Brut may refer to: Literature Roman de Brut, a verse chronicle in Kirchheimer by Wace Layamon's Brut, an English chronicle by Layamon based on Wace Brut y Tywysogion (Chronicle of the Princes), a
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 0xc08e53a23c352556d27989c8ce88cec24646e62894c9eb634fee4d508a6b097a. 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/94e8ee8f-0c3e-489b-ad04-b3475b8aa6d2.json and https://artists.proofprofile.net/proofs/artist/94e8ee8f-0c3e-489b-ad04-b3475b8aa6d2.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 0x047e6ce4fdb623f22100f38e9d8d71d2823f46c07f269ca48299e35985118923. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/RSA222010506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01046c3c5ba4651ba0b5891d5824303de4144f487d5cc0ea58169497a315a16c. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/RSA222010509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129c341beb1e2edc85a7a0a370b730df21a820e3fe74be13c756f84328c367e1. 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/RSA222010517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabee1280995b319302015d4aec899375954d880e16846b8c599369c2ea4d2cf. 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/RSA222010520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3cd1b74b07498e0204d5f994f1a58b1e5247019f89de626e7f0482bf818f86. 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/DGA052057644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76d64016eddfe106139af8d8cf7a9fd309e3128e143a21febae17c23ea6d939. 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/DGA052028636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e367c7c6498827641495cef8edab34ac8ccf69e7bcbb6ea19ae6364f31cab4. 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/DGA052028641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3906ab0d77379a45729e98b72e76cb8781ee2cf490b302df1298799d81ce613. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FRX282158512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5eb74f7cfd6e59266640adb6143349d2b69028b598c27acf207059c70aec62f. 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/FRX282182914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51c070f4edf15836ac8b59874186b42e32f1a6cc7fe4f6f7fa2b25c71ce2ed9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR10S2383418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7927fd58b08f8b9013b0a38c4b69d377effb9da7bba985f257c65d39b340d351. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRX452334264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbeff919b0aba274300a04205b98c46286867babbf7ff311717979104e8ffacb. 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/DGA0L2353149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8e52bb28506e3f438fe0cd9d2dc5c5fefaf9a89859acdbd2947040a13b6d1e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DGA0H2414131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cf76541aeb35452849be6ff17c3506eb1f47a3d3315ad2a77f921866785180. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA0H2414150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca19ac16c664065c6ca9c03dfbc7290a650400c33838d89e6c9908fb8388032. 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/DGA0H2414130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d3d9914b95a3cdc0e88b9b8312d7101a8d4da949a9dfb675427f415b7cd04c. 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/DGA0L2490678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5ac17c6e5692d7fd51a4d562a4c11b2232d48b871307e51b2e374b8a9feb55. 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/FR59R2592095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171d2f87acb89b47eef087bb7a03a41c40807bea09c6372518ed556475fbbc0b. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZK6G2117620.