Daniel Steven Kowalski (born 2 July 1975) is an Australian former middle- and long-distance swimmer specialising in freestyle events. He competed in the Olympic Games in 200-, 400- and 1,500-metre ind
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 0xac84e9b9dac7a693963af5b59fcc5b03b6cba9b6824d21ca8d6ecd8a193eaa36. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2b79355-6e18-4e51-ac15-08d89f4ff5a1.json and https://artists.proofprofile.net/proofs/artist/b2b79355-6e18-4e51-ac15-08d89f4ff5a1.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 0x8ace8fa9c96c37a042486b0b6df230c261fc36624840aa3ab84ceaea7d84f65c. 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/BRJ302000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb832ea330864df212df1b98332f1df554dd3b4aeb7119fa35b100c1a27438e65. 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/BRJ302000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3bb4126500ae9ebdf245afbc45bd2f68231a32046de5599b9486a173ae783d. 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/BRJ302000022.
Venha o Teu Reino (feat. Daniel Kowalski)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e2a2d86c09c59503beafa2cb2831809deb0c3cc0043b3b1630946961b44677. 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/BRJ302000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72770b68aa891a0dcfa8f4ac48c4fff05483942b033db8943b6e30885818229f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRJ302000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c513a9e193987b7b3c9fbbd1ec94873cd4a7dca6602063eb23ec50118a5fc8. 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/BRJ302000028.
Não Nos Deixes Cair (feat. Daniel Kowalski)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8e218721d3f9d829b7811360ada9d2647226e2391f7d7092b3b768d392d615. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRJ302000032.
Teu é o Reino, o Poder e a Glória (feat. Daniel Kowalski)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b749728864478b382044e977b015e4eb50f04f1cc1746e736fa14ba345254f. 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/BRJ302000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe971ef5b8869ebc2ea8ca8f43058889439630fb87527a117ce67e91b234c9b. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BRJ302000030.
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
Livra-nos do Mal (feat. Daniel Kowalski)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2150fd1837b47d81de2fb3219f91db6ce9dc0b02a3f95d4acb9d6543114c4e07. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BRJ302000034.