Seth Marton, who performs by his stage name Seth Sentry, is an Australian hip hop recording artist. He has released one extended play and three studio albums. At the ARIA Music Awards of 2015, he won
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 0x14c6d6431e653b8e80a69244d2d88925fbb7b09608cba7de518f1ec530bf7358. 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/1892f5bc-d27a-40c8-b770-c415eef34479.json and https://artists.proofprofile.net/proofs/artist/1892f5bc-d27a-40c8-b770-c415eef34479.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 0xf811368bb1eb83b6c60cc6669d7d0c514f1f63fd7e4a0ce2fe36ac69e2d8559d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/AUGCA1700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dd4206e31d227dd48261e7665ca508d0653665f9f667036395a0d5806761d2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUGCA1700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f099ba624806ad43b0e36e93d86f3c5f698482c22bd32171087e0163fdf2fea. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/AUGCA1700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747be0f0e86e585d4a486bfa69faa2c194a4dd248322de652e7150a235fb0e8d. 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/AUGCA1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ecbff30cc1f3da78bfcff765f789bc44a553df35b8fc86ae5607d5f193e8df. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/AU2DY2500336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef2cfe1a98225ad5bdc4e5c010b1c24cd098f7f4d2c17a98c1c8767b0310dcf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AU2DY2500338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63bee964fc215fbedffe996f03e49e1c87dbaa52860eab1786b4c452ac49b20. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/AU2DY2500337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13133580d442fcd43a9c9962134dbc926cb1680173c182a63547529fa1d4ec5. 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/AUEF01400837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5add50c76ffe154f8d4ec94eb7819b0f3b675e2108092e216b1d8fc4c300351b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZHN82051265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9500d68fbbcc63d8f7ccde51a310634979474ad55eaa1534e0e3f45f342528. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/AUNC10803959.
Celebrating 50 years of Hip Hop - Australia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9500d68fbbcc63d8f7ccde51a310634979474ad55eaa1534e0e3f45f342528. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/AUNC10803959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1ac905de7179256c3ac6e6dd8b80e09a8e1dfd6ffe9b09d713dded448c3fe9. 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/AUUM71700761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1ac905de7179256c3ac6e6dd8b80e09a8e1dfd6ffe9b09d713dded448c3fe9. 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/AUUM71700761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3821be351e61c995db7b0e70ac9b7bb530751ac8b660ee536a91c1bc6e64b970. 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/AULI01386690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3821be351e61c995db7b0e70ac9b7bb530751ac8b660ee536a91c1bc6e64b970. 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/AULI01386690.