David Hirst is the name of: David Hirst (judge) (1925–2011), English Lord Justice of Appeal, 1992–1999 David Hirst (journalist) (1936–2025), Middle East correspondent based in Beirut David Hirst (foot
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249b4185b58f129dd7503f4cb2a4a5083de5248d78b6138f6afa24d67816d332. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e229a934-bb75-4b6d-8f88-11df1f4b75f2.json and https://artists.proofprofile.net/proofs/artist/e229a934-bb75-4b6d-8f88-11df1f4b75f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Black Dyke Mills Band: Traditionally British
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25534f51eb8f87a6c1698f844dc37e1b42e67a55642b93b6a2cace572f437e9b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBLWD0309415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d69443bb7a67811e98b9e5c81957f289c70451475527db319702d6c4e830aaf. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/CH6540840640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510ea0ea921ef5e6a7973725edd1e548dc4cab6c41c32ccecfea3dcb235cb26f. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/CH6540840647.
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 0xd824d88eaa7837a03ac3d42e9c6733e572d03d15873787526b0a7e34b43ed555. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/CH6540840648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25534f51eb8f87a6c1698f844dc37e1b42e67a55642b93b6a2cace572f437e9b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLWD0309415.
Colours of the Collegiale - David Hirst plays the Organs of Notre Dame de Mantes-la-jolie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81f317d1590e392aca863476fa6226c6d8184b13bac8843788934e3647cd677. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CH6540865907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495853983a0f851aea599c852a6e783dc8733e1a9c8cefc2bdd8d724ed2cf51c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH6540865916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515b29aa69fa7846b70157980c0dc68e178d8da9d9199cfc96979db6c0f83298. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH6540865922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ccdb72e182eddec052c458d25f0833c2d9e78694236e775747d6e668f13627. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH6540863077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91389a3ae8cf5efd67d6f3b3ae95c3cd0e27af8ac0d238094bca66c2060d8689. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH6540863084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caee5ed4d598ff1556a4283bcf2bde25fb3d3d47201f3ad8221def0e8b89e4d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CH6540863085.
Cabaret: Willkommen / Tomorrow Belongs to Me / Mama / If You Could See Her With My Eyes / Cabaret
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8032d65dde451bb71878995db2d4b1512b39cfb69a2a9118f3f7aab50e68150. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH6540863089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3487ea6e1e0d6bc300e6ff0ce8bf91556a0db6fd4cc35c977ae3c2720abda5d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH6540863090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e29b91dce6b8e93f6bc81914f61b2c8a4949c43cc2fa4a1ca998ba568f1873. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CH6540863093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5a4d2078d2a15cec70954ba43850373aecc4f309c2ed6d4fa3db57b3ff8dd8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH6540863078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcde7703c62553bd37d324c38e3eae6d082b89eb4eebb2adff80cc691fbbb0a4. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CH6540863079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea06641940dc4e38ac79bd7bdc17e457f9a720faa84f6123e54874bbf4e5495. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CH6540863081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d3ac1f68a855f7bbd36045000f8d8d7fbf9e092bbac7410dc33a97ebf575dd. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/CH6540863083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6c64ce5d0015f7b1a78bd8e8ff32b307036039a75ac662c7da4c5810f305b3. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/CH6540863088.
The Lion King: Circle of Life / Can You Feel the Love Tonight / Hakuna Matata / This Land
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed1078214331b4714512d8b3d5f6acc52043273c9e5056ab780cc485c3543fe. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/CH6540863091.