Tarro () is a north-western suburb of the Newcastle City Council local government area in the Hunter Region of New South Wales, Australia. It, and parts of nearby Beresfield, was originally known as U
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 0x74cad617003cae2eaa68630eb0f721bb9a4510b22b6b9d96a6c0c077bcda0d7d. 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/8a8f95c4-afa4-4c34-9f17-6d1ab041957f.json and https://artists.proofprofile.net/proofs/artist/8a8f95c4-afa4-4c34-9f17-6d1ab041957f.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 0xdcca6f9984e3f80108dd095d89858e29dd2137204ef37c72fbea4a7598be77f8. 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/QZD442000752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae81d53c58d4cd407c5836346346d5acdde94d7a3451009939a6c221144751ee. 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/USLD90819061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1891543e8fabaed317eb7d1bb8626f77bcfab3ea79f580dc1b58f7fb10059800. 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/TCACZ1720355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683114089b3c2a0f779980d33b8fce7ac145a17c794b1f0d2ab1ea6a563f43db. 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/GBKPL1974892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8192bb514d3c1b36c5e4d9290c005b96ee16628a753234e2b93be044b6ff1d1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM24S1914852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0db1f8b5df766160f0c5010bb712e781959b32b488ccfae5daef4bb04e778f4. 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/TCACM1644379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b826e81643dc9950bfdd4a74b70925808e1b2a8947b192b59592a262a40e38. 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/TCACT1660884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260d728cb4935c2993d199186dbfecd0493855412bd2079bad6020f02e72a3ea. 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/USLD90818940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27fc0a4e2f1ae8fcf3b7119ea9ca310b2818c02cc1f8c9c290eeff3a232eb89. 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/USLD91713273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461cf488b472d48c255c069fc0cbf28988d8de8ae22d7325c5c7c22d48bd426b. 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/USUG11701644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82962d0965e3cf7bf814096b8627ee8079f88b7ca78c379f71e0647f7d5d24a0. 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/USUG11701648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cff19ec812692ce2f6aa08b4a156bcf0c38de0cdd06d14b0ceaca3a6cba87e. 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/USUG11701649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb168256f6ba4ba0339e954872ed99fbe430b9d5494449700f91f09afe81ed7fa. 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/IT0080800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cb96c8168ce25e18e43ffc089aae88a6c210212656c9a56e2f43f96e37deb4. 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/IT0080800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b22084168f74a74e3e4293c6095cb85255726055232e62826dcb0d6fc00498. 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/IT0080800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab460681466e3cd59728fcdc05fef518d9ecd250ff3d507add499eb3795afa9a. 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/IT0080800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd48814c533a8c536c63fcb16012c376087092d7e3994f126384aae8afd2bbf0. 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/USWB11602362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cad1eeb7c2414825e073e7a9d0b35f3a8d67942e2bc31667d985032f6b78d9. 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/USAT21601536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35d932e707efd7320ecc5ea1711964d5fcc3f4241eddecc452e5405662c91eb. 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/USUG11802594.