Blatz may refer to: An American brand of beer formerly produced by the Valentin Blatz Brewing Company Blatz (band) For people with surname Blatz, see: Blatz (surname)
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 0xd6692d6ff41ef4b425d7d9143e960586b9474a0a563a53bb96febffec797f49e. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f2899cd-cc8f-4d7c-a151-18ca59fb5512.json and https://artists.proofprofile.net/proofs/artist/9f2899cd-cc8f-4d7c-a151-18ca59fb5512.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 0x8605d7e0248dfd8bb279347fde4e8402d103db027e05eec777234dd03a92fda7. 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/USP6F0810018.
Fuk New York - Cheaper Than The Beer 7-inch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf93de914ebe4f53f885fbfccff4bb3863dd80195def8bd206d1f6df614e883d. 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/USP6F0810002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cea685494519f175571269a62afea1da2599f6c55297a7b861e40a0961ed43. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USP6F0810019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccd4d7014d8ccd18d03105d7424eecb99cbcf4e5ddc90bf78675d9ad6b231ce. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USP6F0810020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d129ef3e74c23c084079430fc74b43a65a50fb73205545381d3ca18ef897ab. 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/USP6F0810003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b1ca64b950581e683d9417c2f0eb5bbb701509254e99ccecf9ff9db3e9abeb. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/USP6F0810023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff075429582c5729bae608618dc4e24460cf975cbf7b92e935f3a9a4889864b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USP6F0810006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c2b4e6cb19aed2cfa3f183826e8f8015489cc8377d45a6e85d659c2496b009. 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/USP6F0810025.
Berkeley Is My Baby (And I Wanna Kill It)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f40915076942c8caeac274077fb448777ef1d36d316539d36196f33a291aafe. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USP6F0810008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055f1b3524e0cdc6f7a614335afccc5ff13569adf6ea4545f9a899e30f3f2bfe. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USP6F0810026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd155c83c0041c88944a9f0731ded1b0ac4fad6032247a0f0eb4d4dc77bc574b1. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USP6F0810027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9832bf9a1cca51d3f225de0f463157631e266742efdb7a6787a227dcecf802. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/USP6F0810028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd031b0ec5d581b4a0fe42b32a9225e4c89dc974976590213042255cfe2f55fb3. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USP6F0810012.
Dear Fuck - This Is Why We Are The Drunks 7-inch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a7a27b30df15af2ef69641a80181407f129b662efa057bb7803b3a80bce5ac. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USP6F0810030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2aa3fa00cd9d5f464211ffcadc990221f35a9debdf2fc144e79863822863c1b. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USP6F0810014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03c13ffba753e0bf7f583dabfa5ec92b1033f7eb518801ec322b7a8dcca449c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USP6F0810015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dfd58e785e02eb32a7ad6cb6e6451fdf3149941df127c697cd91f1bfa3ba6a. 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/USP6F0810016.
Mike Montano (Live at 924 Gilman Street, December 27, 2013)