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 0x91718465ce50dab483c439727e720464228f7795551db8b4bd6617f90e17ee8b. 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/67929439-497e-440e-878a-9e5b0a4949c0.json and https://artists.proofprofile.net/proofs/artist/67929439-497e-440e-878a-9e5b0a4949c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
آدم ومشمش - موسيقى تعليمية في اللغة العربية للأطفال
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 0x234f1423d2416ad801dd321fa569691c4f02a00f5ed87a087379d3378e52522d. 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/TCAFN2133600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf96c808b7a38330f7602fdfcea5604b9bfa062d6e92cc3edec1e4014f309f32. 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/TCAFN2133622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dc26b1b9176ce90ae9a0b3ca6d550f92e90b8c013f5d20ef98a9f855fd3f8f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAFN2133649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a2ae67e661a87583b7a8ae5bbe3bad0c2d52293ae0c3c50b4323f9665088b7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAFN2133676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8f0d13a05e99458d14450417f575e153acdde2cbad4dfe932f66b039bc1b3a. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:44:59Z), 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/TCAFN2133683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce473bbaaae3692645f3a0eea962639601ed2c1c003687c2364d64b32c32071. 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/TCAFN2133699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efa3861b73452183618736a85facb2c9ba7b1a34aa05f70b8dfc7107afce864. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAFN2133724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfc84541191b4d543372ce502f1838dc55ee9cca1ed9edfb455a753fdc25586. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:25:56Z), 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/TCAFN2133782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88fd45e6de947219975d382069f9886759d58b817c3ad22c2a36b11847226a0. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCAFN2133802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374e45b9ae0b0457f997e1d9ae6a2b1be56c3f365776e162b38bf2e8bc5dbdcc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAFN2133818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc06e36b099faf24c677bb01c0f152dcc028217518caf81c86ca9ef977891cad. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TCAFN2133841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bda72551c7ac2ca3eca4ccdfc0523b03e700af851efc97b966c8a13683bf56. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAFN2133857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f66bc3e94cb267a1dfdf404afe0acc0ab8cd17ad8302a322ab6291c48e0387. 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/TCAFN2133909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071709a83e7062bdb8f0fc7ea9d1f8fd2e1ec0e0879dd353f909a7f80958c19b. 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/TCAFN2133920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c61d56d496008f2c7844358a3d696734392b5044693d91a62fd16b0d734debb. 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/TCAFN2134012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e64624dad8f9cdebdac043e90c49a92131fd9414beb00b631a0a631514faf44. 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/TCAFN2134055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77260143b3038bd76e574d3b7288f24ef209b213e47aec2abb3f3c557ca64224. 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/TCAFN2134101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cb86bb651ffb26079c21aa8372b7aeccae965620219b7bc5a2fd6627c2fc3e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAFN2134117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec49a9f4774683ace04fd7548dcb8679a3887483325958014a6cf8664ec6ee81. 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/TCAEM1960077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c49e034ab98f9c4720a7bf8a2582659a62ba4c157b91566a5b267c427217dc0. 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/TCAEM1960066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f109e251a557de1464cdf65425e9a53c85f3de2dc3ba5bf56d1f507298100da. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:46:40Z), 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/TCAEM1960071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920ea68ac5d5d9f4c11b263b1e231565512ce91a226bfa7cda4c1944a2576c2d. 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/TCAEM1960079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70603d7413835d2a2b396f7d588f5ea03b6e42b4d1a3950b275bf8eab11583d9. 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/TCAEM1960080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564c9f8226c1f44656069a6c50fb394b65317af172821cf8619684433a352abd. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCAEM1960073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06111219955a1dd195a46fa72424c5a1493a749553051df0ce15bcfedbb89bbe. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/TCAFN2133162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64f02d39e011b3b790ab6ca4278686bb17b5fd7048fd5afdabcb5bd06cc7b3f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAFN2133188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7034bb4752d648fa15ed16f4a7da0d33d031dbd73f666ae18c762ce32a917dc1. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:53Z), 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/TCAFN2133214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe580d29184d7110ac90e75f0eccd3d3069de8e924c1df9bc3240ff36d94b2b21. 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/TCAFN2133237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97ecd1080bbbf7279bdc495dc84f5729ad99cc8be05ef00a33484f900f4f48c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCAFN2133267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ab2fc9544f3811a43cf54833c5c85dc50d2212fdcbb5fd1552c58b016ea060. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:57:20Z), 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/TCAFN2133284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc325e5d59093df7874e40d823ced8e6416b2f0b261ad82c499666f834d4e61b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCAFN2133297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e25f6f1b0a3764b96887314396e53ac0209a92f8f0fdd13ef6a7b6399a6088. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCAEM1960093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe291b16e1c47a1ffd85ed3b31d098117464247c2eedba8920fc193a3be2bfd89. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/TCAEM1960174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42d36ec780a8e49a66800c465fc4b5bab1dfef856f1bd28b52ab973b4d9fe9e. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/TCAEM1960104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313cacc5bc43f038dd3404fb3862dc619d09454dcde9cde78357c8df6df187a0. 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/TCAHQ2343415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f2c43359cab564274216ffc592b6c6cfb7e7732a3fa2166219a45658f1a324. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCAIV2442916.