6670422e8d3be1ff0aebe9c213ec9ae7a7c2e3a6e96df391e4ba5b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CZA231700416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1d8ae39c60bfd16e2ae7cc97b524c688c27bdd0b9d91aef87b83cbc2272a54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700417.
Original Prague Cast of Muz se zeleznou maskou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93575f54eb2703b40194ea7eee602a9698f607c287664399cf3d4af9bd678277. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/CZA231700418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3eb1488d0f7a6da0038a8f4cb78fa3c977622e96a3c6eb28e5438218dc495e. 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/CZA161441226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6219f6b34a086b891f55b31951c4ab7af02462d532df91f88754bf903e4eda. 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/CZA167500515.
Pohádky Z Pařezové Chaloupky Křemílka A Vochomůrky
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d8f8f4347680349669066b3a18e3e5768556e1a1dc8facdb0ae924189bee39. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA161001114.
O Makové Panence A Motýlu Emanuelovi - Znělka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22f9a49f45200a6ee408c1ee6620a2589bdbbc639e92e68fa927aae6392ac96. 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/CZA161401043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa8ee5b6178c5d8a474048aa0a57780b058855c86ad2c9bfa2be59e6b86031f. 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/CZA161401044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc151f63ba030a2efb15651663675eaf58475d2e40f0274a51977c010fcd27d62. 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/CZA161441225.
Mach a Šebestová na prázdninách / Prázdniny jsou príma věc
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b6bc84caf9eac02f4a2e0d6916082d8892d655eef2acce9bd22636bfa08812. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA169600453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee80441c48cd2f56b77efd2e6a40e1300b4cb961e35389640fed262c45be133. 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/CZA161401045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9cceaea4364f95501b138737f20a9aa3e488a0aeb5e6307cd2b5c1c796fe63. 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/CZA161401046.
Žofka ředitelkou ZOO / Mbabá mbabá-zoologická zahrada je jen chabá náhrada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fddaeb16e369165649046d23f05ae51727ef3ca355037c2a888860a23b184d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA169600454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175f4adf996052f70a0012dfd2cadade1b59af26f0962a47cdfe50a632d60c9b. 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/CZA161441228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0738dc071c08345b7e38cb6229aa15ba2e2c2058785fbcdd2f6fe0723df86620. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA161103327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe280f579c84e4abe66724bc93772ba5c3e7d34c4c15e2d4a2f4b440bcb55643a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA161103328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7e3251621d4f4211f8dca8382fc4b08e583a9e07af754f7720a54c385cf772. 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/CZA161103330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a0abb6ff3df711972fe633937011e98200428c71018b3b6757e81f2bb89cb6. 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/CZA161103331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e6bfc0ad363c7acae0ffa17fcbf6b72636025262e5365802759f884800a6a8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA161103333.
Zvonku, zazvoň cinkylinky - Pučmeloudův Sen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f02eb16ef97f09c110eb6f8616adf22657c7a56e9e4e201d8b2fe8feaf0ca7. 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/CZA161103334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1a50a4b80764d7538d2be448d4bf97834ff4f279b256fa2966ca128c70e5b1. 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/CZA161103335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88da4e320d79bae96babeb279fbecc5260eae699301532a31a28320d07787348. 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/CZA161103336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fcae38321de69e33ecd2862a5c04be5cc9bdfb493eeac680d73343c349d07e. 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/CZA161103337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ea40fedbb3eb66559df172f9126cfa0a93a1d1304df41d7fa8cf8049af4476. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA161103338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250d977288de51672375040b2a594ee69a14d6e072ca1fbad0538022812d4952. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA161103339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae555e8fa353007f28e4267a00816a37d2d1f7b8a07d17540420c1e52dc5079. 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/CZA161103341.
Blešáci a blešky, máme život těžký - Štípy, Štíp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134837bd3fd9dcc6604602e1ffdea13368afb2e29333886f0681d8aecc82728d. 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/CZA161103342.
Haló, lidi, haló, brouci - Přesýpací Hodiny
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fda24e433ba49ee3502d9e63ed53649dd6f47a18f7be397f80f9afb2238ee38. 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/CZA161103343.
To Mám Krásnou Ubikaci, To Jsem Krásně Zavřený
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb474699c218324b2b4ac95cd5b45164e5bbdb1b493f92569f5a90bd688acf90b. 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/CZA161103346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a4fd4ba442e045e1f4e27e5c51a28b686a278d3953bf0ba325f9a120ab8038. 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/CZA161103347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fdc185770adc6dc7079dc05a7ecc3600595e677e5c5bd85195d9a7ceb2be9d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA161103348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f84b52363776eda368e623ce67b56b432207f5ce73d5adeebbde4b02946f54. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/CZA169801226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a1f94361021c3aad08a514efab5bbded0fad658deb9b6a242eafaa68443ff6. 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/CZA169802226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ee46c282b668c57a1ec018028919bd6671aadd528131618460e973f484fbb2. 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/CZA169803226.
Popěvek kuřátek - Pí pí pí, kde se tady spí
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979d2c6ac3ed46d6f32d14805d177c10abfc350bea739cd388fcb5c20def958e. 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/CZA169804226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5969883c152b840d165a46b4349b365ed4dc971e6123a49b8d91ebd00c21ed. 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/CZA169805226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ef96d0d64f4aa9509771827b4f96d4ed3fb0edd33d5b64e300a56bc91fb399. 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/CZA169806226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7f47da6359465426296261658c0d22c388b736ea721af7f41a5ca821656e33. 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/CZA169807226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b5e41b815df246223fac9421b79b4a32bbffe8aa29cb4f6ea46e919cc56c8f. 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/CZA161401047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10e9296bff325849fff8e7841e6730d4fe67a66747d6052cf0b9d69361973a6. 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/CZA160404554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557ffdd04c8b03967e6da5d10cc5e812fae2d0ddc1029bafc5191768f9bacfbc. 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/CZA160404559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0864971a9f4c568173980b09909316835d89cd314ce86af699f8da1602a09d4c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA160404562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845ad8552f488d411820ce46331b6642f6c3f08ad78de5147dd1979c7eb8a919. 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/CZA160404565.
Bob a Bobek, králíci z klobouku - Znělka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2320d14974d484892260f90257a024454987f43bc5cbb8de06ba59b19d41b8ef. 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/CZA161401048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f1ed9457bf5e87c0edbc14707b6d52fbd9dd730792e8bb92cbdca54c6eaf0d. 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/CZA161441224.
Broučci 2 Dobrodružství na pasece / Co se to tam dole blýská? Co to tu jen mohlo svítit?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8968ebc80ac241e375a9f2a7d0bbb6557c652aff4819fa34cf20eb242ec94f8d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA161441222.
Broučkova rodina / Našlapujte polehoučku / Možná byl ten příběh krátký
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d432939f1f39acc720026ce57340033e7d1b43eecd50197573374f1ca9e3af2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA161441223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e714613da9375f10bfbebcef070d512ecbc4f837399912c9177acd2759aad03. 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/CZA752158302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0352345f475041b601d9cda50ead2643c1cf98d87bc84c9c147dc8ec9b5a96. 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/CZA752158304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc468b5b85e21130e06b47b8b644afecc6f3bc8c68085c62eef54270a13c4123a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CZA752158303.
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