Mata may refer to: Places Mata, Iran, a village in Kerman Province, Iran Mata, Israel, a Moshav in the Judaean Mountains, south-west of Jerusalem, not far from Beit Shemesh Mata, Rio Grande do Sul
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 0xbdb133113a6c0419d80819ae3d9d554b1143fe09f82502875590dc7bb3efd7a2. 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/f731868a-4412-4ae4-a93b-eb3670a42f0f.json and https://artists.proofprofile.net/proofs/artist/f731868a-4412-4ae4-a93b-eb3670a42f0f.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 0x31ba2cd691169c15cffae95a5203f1876803aff9c87003e8de1a6322a898dcb7. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FRX201921274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88539d3f399cfd96257e915a23aa71ca2ae60bb39cb048a6361d0d7bc71091d7. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX201921276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018b3f504af747857ba07d27eeb9b542f99036b898ef36c9b21165f75330a021. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/FRX201921278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008932010088938968230602c2dff31f248927604dd0e38f426427f643874278. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T07:27:32Z), 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/FRX281911078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb054923502ebdb725264d3bc9531370b3e8b28e07d29d27cb279dc360d9319fc. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/FRX281911082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbfad50eca1713cd95753722f152ea64e00cebe0745d77171787a6b33928c14. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/FRX281911085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfb073cb7bb21d2f9595bf97069ca35aec12f5f9036717d635af9e2192b9467. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FRX281911086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a6826c3328da31301e6428d62a4fd98078d9ec029d58637cea35d04c8f13b3. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/NLRD51966121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f691172c29f1afddb6160633093bd0ce9dcf46d909a8e5754bf00fec8aa2e2. 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/NLRD51962980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca71ef02b7ab2776b18fc9e8f25c28c4ef1cfa454b816d6f679cd8a884aec7b. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/NLRD51962370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6badeb3f3eb69c2222aa372c0efc2c6ef737a9e42b7790ba0028257b5fc38269. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/NLRD51962372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefae877b11c2eba040070059cecb1c23f669cf1d041037302aa800e40b782b9e. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/NLRD51962373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb776efda609d959f4e0b5c06d714a3dac78c14461d785d6ee9be3509435e9a. 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/NLRD51962376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcad79de6fcdee7cd436871855579dabf2e3b9d8fa8045fb8d79202681d19d29. 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/NLRD51962375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080cfa6237c24f8bc34fce77c3f200224d0e28e9e0877d611252834932e0dbb5. 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/NLRD51962377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c5862b9a0a57a094eeae81694768b40a496bdef31573be51eaf48c5b79fcf0. 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/NLRD51962378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9769c4e0f08501c8ee59a5de171b27b81fcbf0449f970f0eba5becd4988c0062. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/NLRD51962379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e60bd180b91af3b7a8d0c0faf5a484e0f862575e0d537bd215618c011cf99f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/NLRD51962021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea0858aa9a6581410d1760a0e54948a14a3c43d015c37ea32150cb070d106d7. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/NLRD51962381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e2785e88f5cedb1d31a8b4bf4b0ef3c23dad4425930a9aecc63c1c442be911. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZK6P2113853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe61365465f10bb43c6b8eec9fe954de9d9f6604824b8038cc3b04c6634f504a. 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/QZK6P2113855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dd24d52a247b73c46cc124380e8b23a842af214f0d18e50019b4a86265e84f. 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/QZK6P2113857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e65b584791156ccfcec726b85d33a18ac977c13b866e7a6c62471a567f70e0e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZK6P2113861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542da917ed61aab9bf7ed3404b5ef279d57b81eec93e613c6baee1ca449929eb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZES92210063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5731ff26ea03616cfb441987ef0013a600f9c615bcaaafe716bffe6537b38aac. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QZPLR2233073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14626603b53ca55f8c80447b87c15e945594cda3e7dbbb2e558072ad12031ba2. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZNWQ2355851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65651019f8fdffe6182248fcadb7ae3718accbc7c93ff7a81cf0162254cb13b8. 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/QZNWQ2355852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d28dd0aa113db2b02c60d579fd4f47e166baa1e3e56f3d877c4273aba152ff. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNWY2373849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72598b6aeb4a79c9888d83a57f10c6576cd91312c341a04c048c27a3f5783b01. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/QZTB62365517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec6c2fc0fa8dce0711d63d743a1e1e05316c377ea2662e8ed6a9ed516cd6ec9. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/QZWFH2378051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d48702aec0efdc16d24141a8dd331867682561c0084ea28490eadf921aadf6. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZWFL2335034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a112f59310b351a771facc2aa518c347b47336a0d3df69a7069dfb74dbb4f04. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZFYX2471267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c001b485a306edec9199bf75aeab04eee08cdcfe854ef0016d0d9aa328ffa7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM6P42452734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16344a6ef58309ea3dbe1aba7b03671a4e3240aae4901e12ccb30820fbbc4f7b. 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/QZWFQ2403865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043aa6b96dfee11420b4e3f33b13a2f346566c130947063792ecdcf5e29de201. 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/QZMEQ2517938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0797d5f9df568ee9e478417d486be77cdca6dc7e237ff93b8bd59eee673c4ad4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWW2527821.