Dryja is a surname. Notable people with the surname include: Dawid Dryja (born 1992), volleyball player Thaddeus Dryja, American ophthalmologist and geneticist See also Dryja, Greater Poland Voiv
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 0x6c89e12ecd0f2d7e72b96da35aea1bff93f2ea603b7420898b429498b0cadb5e. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23746482-6b80-403d-b518-dd10f0d5fed2.json and https://artists.proofprofile.net/proofs/artist/23746482-6b80-403d-b518-dd10f0d5fed2.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 0xf2f12e622ab98e81d2fb55495e4cfba1dde76aa3a7953257588d6da8f4c496ee. 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/PLC061908012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a6f4d49c03cc40f7e48f7ece6716d8e8374b78928c5decea98b3ea13e425e9. 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/PLC061908057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14600b6e95670963607a33c66ce734fafc8df5982a660c1ad92c1377bad4a4e. 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/PLC061908327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5f58af0896f4b68233924638b2a829ef7ae846a8334db2f1665fbd4a1d1d8d. 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/PLC061908277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f74d63ac30b3b7f8abb717197ef7123ed6a743ef5f80eb6c0dbc99ff8a600e9. 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/PLC061908736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d8d859d5bb29d4b04c0e2ab07035b49408e3b9e1b5d343060162744bf01ea8. 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/PLC062009421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0610b3832dbee460aaba33ccd2fbd987a4ff8c607bf0765294f58dd2bc22345. 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/PLC062009422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3296c58c720aaeadc3e342b9a095a62767e1c82d66efef640241865d91d4b08. 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/PLC061909005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6488a00eb0fe69b96fb5d516902e193303ba6b5621720e638dd4ad9251411b. 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/PLC061908538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8da4c2ed8bf3e134038361808aeaab12b40565e94ad2ea4dd5ca9e8bf6ada22. 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/PLC062009146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012cb17df7109f936f1a510caf88e8bd93dfbd9884b48d434afbddc26e80b8db. 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/PLC061908997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530fa547054f9580efead5acb03a5bd77c1c4b82252e592c979e22b936615120. 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/PLC062009335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca7ae46aa11caa2748226e0b387192c9b13afc2b34f09a64465e8f96d9472d0. 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/PLC062009431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c3270bf5f886ec7850680943b88a4b7f3d20b98466a5385d251bc3802611ee. 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/PLC062009217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897df72dc2575a0e0cf3c2bd44c13110d5a21002d4c55c1bda9cceecdf45997a. 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/PLC062009423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18b40bcb1fc9f60cafc349e3a99dfa744a18a11aab05e807becb8971cfa9a5e. 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/PLC062009425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7f6e8d13e457c5089768585c340ae29fa346d9093c97609b1ad404ea3c9124. 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/PLC062009426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a45eac3fff22f47111071b2adce43a9a8d4cc87d8bab2f22ee820cfc75281d. 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/PLT612140002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410824177ffd354e394a261a5859a80576379203742b245fa3375307979a95df. 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/PLT612140001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cce49b3235aae56bb87a1022d93c2d90438bb7365daa1a28c90b30d6d46aa3c. 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/PLT612140003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f98c8b02a054ae1540a928433d72d1c20afb77e8f33054a7827aa5687aac1b. 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/PLT612140004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccfba018b384d8927b674c48fc3a3f21d910e3d9bf64d3c332520cfa4d5ffbb. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/PLT612140005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305a19a0832d1fafcbf7bfed09a57d7407d2c43609c0e108b43dce0e374d2a02. 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/PLT612140006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a45b88bc22cd79fb2d9cac799e7ff5040bfdcc5e6169b06d1251239e2e624ec. 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/PLT612140007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da0bba82a5c293326214323094b00a6fd87796dcb662429a2b3056f61318a8d. 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/PLT612140008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa502e16f4929dfdaa9fb665f721bed94e1aa2dffe9fde29a48f9d11b2ab8720a. 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/PLT612140009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd422249684d807e8b7450663e96620e466d9c16b86ac6ce5b67fdcbbc30eab4. 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/PLT612140010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c0cfc39a5c7c0ea868ded786ec667bfffc71ee2060281b5a61bd00c699ac19. 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/PLT612140011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde4b960122b9d77dc2082159c3a168a6cb9c98fc61c971b06102d1379cce1b7. 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/PLT612040016.