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 0xc3404c39a5d91b73a1d92713a56eb22bf2fa3d41abd3d19188d7210e117f5759. 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/a498d4ee-6181-457a-b414-af1b82793bde.json and https://artists.proofprofile.net/proofs/artist/a498d4ee-6181-457a-b414-af1b82793bde.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 0x8093506b68659088837d74a0d04c960427df43886f1c6cf317e399218181eca6. 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/UKZGC2402396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb992cea1a82f80127a4ebe636caa11b243f66b87b389e99e430cfccdd2a820. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/UKZGC2402304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cef17c731087e3c1ef0f6ec688f1bcc6f09e3b6e02d361271a746c74358de1. 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/UKZGC2307222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd26ba5790f35506b82f3907637c703bff16a3e14446bc6fead93299731b9c9. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/UKZGC2307043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19b3983f25c79d1aa11ffbd2838a8e177b7d4acd2db7785fda31094f2f2bd8c. 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/UKZGC2307143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25eacc71c58a9ef7e1d27944b0c7f5d5584681ea2039e1723a81b512b4a2e7d. 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/UKZGC2306102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c033dbe4d44cc183df8c84d57abfa79a67923c4621e21a9060ee7c09a90d19. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/UKZGC2305478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ce5ca6bfaf3c93e43b1b3dc10dbc3486cc2ba4ed750c22afb3fbe390f1ec9f. 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/UKZGC2304611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cd8d47bbb1ee3fedad32679d274945258741d55ca79ec0a5ab04010f5be1fa. 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/UKZGC2304612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27da1c59b5708c11d5b5927305eac396fab706ff8b025d84143676f169abf564. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/UKZGC2304613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de2697fd5647c2d08a1a05159a6ad188b3dcb2289972957b986f43765efd2fe. 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/UKZGC2303752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4f52ba9e099de39150f591c5030d0a5b37d4a225de62ffa4f0356c34c189b8. 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/UKZGC2303753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fe3e43a7ed1f3a427a6d00665caa36c476ce9ef7fdfdce0614f9ca8770e005. 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/UKZGC2303603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9f92fdf8c5924055616dd58d88875682a4f1cdb733dbe0c84df42cb399d3f9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UKZGC2302825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06ec57c3bffe1697d326e9f24c804d69b48db990e2ee209e85f95be54771217. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/UKZGC2301950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb302dcefc62bdec6f93b9840b4dfab2198d6375c36cf8341dab289359892f8. 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/UKZGC2301761.
Maek Rouhi Daqqat EL Qalb (Lebanese Version)
Maek Rouhi Daqqat EL Qalb - Lebanese Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621dc7f7474555ed4093c5538b119050c344fb63837635352c93d7240f0b4996. 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/UKZGC2300689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e660d6122d90dd3d4d55a3bcb4d598c4d44c97018a754a8a0c2278777db229e. 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/UKZGC2300434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff58a6e947e7e406ea8d7109606df7ef9bd89e8621da39c6cc47ffd77f4c1190. 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/UKZGC2204599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b75396affb9125c4550e240b49692df45941925c86f81adcf87d067963475a. 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/UKZGC2204323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794af1bc3073afab9eaf8c78c6ae951aa03f7930ced8c95b35991fa406ec2ad1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/UKZGC2204308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48892eb76533ff880ec5de42c7662e894951f6ad9fb58559245d36c02000480a. 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/UKZGC2204285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1461507616827503a4418c0ffdd7b79461d9de8dc6a1096276811d67592c654. 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/UKZGC2204283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd796e22d3be8d9131ea00e73ce7562df05d35ded4b363f9af36222e634f6a1c. 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/UKZGC2204170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3a607668be44fd32a627c0c29728c314a0af944df1158e2dbfec0f95939b3d. 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/UKZGC2204113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f8f9fe698382f070710680073f6d50e4090a96bc87524bb03cd2b7909d43af. 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/UKZGC2203912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bc7b6742e6d8a4758a894246438ba545ede3af0618e8562bf466a4b7bb2601. 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/UKZGC2203882.