Sasha McLeod (born 26 August 2001), known professionally as Sycco (), is an Australian singer-songwriter and producer from Brisbane. She was nominated for Triple J Unearthed Artist of the Year in 2020
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 0x73e257405ccd6910b71b5fbcc4ae87a80e2026a15625acd1e3e98666782e7e69. 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/8d97e4f0-e2ea-4ef4-9cb5-e775a3f71012.json and https://artists.proofprofile.net/proofs/artist/8d97e4f0-e2ea-4ef4-9cb5-e775a3f71012.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 0xe6b8eff8bd21238dfaa4955a536354b9b53c6630b3ba7f1116e5e08ed3ef86e3. 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/AUFF02200278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527c1c41d289f9709bc3d1490df9909b287e3c3ac259e12319774d50e9a60d86. 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/GBKPL2167475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac1b47bc18f54f39bd426a4c83669cf6074c7de4e2f250ae268646c3073d1d6. 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/AUFF02400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaafeebcd1b3b51c9992b660ef6bf19b7db9014b4ebd5d5ae519a83234689949. 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/AUFF02400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3243540b4847b9d820cb3474010e00b314fd327e5d5a48490c88e3cb59aa7e5. 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/AUFF02400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5006626a38e3c8c555b614859585f2f8464db146a22ce0ba890fe984dcb2a133. 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/AUFF02400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f35cf52193f27aa75c3acf92e40a91c758ffe8e88c2c274bf7ead8568cf16a. 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/AUFF02400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6832bef33bf7858cf35bc1216b8975e3573edd0ebee51bc5445742fe70211d. 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/AUFF02400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c96a950b0b6d8e606db7d59d8e8543996017d212b6669c665fd2d390b5ab42. 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/AUFF02400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad086fd53d7a94462d7ca5cefc099b431f7ed2232b6e72074edb18ceb1ce278d. 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/AUFF02400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b8eff8bd21238dfaa4955a536354b9b53c6630b3ba7f1116e5e08ed3ef86e3. 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/AUFF02200278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44e1217e14b9beef176449b5b3603a9f5d19b87664efe5d2c5245104800a147. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/AUFF02400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e7a37e01464e2850fa24f800dabd494df6b506bdf30b31114b528af0e6c2a1. 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/AUFF02400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9be6c00f403e274144035ad5efbd5529898686dce08801643f6a2e74bcd004. 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/AUFF02400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1389a8ffc6bb5a6f65972703d92ce3f1f53f176dc6c040bc4191c55ce7a671. 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/AUFF02400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cf96fa47d38ff8ef43ef0b05182cafb2c5e543dbcfabcdd3d4a338da153391. 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/AUFF02000223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dda7c63dd9d6bcd59338aeecf30c990ffa2f4d6f6241c62a7fe2bae2dc1d18. 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/AUFF02300494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dda7c63dd9d6bcd59338aeecf30c990ffa2f4d6f6241c62a7fe2bae2dc1d18. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/AUFF02300494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af88317c053d85411229d1c045d6e4ed0dac09a26ff1c0b91029a090a045688. 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/AUAB02001619.