Urban Heat is an American post-punk band from Austin, Texas. It consists of frontman Jonathan Horstmann along with Kevin D. Naquin (synths, programming) and Paxel Foley (bass, samples). Their single "
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 0xf9e26deb1f9fc765cc532edb4c4e9ca8a294625dca40fbd8d81c610f426d3f96. 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/79080a41-083f-45f0-b9ec-2dd4b72d64db.json and https://artists.proofprofile.net/proofs/artist/79080a41-083f-45f0-b9ec-2dd4b72d64db.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 0x6bac031b6ddbd12a2ea8aede3ab50dedf1fa3258b32ac6068091a8615faa08ff. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZS7J2251565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c4c7a346f97e88d4470087e8468b94d267e95f01825fdd5796e9b6cd6bcc27. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZS7J2202263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eab009e7f1ab8c4972ab0795883316556c590d3c8cbce87b83823325718960f. 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/QZS7J2264831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cce8dbfdbcc02cf92d1fabae2cb12253ac9880b3c5a70aeeb54e47a42eeb75. 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/USA2P2021592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c9b9f7131ac74af7f1c50183e9b306924466cf1c5949b5186c82a020c2c620. 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/USA2P2015198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c35a2aade8a3bb54ca2e780f0b4389d47518e31ad1946530d85280addbe1e4b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZS7J2278295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6846d9d76988cb7e41f8b8489a58d1f9e6ee9d5b5f2bbfde2c5e961be1006b8b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZSYP2243288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b380ebc18123dbc2d4c6ba8959f063b01f68089df8d05677efa45f81ee85a2. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZTLA2389093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b2c5e0eac0870d0ad32bd34c0e56c55afda596e50fd125b6775b274a5960d2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QMFMG2322887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29137dc0d51c6b9dcd2acfd4dc80dd958ab5f535b82a675f9d3dbf544f4bfece. 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/QM4TW2489353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938a8e6d01da1a61cb4bc624e4fb4de86765c33fe040cfd3feb2191a7fd80586. 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/QM6MZ2447617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16e4f892e9df360e572ee321fd95e4dfeb31a0be0130d5c8b3b32be3497bb6b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QM6MZ2457526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f617b284ef8bfd420798c98d46d2aa0f27e81a1c1f598d245f597405b6fac6. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/QM6MZ2457529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef1579de9178240d8dbfc40771de31011521b22013a6b7e0010685df33c18c9. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QM6MZ2457531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59463ec4aa7bc1db3f62c671543ff7307d9557b62d8fadb9c05e181c509beb9e. 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/QM6MZ2457533.