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 0x5373c0befe1b8de87c17d329f84e9d1f6f934fd206b84193c6aecdab9e6fab25. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91e0aa31-0fd7-49e1-87c9-5be2cf1408fc.json and https://artists.proofprofile.net/proofs/artist/91e0aa31-0fd7-49e1-87c9-5be2cf1408fc.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 0xebb38a66452c9b3bd715a2e2592f545145c998ed2841fbb61e2eb7d2a18ab1fb. 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/QZK6F2256168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550c02a82e8b243cb6ed1866da4f1e96b02af6945f4d0ecd39f66f93166ab019. 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/QZMEM2207376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29b9ffb4cf718752f3a0d4de9d0ed94411e77ee11f23bc5639e5c2d5793bbd4. 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/QZMEM2206076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29b9ffb4cf718752f3a0d4de9d0ed94411e77ee11f23bc5639e5c2d5793bbd4. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZMEM2206076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce99943a4c95afa4ba4b48968c19b92b0282e6790d7c58f5ff53929155d724b. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZMEM2208597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dbf2b0a18a0abaf8e65bd4130e2fe2a2e4159339c9f9a281d2b5bca708f22d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:05:13Z), 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/QZMEM2207394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dbf2b0a18a0abaf8e65bd4130e2fe2a2e4159339c9f9a281d2b5bca708f22d. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZMEM2207394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63749acf9fa59a947ee8b88e75955538403ab3b3ae0f1cca46fdd0b49cdcf9f5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZMEN2234694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63749acf9fa59a947ee8b88e75955538403ab3b3ae0f1cca46fdd0b49cdcf9f5. 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/QZMEN2234694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447abfe256aed555c0404b2119482bfb9671edf161da468327c82544ae38189d. 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/QZMEN2229691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdbb411234bebf4f0633847ddfa98e426173e52f7a260d2a73ebffde4a7950b. 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/TCAJZ2546961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f78f279f69d143155d64f52494668f63718d58f24ebaaf6743fc16305c111e. 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/QZMEN2233326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f20347ec12e33eff716980d5b274785d2360e37aaa835afc08d30efd12ade4. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZMEN2230177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521910cc1168794fd4b53c801b7e7b8ed8726bacc9049f31a9ffc5f61ea82a5d. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZMEN2229692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938286ebcf0f8ff612341b7af653d2204d4a65ffdb6cc65ef761abbf5a081182. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZK6G2296719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f583f4b41d55e01e9cbb208d97f5c6fc23b4b66fb358dbfbdbd22df6761d562. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:57:07Z), 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/QZPLS2250433.
Humne Ankhon Se Dekha Nahi Hai Magar Vocals Only
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d98227e41c25b4bd00e078c5df1fedddc9bd4e7b3a6188df7033ca8df6812ae. 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/QZTB22240768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca20d2923fe9bb4197e1aab006c5b699e2e10d7561fd4594a71e83a66178d19. 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/QZES52388410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0495d398103a195c2d4469490963076583f56629a8fca6c542b8de6e9b773f1. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZK6K2332456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0495d398103a195c2d4469490963076583f56629a8fca6c542b8de6e9b773f1. 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/QZK6K2332456.
Zindagi Ek Kiraye Ka Ghar Hai Vocals Only
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828f1a9895ed8e22acb73eedf61a9f00048ead50e1db986d984c3bb04172fab6. 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/QZNWZ2342120.
Duaon Ma Meri Khudaya Aser De Duff Only Nasheed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828f1a9895ed8e22acb73eedf61a9f00048ead50e1db986d984c3bb04172fab6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZNWZ2342120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea97bab8075bf271d9d9cd9cda71ab4171b6b8664320357185af20b87e3b269. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZTAZ2337680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551fc7809671ff954ef0a0f11ea64fb41dfff0a455235d2942740af1558fd239. 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/QZMEP2420295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551fc7809671ff954ef0a0f11ea64fb41dfff0a455235d2942740af1558fd239. 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/QZMEP2420295.
Allah Humma Salli Ala Duff & Vocals Only Nasheed
Mere Aaqa Mere Moula Qaseeda Hassan Bin Sabit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4bc0f562e3c21715a985ddd4f1faf5673635cbe3f4b3fdda3d6b7f353568bb. 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/QZWFE2461901.
Mere Aaqa Mere Moula Qaseeda Hassan bin Sabit (R) Vocals & Duff Only
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee7028178af5a6b1d501e2ace133fd7961095841afd5dcd0dce717843bb94bb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWFW2408015.
Ab Toh Bas Aik Hi Dhun Hai Vocals Only Nasheed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee7028178af5a6b1d501e2ace133fd7961095841afd5dcd0dce717843bb94bb. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZWFW2408015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86a6be285aec71963a306bf700fab9d610d9d19df51bba7acb4162c692812ff. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZHN32580546.
ZULM Motivational Nasheed Vocals & Duff Only
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86a6be285aec71963a306bf700fab9d610d9d19df51bba7acb4162c692812ff. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHN32580546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2debdd00bed66c1ebe981db30cc2b0abe4718d55ad7026b13c8e48d431ac8ed6. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:53Z), 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/QZK6M2591767.
Allah Humma Salli Ala Vocals & Duff Only
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0580b20849c8b468b1fb29db4731e5e7008fe8dd204c7bcc4a8e83b35ccca7. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TCAKB2515159.