Food House (stylized in all lowercase) is an American musical duo formed in 2020 in Boston by the electronic music producers Fraxiom and Gupi. Best known for their debut album Food House, they influen
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 0x8a77da606e5acb1a6c55e7525c5815cb584f7804b09168505a7f48c494a695e9. 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/333be54d-a067-4f3a-98d3-baad7f0a8c43.json and https://artists.proofprofile.net/proofs/artist/333be54d-a067-4f3a-98d3-baad7f0a8c43.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 0x4fb1d1ff408303c87dfb36cb948fe4a94c3cbaca1ed9da9e9a4402651a40e974. 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/USZ4V2000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a381d300227f4f0708986033bb18387a11dd4f526de74146b53b00d96e79b1c. 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/USZ4V2000382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a7edb154bd8651e92e256c7d52fce2d0b5002c2eb52abd11224dcb890faaa3. 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/USZ4V2000377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259398f9cc1879f55ff6c08a7e7ac78edd06b2aaf62b1ab8336e117708a2e038. 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/USZ4V2000379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94557bf307dd5617ac19d48b15c94662e2977d697aed06c65335c6eab6a860d. 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/USZ4V2000380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2ac1b9c0db523f99ce6e272633c0f818ab1960bcc0b6080cc06f1afe5cc442. 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/USZ4V2000381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a381d300227f4f0708986033bb18387a11dd4f526de74146b53b00d96e79b1c. 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/USZ4V2000382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfe5549545f7962ea7ba561817c4974223b982ba2b3c6ce0d5e03f2d9f3b3a3. 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/USZ4V2000383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870effd9f01628589fd3471f4a99b5e1d3f766125016b8ec56046b2cb04f828e. 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/USZ4V2000384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884a9a8ba97d5da365117d55a7fa5bf1d421cead5b5b034911dd8346eeac326a. 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/USZ4V2000385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae5448888a5ce8e08996b807a9099f6fb801265ce6073b96b5aa7e33e071b5c. 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/USZ4V2000386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c3d974482c587ed9865a7e102d3debe689be250e78a254b6d92527226b96c1. 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/USZ4V2000387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7d0121cb8ecad88080f76271bf050987e63ab3b0c8310a7820f2fb19787bba. 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/QZHN62144125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac5c271661d43a7c0b806e0d116d5e570f97b39fd95edb91ac5a94d1365b61a. 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/QZWV32455542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366a23c9186f985246ec116a93956cd98f0fc321d672de237775dce7b8b33939. 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/QZZ8A2473955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e9410e58bd137655e8aed00e2cfea51b685166c7635dc7b20e9aac64539085. 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/QZ5FN2535188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd810f47f3b15d895e88d770d8d17c91798e3cc88f35cea3c9be55f3e349ac1db. 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/GBRKQ2548603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d87807ceffd96fa0cd29c5f254fc332ae96cbf377d7538dcd91dfc0d578c5. 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/GBRKQ2548605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b8b9e2a5290f2ded443eee2051dcb005e5cb8824471d85129089c04b9d0f7c. 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/GBRKQ2548607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac5c271661d43a7c0b806e0d116d5e570f97b39fd95edb91ac5a94d1365b61a. 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/QZWV32455542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d773134ef2e5be25f8ae9b8fdfd8ec7832c824853a027d59aae8ca0c2e5ab7a. 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/GBRKQ2548620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e9410e58bd137655e8aed00e2cfea51b685166c7635dc7b20e9aac64539085. 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/QZ5FN2535188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb964add70544be4e87725b501f089860263a54792c7ef7f45b1c377994c9620d. 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/GBRKQ2548622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88278df60979c8d71097907d31eb67fa1f8d47a864b10a9a1b4ba01c5a88b628. 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/GBRKQ2548624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa408950c1532f57c119971c28d91b1c98f37c61b3f126e1b6b99874d592a1b. 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/GBRKQ2548628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4e5b30ae3a7e4b1fe23ebee775e4acf987e76d5d1ea2b31c837e57f9919c36. 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/GBRKQ2548633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ae1658e13d9f45a51a3983e4927e42188d02f55e67f9e2a6311d216534a30e. 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/GBRKQ2548638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf466a0a8962c2be8669527e7fc2bcb4b5bed17c78503cab59d4373f6a4f74604. 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/GBRKQ2548641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c91a829861581d1f831ff1cadb21a61af7144867f646fe05a0a5fc7442b6ff. 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/GBRKQ2548642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366a23c9186f985246ec116a93956cd98f0fc321d672de237775dce7b8b33939. 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/QZZ8A2473955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecc09178f71cb8e55ca35de9d958c0105ab0a24cda198ee758af3d4c64bdd4f. 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/GBRKQ2548645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd65f0d2025075ce450d596fdd9a4ffa1cce525985eb5a2e8a33edb3640fe048. 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/GBRKQ2548648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5523d48c922b60535c88e9687c257648798278aee5bebae9b68d623fee8b9759. 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/GBRKQ2548649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb1d1ff408303c87dfb36cb948fe4a94c3cbaca1ed9da9e9a4402651a40e974. 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/USZ4V2000069.