Dennis John Cometti (26 March 1949 – 4 March 2026) was an Australian sports commentator and a player and coach of Australian rules football. In a career spanning 51 years, his smooth voice, dry humour
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 0x30821b16b574d9b5d168bc47ca62a6761427a950ceecddfacf919bf27d607d0e. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc97d195-f86d-49d3-afd9-5e356149c766.json and https://artists.proofprofile.net/proofs/artist/fc97d195-f86d-49d3-afd9-5e356149c766.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 0x8438beadbbbfed7f673684bcf430e7cca48f5e3fbfd07ba76a22286209cde9af. 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/AUBEC2317825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8f840e8403ee586f3799c1f4c1110dda798c81fa4e96f986fc340c5bd8d3c9. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:26:49Z), 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/AUNCC2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6bbfc67522f9036530975d9ce81583b08c68daa3addfc67a043da122726e94. 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/AUNCC2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aab8e4d492545a6e9686b9b35cd182d5c1bca8826a9b4dc3ba873c5361a5b3. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:30:59Z), 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/AUNCC2300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b13ef49b4e497b71df55b79505203edb719ca54e7cba2cf45ee8e347e6441b9. 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/AUNCC2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf71d7a4cd3c1e702059b9f9a05b733b0e86721eefbd4c37c86f031a19b30164. 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/AUBEC2234786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186dad55d791a32ee58af1480239fbc461ec489d512bb11ca2afc692d802b678. 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/AUNCC2000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb9796745db6b2d3e41822dfe8ac2ad9f67673531ce8fc4451b22221fa5acc4. 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/AUNCC2000145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59485f9e4ce3d3e1a849d25d6a1a114b238e23d578c34be9c89638bf4fc53cc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUNCC2000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60e54ff33815dca92cac7e8e6674bfe31e7d7d6fcce0b85684ae394fe7d730d. 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/AUNCC2000149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e51235c802535c5c3e3d6f6bb399c8cf3df7d757dc556c18f95227a7cdffd9. 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/AUNCC2000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef338f692e0033b2e2790ba8f9d2eb5bb473b424813b9de43f83a55b0e90ff8. 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/AUNCC2000151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2d47156aa2e7f431f33016dff6e2311aae66d49865e9a6dd3511e32a82aad3. 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/AUNCC2000152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8438beadbbbfed7f673684bcf430e7cca48f5e3fbfd07ba76a22286209cde9af. 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/AUBEC2317825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf71d7a4cd3c1e702059b9f9a05b733b0e86721eefbd4c37c86f031a19b30164. 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/AUBEC2234786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61507a0437752950414b9873b6ed058aa7e7f20f040c3ce6c767aeef59c0c818. 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/AUNCC2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e35eeb832e9c3a948b6fe21e835162c31dc605dc3347dc441b1a401928f048. 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/AUNCC2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186dad55d791a32ee58af1480239fbc461ec489d512bb11ca2afc692d802b678. 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/AUNCC2000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e3e12176676171df3252b6d6993bac8fe5859b00c1a5add423caba43e236f0. 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/TCADT1810382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725011dbf7498cbd8396621dab984cd9ffb16bcdf8420a0d11b513ad09a76ff0. 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/TCADT1810383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd414eb539923968fa3a8f2b08dfc1de590ee851ff2ba53a7124092a329fab416. 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/TCADT1810384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c38cd556675acc1997c04607d1da4aaeab5078967220577798e94f0a006e7fb. 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/TCADT1810386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b43417beb93795b2363563debbd26bbda3dda0ee64f953b5579655fe3bf7d9. 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/TCADT1810387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c13e08cf38ac203c44aab307a7f2c72652c646010924b951fb9d0f566806da. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCADT1807283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7c2c008013a5d33a751cd8983e5316cd08f88942ed0a2633d5de0b7aa4ac2a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCADT1807285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1817eb9932a605008db9cf2aa28a819ebffe2dd073ef9f22b3168738f74e4146. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCADT1807286.