Uboa is the musical project of Australian drone, ambient and noise rock artist Xandra Metcalfe. She began in 2010 during a period when Metcalfe experimented with doom metal textures and home studio eq
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 0xd07a28a1e3f821530523e834df7323bfb7c6c2d9f9e9e45dcf5d82362c02f762. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8c38341-374a-4173-8f02-38eab022eed1.json and https://artists.proofprofile.net/proofs/artist/a8c38341-374a-4173-8f02-38eab022eed1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Apple of Every Eye (with Muddy Lawrence)
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 0x0c8cbd36571b2a56690d6ba6d09b97d965509bc2c266b0bb6f45d544fbe38b7f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GB9TP1800402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f31cd9a6778064378dfc0f2bcb34426527bf6d2a241fc46c68181bdad1863e. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/GBSMU6434099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6752478a1beb2d4c840637e4e5d9cf231af3540ddf5cb7a3fa71b9d07c320b. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GBSMU7020068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9faae6dc3c47aba4c97ad43e3f45ed0d1e8c03f405c265434d9499dbfa96ead2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBSMU7020072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f641ac5e8dd6f112d0c95ae00ec08429abf58511502f81d5b3c49abb72fff89. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:01:41Z), 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/GBSMU7020074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec85fe0ccb18ef5024e8266fb20f08b12d2cf6fef43c782595dc939d01e24eb. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GBSMU8100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3536803c1adbcbdcae610ebd4ef64850ea1f76f67bbce5a3f3521ea717a253. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBSMU8100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bb4afd28026a0e9f84f4ad8c4464b8e6b80c7be1f8b7563d58b980093b7899. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GBSMU8100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801720f4a78f29e8520ae028c1c68bde7702cb9ec7750f7a86f38b8f9c0144d7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBSMU8100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7407c2e92f119d6b7fcab6dedb9ce0e73b54557b88b3c4616a14c5480a508adf. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:32:37Z), 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/GX89G2484515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b4b3c29980cd5b3532e13422e9490d04d1bf776ca62a87151201503c210dcc. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USA2Z2301400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665fab5f82f4750f2d22f56348967abcd7841cf4a313d9a64c046be714599abe. 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/USA2Z2301401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e379825df1a441c6fb86ce9c2a4f31d03499c91fa674194c94020596336a6b1. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:55:32Z), 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/USA2Z2301402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc7aae0fa6f1eee60c22e527a7679d0018766f78e521844c56faf8aab6cdb80. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USA2Z2301403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87ce8353f4f7a792ee7484ab15ec5a5b1a49fb33de53be5c242a7e6efe44b66. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA2Z2301404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb743f61e7a1addf88fe5b10a30d0929d001147413cb1595ee7206aa18e2ac534. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:31:32Z), 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/USA2Z2301405.
Petplay Polycule Open Fire / Wasted Potential