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 0x61247f9d0e07bda242d514824547c56a54ed331b99daa4da82756f67e80a2f4e. 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/69532d0b-5a42-4c53-b6fb-e2fc02744e80.json and https://artists.proofprofile.net/proofs/artist/69532d0b-5a42-4c53-b6fb-e2fc02744e80.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 0x925b4816be5f507ff4a7b3d527efde30f1d1dd43ca2491f66dd06c17e5acc825. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZK6M2175229.
Round 4 Koori,Bezi,Pedi VS Gdawl,A2,Mafee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e89d05c4d2f50db263051581443e7de68e06c3f2c2d88af84ef649c5ddbeaa3. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/QZNWQ2227412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5498a0648365dde9e941aba96ae34379aabb6a6d721b516919c307cc24ab29. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTAU2324631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4602a488cf300fb0d33752d94191dd4feca9b2c4b90d101327e4351fc4950013. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFZ22409756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d7312da997ffb201693579853acc84e39b3c0491603eb4a4d1d699e285bc46. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZHNB2498873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f240daccefa6ac1e6eafe4f5631d578b9058cdd417b85b1bc5f224679876cc4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:59:24Z), 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/QZK6Q2470195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1473bb471373c534c8383f956f5d24b3644a79ccfa784f57a3f479b4a3da9efc. 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/QZK6H2427959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3c28868a2bc8a8ac2c239494b215f2d5001c6be9a77cf4df0d11d92df8a21b. 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/QZPLS2455302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5406221c2451aabe98f244f9ec420b0cde7a34bc893ab905c7d98e1b9d010d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZRP52481698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf054ac73533a6214f961d7483cd1c3d9fd290e48002e4391eeba2d12e123bcab. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZTAT2476941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc25d35ea45744efc64ff1ba12fe0931bde7cd6bfa80e4485ce811b6e22b055. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:08:02Z), 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/QZTBC2415245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9f2f02cbfec38b5aab28087bc67e0be3286f699237dfb73b0edf69ca50ad39. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZWFJ2462556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f3cc03ed9265a89e24809e828e82922f326c33c3f5bb1464857545f97eeb87. 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/QZWFU2448401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ae57d3c60db2a297293766a5aede277ee94d8124d3cc338518bb737759399b. 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/QZWFX2436458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37a3577f98a0f1b523f87f57de680ee5f96524a095767911d4b4da61ca75d34. 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/QZZ7X2468432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43189a5378c38b090104faf0651bd77de78d0bd8b022ca8d11bb2b81385b5b24. 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/QZFYX2532656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79666b0c7f11b834391cec3342c79db0e2dbbb14faea75dcf9a9e6a64c01c1a5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:06:08Z), 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/QZFZ22547219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4f3c5ada18c853690161b5f68f9f08b1464088f813632d831e3480ac21e21b. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:21:56Z), 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/QZES62504482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5b1de00be17afa1915f875784e7921a3dc4d32a1dc442c05345af8f9fe5d7d. 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/QZHN62587608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed6491cc2dde6ecf436ed19bc252a8987ba8cb3cca21e879982aad58e15a986. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHN92568217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0ed47fdb3cdc5c35d91e7da9d13a1080103ceccfcf7d3fb5e71638b76958f3. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZK6L2599498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4224acc3f4b27379ae86df28d7a3d58ab1e2ddd84585ac4c7bd7190ea716c7b1. 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/QZMEM2549573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f83db0af6d9a146bb53cfd7a894752e0958e78bcd91944c0426274909ed44a. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZMEP2589750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fce94298124403840336ab0e623d9a63063f728caea2f90fcd308385f44176. 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/QZNWZ2560563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bb79e04fa5263f424577dd71f7c65fce9e56b9f119af8809178339b5abe9fb. 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/QZTB92568251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3895a1d92c3c38df124a7db935c68b9ecbba93ece7f12ffd2e7ac7ac15da54. 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/QZWFE2513513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd51c1487b67e026c611e5115cb2ca5806bd64cd8c664bbd3641194c2d8a7df. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFL2568485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2451e20a7ae52586c5e835416dedbf76b5f8dd2b371934003dbced8a4f62484e. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZZ782574430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0724f183f87f65c0c843e79e4af7afff034b842cf6819282d99d995a5efc21. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QT6EE2567588.