Latterman is an American semi-active four-piece punk rock band from Huntington, New York, United States. Phil Douglas and Mattie Jo Canino respectively would go on to form the equally acclaimed Iron
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 0x9eaf3c6e114ecec4ce597bdcf1d845df6d65f10ca0d12c6eef4a75578b9673bc. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3f2f425-4ce0-45f4-a960-b65798f07c62.json and https://artists.proofprofile.net/proofs/artist/c3f2f425-4ce0-45f4-a960-b65798f07c62.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 0x3df5eb789c3b26ebc8b848394692ffa001d691b7d7a61c0f63bcc38627d48c72. 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/US4KH0544615.
This Project Is Stagnant (Get It Out Of My Face)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247b4fcbce10a9e239d5520d5d22ec8a6c4d9797a3e5953f3a2d5273ab57bb87. 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/US4KH0544616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30090c1c5c0858bc06268243daec773d61bd372d7530049908af9f1590c817c4. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/US4KH0544618.
Video Games And Fantasy Novels Are Fucking Awesome!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ef681ef591f4f8cf6a1f6b4289b3751b8a3820ee2e7e3d832da707ee1932c2. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/US4KH0544620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc27a3744f5faf1992bb6cf73c020e288d45bf515e0b7fc2fd7f92f5b0ce3803. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/US4KH0544621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151e30923bede89a5a60ca811f65f11703677355783ea821fbe38b5d86a85687. 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/US4KH0544622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28af96d5974cdcfbc7ba9659fffe04396de796e0d8e430dd0830d2463de217bb. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/US4KH0544624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fa7bbbb784bf30b7bce9271b4a0a92c352cdab02a308ea5f3d0b9bd187dd7a. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/US4KH0644301.
He's A Good Sposato (I Love Ya Blue-Blue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd676c070ab2eb6b1dad6d1f9a07143185d4aa5e1c4a2e9fd54f98ce44df47b5d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US4KH0644302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1467b28a790a306e6075674c0cd20063bf93526312eb4473d9f450fc6ca2635. 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/US4KH0644303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432fc8ca80a8e0e0b8f92513de617a3065df3e51d0b63e7c1c63ac9e9c450198. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US4KH0645401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d4817d713ee670ef215bfbd63b8850f1e0509ee415dfff968b49fd5d1a306d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/US4KH0645402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c8b6fb951c0e940299bc4fe63e27ad9362d9b61b54ca2b53fe92208a2358bd. 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/US4KH0645403.
This Basement Gives Me A Fucking Headache
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1bf55e3df918da058fcedb831ac256b0eafb66e163edfb6d0defcbd0396fef. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US4KH0645406.