Leathermouth (often typeset as LeATHERMØUTHArtist Info - LeATHERMOUTH Epitaph.com. Retrieved on January 20, 2009.) was an American hardcore punk band led by Frank Iero. The band formed in 2007, and in
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 0x819e13886590362be38267aa5bcd4e66a9f1190f2ac8f8d965f85facb1cea3f0. 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/73261a14-a129-4851-a095-eddfdb90671f.json and https://artists.proofprofile.net/proofs/artist/73261a14-a129-4851-a095-eddfdb90671f.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 0xc044eace2c075b77b011deda9b36ee9a011cbe8570e956b32a536fd519d8c53b. 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/USEP40825101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21907464939d928e98f509900b4c98f7a610e1d5f337d4959cd4ac3348bc05e. 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/USEP40825102.
This Song Is About Being Attacked By Monsters
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0db77189b1a48d4bb6164c0f7e29555ed004e58397c06027adb7eed033909ef. 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/USEP40825103.
I Am Going To Kill The President Of The United States Of America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8328bea7d92d4680307c0a5d4348be2915479678b6bc85ba5c11df4a74751557. 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/USEP40825104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc511f6015b2b81f3f061b86771d4fc086d894c00c773a51b481c018a10d29039. 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/USEP40825105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30e1926eb8cb35413e6d1a48be810a3147af5bb4be4959de3362764d1950004. 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/USEP40825106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16504ec30c9a243bf38616b6858d5a1537ade3aefae662e497bf9dd70cc0f90c. 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/USEP40825107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ecc1020207dacb92fa295e3d5cfe2e3125f82a377c7607f65d0493ad93701a. 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/USEP40825108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1eda5cd153bda1e700b81b6fd3e883ef4632e1eb8c4f50df293506935bd5dc. 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/USEP40825109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdb2e879a853723e27f7cbd0cb57dba8fade24ad1f33a00bae60cb67a051b04. 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/USEP40825110.