Downsyde is an Australian hip-hop group from Perth, Western Australia. The group is composed of three members, Optamus, Dazastah and Dyna-Mikes. The group has performed alongside groups including Jur
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 0x6ba6e71d0cfedda065342857381901bb8aaa9327b6493ae088e2e8eabf6c5f16. 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/e49c3ccf-9776-4457-8cb1-0133fcad41b4.json and https://artists.proofprofile.net/proofs/artist/e49c3ccf-9776-4457-8cb1-0133fcad41b4.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 0x2aaef03466b715a3451bee20125dbaddfa580f154b5ea3738fe5a6fbdcc44239. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AULI00963430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501d746d00c73f652c42c709da999d2599bb674b280d632259dd97074c1b1bd5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/AUCE00800826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd505983763b35d58f4ab25e2c9f64bb1cb9a83e9d97656f85ffa2a7f531c2df3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUOB10400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416488debd1691051dfed806c579e2f14a751048b355d828225dc8efc98f0951. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/AULI00849630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3367c8a31673056693dd35ec3dc57c8b008177f778f2c5ea6304bc3cf0e236b5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AULI00849640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801ea2d1dacfee3dfa4cde7cb7037bfc45e361228f3a0530d35ba2d62897feed. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/AULI00849650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fba7d7de98e303c4551f1e4f9c2ba3104807246596ed51bb8e6613f1a380fd. 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/AULI00849690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7f014a588e72ad7ed3d83cbd7f9aa7020bdaec5002e643ed6b5d0394838e48. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/AULVV1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f9ee48f268932d25e82cbec34e026127aab131fcf4dec05a28c3448befac3a. 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/UST8K1693995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48100dcacd2f8b740cb3e6de6c0bf15150dc191dafb1e921f15bbb8d4f83ca1. 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/AULVV1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb892397a11b51c920deea3c207bce8400e77019a1f20df56b58e061864841450. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/AULVV1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b66622a9a751cb136b1b4ee0522c8201c230fe14b2f8203965b6c00ce53da03. 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/AULVV1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36c0d62d10926dc47c6efa68129958c187d0c2f09443239bf3bcc4495bc8eff. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/AULVV1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88f85b2b20770013eaa1c5710e5866e1bdaecd7adf13b74e22ba014ebbfff1a. 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/AULVV1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3feb52df9b08804eb820f4064eb1f660062d7573b156365e55f5ba36e5cadf4. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/AULVV1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f844dae60b0948115bea66ca42791aa1b7e2105cbbed9309e410d426eeeea1. 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/AULVV1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73026cc56e7fb88bd1403ff0130b8826843f42b1a086c9bbd3eaae67903906fe. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/AULVV1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9120ef83d5baa80d4d6af6f791d92de78b308cfd26f49319782979d973687b7. 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/AUMGB1700160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aa2f85fe4fedc3a5a6a8349fa68504b4095bc4d6d111e791043616ccd9b2c3. 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/AULVV1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d537c8c892dfcf9e77b4ba8c416acba5de871d76c0b3aad1bc878f22adaa123. 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/AULVV1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c112f0b11ae21c95241d8897740abec9fe386a7b0a8dbd72895ace61894192c. 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/AULVV1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b0122eae32e8ea83ad5f42dc02148939c6a45d9913eed3e2eb01af9b5f31b2. 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/AULVV1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650ab9211b71f198984fa52eaae5c93fa12aa048cf03fce7dc5ac2d0d8fb035e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/AULVV1700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf35d690007ff21ada26aa14271483f826d97e01603366f90187c03d198f3cd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AULVV2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c185aa4399be6768290b3407e052860745f214c5bbd6c8021d8b184df97ea4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/AUMGB2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10be5b457e4a401649456496100db73994a5bf90fe949d8d92303930e2c5998b. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/AULVV2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5fb4ec1504e1691a1e55a6fa85efc2fb2dfcf4dede770aebde8f9cb643982e. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/AULVV2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa336bd702585727c9b47fc33ff28e97bfa650ba7ede57a9a3220a711a4c24260. 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/UST8K1620919.
Inspiration Island (feat. Downsyde & Layla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f25f88c4bab9a7330027057c5a52101eab4943d75ed38e1de0374de74f7b4d5. 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/AUBM01500339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf3fd27c4ad6384c6c7bad9b183bb084162a3c5cec88b827d1d654ae86b10eb. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/AUOB10400161.