Matthew Tate (1837-1920) was an English poet and songwriter, who spent much of his adult life working as a coal miner and living in Blyth, Northumberland. Early life Matthew Tate was born on 5
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 0xb20c9e1539c64692a0ba64496e718481c486724d9dc8d14452398f4a8cfec146. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/723413e6-775e-458b-9139-09cb3e8cb3b3.json and https://artists.proofprofile.net/proofs/artist/723413e6-775e-458b-9139-09cb3e8cb3b3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16464b39711df3a6f3cd3e546866887f008d62e84044dfb5997f723213d5ee5e. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USX9P2034840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4994e547404161f280ccb6b207542c8cbf2ba8566e5c2a409330195191fa881e. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USDY42227466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb71c994476e56a0d8a8be33b4c366d03d6ea4a1febff7c17e25d0703605042c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USDY42227467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93b83ec9318453db8889ec18d30f83581f8d4897b88f62ba83282303191384e. 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/USDY42227468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019b8f7a36e73336de0a65a7ce38c6b0298aec6579d223c68db7b8923734b8a2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USDY42227469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17267761a9ab99e5d153786a21f94afab4981349ed54f600a86f9736a345fa38. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDY42227470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0387d9ae9a5c8096a8dc708089da39ac29bf15abb2b534a1313fac78ea38bc8. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USDY42227471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39047051df3d944885eec02bb0b45b93b9dad09fd137dd35fab75b34affb91f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USDY42227472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae87000793e2126f50818bbc451f0a47516fb43a45a8c6d7cb28f8d14f7e9f80. 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/USDY42227473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0aab7962f54cbb14aae4ec31ed9ee133d4c3cc90ba3654fdb387483e3122b9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USDY42227474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e760e23302f185a3c956e1f7d4b562ee847b6da297c31994613cc29f2f1d3f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USDY42227475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de9bca4045ae301a365ce54e87bc4d2a08cd5421bd80a3e80c479bcad8d6871. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USDY42227476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9f3f9fcadd5127b682f3bab479f199cbea4b0c56826937c10d6b5aef0746e1. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:20:57Z), 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/USDY42227477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaba765afcd01e452e39f013b799e9489a7e60fdc33397638a6fde9b38985a3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:36:01Z), 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/USDY42227478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77614768e4e1e84e1a5d04a41a8e91482a851263d14d6e0c91ef270080dd5d8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USDY42227479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b94cb08fed2c3a25755c228412c6c63b49a181cb632ed9c7f54081f0c22176e. 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/USDY42227480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744454fd71cae7579e887f223ffbe8a114ca5a275cd83eea05d16ceb0191d729. 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/USDY42227481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed967acc266b7b2c0f76239b5df073942a2d584903554a1e171778b033333161. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-17T08:52:45Z), 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/USDY42227482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c417e87c84fe846df006992908e4295ab73261a6e88acf7da27d411c73293a7. 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/USDY42227483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d52331f1fce4ac40f27c38ca579051df223a3518bdbde9b2b71b0ea6e1d11d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USDY42227484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa331b3933383d1bf4608e3d0fe058b06c8b7f9b211683965c49616064feceecf. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDY42227485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a11e708009da8e45dd74a74276304dfadac15d19ffc2a06b2ac953ff654241. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDY42227486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b6ec925a2485f16a1503ff4e63e3b993d5f21cf66639e7200e838715f31211. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDY42227487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b4172377f6fd572354a1b13a95b6f137771644ed1da29482f403c4dab3479c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDY42227488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4605afdbe855746289b77ae88954d90c0efc680b5ed99277d665c169fc18363. 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/USDY42227489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883e785cd6d34912db7a40a9784b24f0afa89c987e2cda4ad0a1ad00843e0d1b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM22488547.