Radiator Hospital is an American indie rock band. Though songwriter Sam Cook-Parrott (vocals/guitar) is from Grand Rapids, Michigan, they are now based in Philadelphia. The rest of the current lineup
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 0xcf4cc9d69072e250f846fd132da9726ab05e07392717cb14882164a9530000e0. 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/86cb96e5-e2a1-4e8c-a96a-054bbdfadd56.json and https://artists.proofprofile.net/proofs/artist/86cb96e5-e2a1-4e8c-a96a-054bbdfadd56.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 0x2ee1fdd7739a39d2fe39ccd3467fe410792378fc5faaeb2d426e7c4cf84ab425. 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/USA2B1700329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c1838b0719ae188aa33aa2df1515a283bbc06cf516df6618b890ed414b735b. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/USA2B1700335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0e9df3c9e6ee26756abb5fcb030cd3d4056402cb05fd96134ce4cd546d0f6e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USA2B1700453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9debe71b96fd0a8208163d30b2755af18951cb758380a58eea6aad4d189a33. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USA2B1700454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced2ee71278a13d14b1d79b1386b197ffd7edd6d213a6551138423d6c0d5479f. 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/GB64T1504104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588047a974b1ef7d9c2ac69142a6a619577f9a76b592a41d8518df4934f443d7. 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/USA2B1702804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcf876f8c01dc2c2a2d8f53a2a98f412667571d66816ea10197b1c1bfe7e90e. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USA2B1702806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f24ce1b1295b7590bcadec912a2c98d826c1d7ca75b9c2b6ae5892c0b4554ab. 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/USA2B1702807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2ff102996ae28e60fc09a66c68c092308a4e92b60d290261d58be8b2feffe6. 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/USA2B1702809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d061f5e966d4f6bd6cc4317b535de55906b00290ddaa01b655da640a98cca3. 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/USA2B1702813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198849dd8667779b33c9987e58c34fe36f9b9859a365142be1fc79a65b45ddae. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USA2B1702814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbe8799fe952924a3816e0f561932d35dec350788b407cc0dbf0062462185a7. 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/USA2B1702818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82ca7145867d7438ab9de40de894806ab06a812e02ec022d0f63e2f8afc3cd2. 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/USA2B1900870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed058788202090bd2e4bda0dc81ef7cbe0770ea0738677a93a3bd9bac1026de. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USA2B1900872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6d49476b853a8d515e3cbe680396c254cdfd2f9d01d3f895ef702b241e95e4. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/USA2B1900873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367f41142bda35a0d126820ebc5e1bca588713f358b7848f98918c279647c514. 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/USA2B1900874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85db3978ce33645c119cc17bb177b42935fba7ec98309b06db923f10ed0bc18. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/USA2B1900876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05071671821aad692228d8098f73149c56747cb1bcf8545b313e3a1b8339dc3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USA2B2060193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d3c96a97d035423b09c695b886a12d6730ba631ec4571c782428e89110a319. 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/USA2B2315829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6531154b287cf71e9d48a9214cd9a49781ad022367830e6b234920d04e10dc. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/USA2B2315830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fcd1f1ac305778d91a33e92b283c53faef0f6ecd2f4ca057456e899aa4a96f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USA2B2315833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554de985bc91b2b6958ad65e9a23156adfbaf02362c39fb3a68479b4d5130879. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USA2B2318838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb855f29dfb68e9eb12775ac0fd7c86126e0df7caba6fbbd9b0fb185110ca869. 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/USA2B2318839.
Krill / LVL UP / Ovlov / Radiator Hospital - Split Release
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512ad7d136067c94a625c654f981cb8852b0aa5996e8c1b585e0b83cc3c8ada8. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USA2P1436015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27f2aec84b279de4e7bfd87fe2b061d000f05dc26c96bae5bf88a50411f06bd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2P1436016.