Guy Theodore Sebastian (born 26 October 1981) is an Australian singer, songwriter and record producer who rose to fame after winning the first season of Australian Idol, in 2003. Born in Malaysia and
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 0x316f507b8a263c8c0e95104c3c4d6a3d5d1deffa9cd787ecdff04fada70ca2f3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/571353dc-dee3-4ee3-827e-11032ba723fe.json and https://artists.proofprofile.net/proofs/artist/571353dc-dee3-4ee3-827e-11032ba723fe.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 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 0x24699c7e05198383df9747d16d83cfa1fe685bb58841c01e46a6ca8e9e216acf. 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/AUBM02300126.
Food & Liquor II: The Great American Rap Album, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dee25fa694016dbc06a280f165f0bc8ae05eb13799d42f3211ea0b3972162b. 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/AUBM01200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dee25fa694016dbc06a280f165f0bc8ae05eb13799d42f3211ea0b3972162b. 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/AUBM01200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54193e21d1288d7300ede2eeacbba636acfaf4b0f372f85fd7a767f3e786e223. 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/USAT21405242.
So Close (feat. Guy Sebastian & Bugzy Malone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9136e3ee8e97cef6ec702ebe61d7c1f1f473d81b25dc2b0ed5b3d16bcff32b92. 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/GB7TP1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01e95689c85e9489810ea10b8155a96fa0c0a9ac6bf5c491a58a64f14c1118d. 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/AUBM02000697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d71c1e2f7f0070e8440bbe82348e9ce55b4dbb9f4e09165126e273d2292317. 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/AUBM00900419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dee25fa694016dbc06a280f165f0bc8ae05eb13799d42f3211ea0b3972162b. 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/AUBM01200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288a152d0785c16fc5c258a9ecbfb12d76b056e629e8b600eba509e134da3d46. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/AUNV01800317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc356efb514ffcd90a0adb88289ef12501e8076f4be4fe8eef6fa797ac584a2. 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/AUNV01500889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47179ae8e3dcc346b764a1b744967dbedc3a40a248e3f6bcd3bea6611222829a. 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/AUNV01600435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5ce9ed11504e465925aa8063ebdea3fa304e07fbc52f30e0f33be440dcad68. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/AUNV01600439.