Amat may refer to: Names Amat (surname), surname of Provençal/Catalan origin Amat (name prefix), Arabic female name prefix People Ismail Amat (1935–2018), Uyghur politician of China Zain Amat (
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 0x5e53bf8022a407e0abf4185e3ce9ca993a065e3424a824bf43906999f9895916. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7dc171b-e8f6-4c75-8a6d-138c66b1ec38.json and https://artists.proofprofile.net/proofs/artist/b7dc171b-e8f6-4c75-8a6d-138c66b1ec38.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 0x99ad37e2220bcb03377f24926b0c6ea3e2351664a11d4d75c8f0babe587e415a. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZMEQ2028726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2eb8529236205c05a511c35c8491fbb76f6db335ff1d01435525306cca91d6a. 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/QZMEQ2028727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c43a173e4e8d2c53a9e4cda11f66bd7b5561a40f39b64e543ef7cbb191d889a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZMEQ2028728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed46f7fea87bdffbbe96350df97735a5440aa9b702f0f51a47d05e10f7065617. 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/QZMEQ2028729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c00155b18a64d0f9f133499060098984326ed6669e50fce16c899526d5d1eb. 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/QZMEQ2028730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a920cc896d0323360110f4ed551543c22b51d0cd70f1cbe1476744661bb596. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZMEQ2028731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1051f4f2516efd27783fdc4b56b7f662fc4559b38745178dcb50b198f8e334c. 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/QZMEQ2028732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1860706ff7fe5db3c0bb0f70779b12f750d1f796cfb14af40290efd6b74f33e7. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZRP42386388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e95fda4f9d64f6e2e18f8768486db5f25629a53a85adeb4fde093518588989. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZMEP2307588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097680c00edd2878a658990ac42aec35ea4f340957e23636f64a9a277699675a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZMEP2307589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366f4693247816bba87af6ba22f00035ff14116b7896212f3511f1d90202d0a0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZMEP2307590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1586079e5936d6f87f5391ffbc19df4ba3091310bc9b32de889a3a1c9b94d89. 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/QZMEP2307591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea77141af3c81f1dba1b8bb27767c0a385d5c084083a34c0bec51f8bd645e2d3. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZMEP2307592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dd685d6dce8245bb9874002cd765fa0b381161defd438a4c1d0cb0b4721cc2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZTB42291307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585ccbb7e9e0ac5d73bae10f4e2562b3816882e30f62176f1271f9cf5ce9491c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTAW2282412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4266b96e96fa1de83c5c19dece0cda9a1343503b9f800db09743bd02d867846c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZRP52216118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bae5cba2503ff75ee7efe18bcd6c9cc489a18d908031c1596911ffc53a31c6. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/QZHNC2271158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2825dd348f5062cb0a56d61149aa91aeeda513995e30b1e9b068dbf49f5b56b3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHN32247348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891fbd45dba8b72dceb6595bc4aff28482ead18a1aa4a76ec4d865e63580a269. 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/QZFZ42292702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca3c281b9dcd47bca71f2eb51b83c749404a49d7b8db25a67ad98b3508851dc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNWX2106439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae228d04fe5523c15645f1ca2efb20c9d7b6585ac0555250c67f53f3bf24ba0e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNWX2106440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faff3c53d91210df9e1bad7d3bb6b3b79272c0b23b039d32f0fe8bb6c618cd6. 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/QZNWX2106441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8353b3f3dddf18efa62f3508bdb0152fa47a0c883856130c6030257f11e85b4. 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/QZNWX2106442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8951c26f5ff9b979f88648ea791649427c2e98583f1a8df4b1784e37e2ee0d7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZNWX2106443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e38ee8260d9196579480d02f938aa13f92891a18f00a7c403c14d4c61de4cf. 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/QZK6M2159003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0b185420e58146594c36ba6303b3872c4074611763e13cea67e688b4b08d38. 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/QZWFQ2407041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0378a0c63ee6ea94fe6f78a1e6df88b47c3ab9823a667603a53d410e4255744f. 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/QZWFN2483994.