FireHouse (also Firehouse) is an American hard rock band that formed in 1984 in Richmond, Virginia. They then moved to Charlotte, North Carolina, where they signed with Epic Records in 1989. The band
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 0xacb3b22d8d79a94926df4170be72b386ea3c7fd0ae0e43cdf7d224d3128017c4. 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/f59d7ac2-076d-4175-9faf-8bfc42039bdd.json and https://artists.proofprofile.net/proofs/artist/f59d7ac2-076d-4175-9faf-8bfc42039bdd.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 0x0d82034d641756301bf10144485c65e12858877289f1a4f82f9129105919b0d6. 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/USSM20000617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9c0b2683969016bcd047dd1a20629bd16037556629bc7e49c1726f573f7e8a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USSM10016196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd303145e7b45b806e2fd87ca1fc2cd404a8fcb4b243928b15ea33cb3cf115b9c. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USSM10016198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d87b1b99cf3e6ec113f3ed82b116ea553f79a72c5e094da8a8dd02016be609d. 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/USSM19602673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dc1aafe6c9a033cd0d313d1fae841000fe3360aef591c4ac04ed103af70ae0. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:57:27Z), 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/USSM19602676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d5e9b7cdf18f7bbe2d71c4d8bc0a3d1fd8a0d65a4814805734e187b507f9bb. 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/USLE19835101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebbd84e7c9ebe8bcb7788c8986b7c487014ec7a2791a6176f4177bdaeaa81ff. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USLE19835102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb3b446787cc6c8a1049eade9606131fe1f27c3990d2c89544302504fb50b40. 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/USLE19835104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d4d028fe02fc909a368c8f8dcd2a6557e688fdd1330b0acf0def03d0e3995e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/USLE19835110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d5e9b7cdf18f7bbe2d71c4d8bc0a3d1fd8a0d65a4814805734e187b507f9bb. 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/USLE19835101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebbd84e7c9ebe8bcb7788c8986b7c487014ec7a2791a6176f4177bdaeaa81ff. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/USLE19835102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb3b446787cc6c8a1049eade9606131fe1f27c3990d2c89544302504fb50b40. 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/USLE19835104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1de9e454014230705362fc61f3ad18543a6d815d008ec1cf0c11ea627ff4b9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:15:21Z), 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/USLE19835107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f98759741972731b9e574d34e78ca8b555467b198cf0d2f5fb7b5f89b1a53d. 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/USLE19835108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d4d028fe02fc909a368c8f8dcd2a6557e688fdd1330b0acf0def03d0e3995e. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USLE19835110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b522c4e4ae5dc67ca69a12f6c33183e3a68ff4302277e2e2f1cdf778b61072e. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/USHM90406526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd2b714a8d615389bd944259b89c1123f99d69476b82849483448f682446e73. 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/USHM90406527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9973c9abb8d0762ccb7d33055787fc1f867d674c015c5a7f4abf007b96f4cef6. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/USSM10022378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95fa53ce1d2e8d50601c7fdc2c959447830e94cf75dd3f4c4ffbe37dafedfec. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:35:52Z), 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/USSM10026983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c1b71a84fb6ac614fc9f02e7c1cd0a969baddab6952dc52a687f6097d021ba. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), 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/USSM10025596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4723c25fa5d023ac7f3cc1bd57ba2ceaf1e35d8d972a4df7ac514c2b0f22f307. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USSM10024975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe529c4f42f89ba2b46ed1966a864f5496f9327cd0c7a7e02711610bea80d019f. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USSM19500278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85755ba9ececc07ac4dfffaaed15d1e8093e8b5219d7ce07f1471eae68626b8. 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/USSM19602667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0233b0a55c71d63f5e2e3c13f7941b81fc70b48bf7c24c923fbc330b0e9b5d4a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:49:42Z), 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/USSM19918736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876af14c60723a27377ff2890ce985b2e05f23bf1b02adf0c06bce616233dc09. 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/GX5MX2227450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c023f884fe42caf6bef05c4d1772bce721a2e19c9d0e2710f4ceaf7ae8ca7b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GX5MX2227692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b2842eb44bbf0b5090c4e909f6f23ba81a327d72459653eab7b5f4514f1142. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USHM92537685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fe352376b61a928c4ff3da871986565a08e0ea56dd0c26c2c56e19df2c32db. 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/QMFMG1354981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4a37709253596df25b04833a3f8f36a368f5ce2ec276ed2f83fd8b274400ba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USSM19918738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f69efb5cd742d5c7f026a173f0cfc33dd0fcbe79606c8659c0f702bb06610d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USSM19602672.