Nobro (capitalized as NOBRO) is a Canadian garage punk band based in Montreal, Quebec. The band was formed by vocalist and bass guitarist Kathryn McCaughey (formerly of Uncle Bad Touch), vocalist and
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 0x64d35cc98af918309ce4945a6accc3c30d67d9421ce5f65dbd082a434d70266a. 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/67bf96b2-1737-4b0e-882f-f08d945e1ea0.json and https://artists.proofprofile.net/proofs/artist/67bf96b2-1737-4b0e-882f-f08d945e1ea0.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 0x3cb2316c9837a3b3cd688a9b33a7366f8514faf2cb7bc79dd741a12862463f87. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZDA71960312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaebb91c2ac048b708a7629f3fd02e5ef52a295abaabc2cc2ed07026aa7439e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZES51912687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6e6a791e36ba138ae8fa39d3c83e4b98a3e030be82b123e2ac2d3a551d38b0. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/CADE71901043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541f28dc60bb2b917739d2bc3e8cfda84e3e92fba291c03f94017eb7b9bcf2f5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/CADE71901061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5aa79924c4624772c39c6fceaf08738f8af13c228fbe31e92ea495f3e423a7. 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/CADE71901060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541f28dc60bb2b917739d2bc3e8cfda84e3e92fba291c03f94017eb7b9bcf2f5. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/CADE71901061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94490a19d5fd6eeab348d29d97906bde592b4361794e21946edb965e13b44a0. 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/CADE72101328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5bde8cedb252cf3ae4fdbdf8d8ca4a90b80776ac0a00d9b6edbcce3d217fa9. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/CADE72101331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8666a61ec082e218401a0793c85a215f7918b1a07f1cf27356a633c20eb9e762. 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/CADE72101327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6ccec66aad38255046966ab1bbb1e41153e91faed596cae4bc52091165ff4b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CADE72101329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2b71c53c8d9fcf4e10169bac46d0aa8aab6bbd2fd72f7b1fe226ce13f865ac. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CADE72101330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5bde8cedb252cf3ae4fdbdf8d8ca4a90b80776ac0a00d9b6edbcce3d217fa9. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/CADE72101331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fe2b93a09bdec8f7c9c906965ab02f7b2d1965022fb57d085cdc6ab5b7ab96. 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/CADE72301654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd9aec39f65301e82d58cf481632a0651f59d97f184164d0136c416791a3862. 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/CADE72301653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae8f8e5ef4e13287c5f72f4c13eb6bdd367761ad4fa5f653e8c6b2e32b3a1ff. 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/CADE72301657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba039bc5c58e849555fe6ea6be3d3e3303ff98d0bacabf65baa055297597264c. 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/CADE72301655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b91cd91fc767c6485e9da08df179ecb98b24c8276752edab4cc9f3548f0f735. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/CADE72301658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1df5ce9abfdaf08987a78946db346845e6e38aeb6424a4a601577d52805170c. 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/CADE72301660.
Gotham Knights (Original Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54eba27d7ae98cbb0ef667c090d156b46324d57d04a91b90892b441a41aa8124. 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/USNLR2201204.