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 0x40c918a1d79b48e9fa5d8d02692738dd3fe4c27f74bb325ed10fc9e3f59031ae. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c11edd8d-4915-46dc-853d-a26c811103a4.json and https://artists.proofprofile.net/proofs/artist/c11edd8d-4915-46dc-853d-a26c811103a4.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 0xb2d350bf9ac11bdfc7b6bc532e0d3b60e5d0ebe58262f96afb9bf445f8e302c6. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZK6P2034339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1feca59f5a5d9eea3cc0729fe2756b2d63e72f130f8c5e56c72a11f09c32c5bd. 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/QZK6P2065807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8f50721deba5ec8a4b3e6e56d9e777a8c5895c6662c61db85b97a999566a8d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZK6Q2051912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0dab326b49841f3978885667bac05b3cfc10a1a481c7f7bb6bbb4534958b24. 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/QZK6Q2059376.
Efkar - Gönül Dağı (Enstrümantal Duygusal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5775861ed156f87688bc5b3fd2bd13392a8c2622bd0cddbb7c16a497cf41266. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:19:16Z), 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/QZDA72111314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b03b3dcd21e8a14922a4fbdc13c60a1188b68fbb2b5c74a2c8bc5a5ef45764. 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/QZHN82170159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa835cd69be2eeb2442e6bbfd2f257c1d655664c8ccbac323e863d8449e4da893. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZMEN2119490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7346954489e1a6200551da8a91483c6c7889e2acfa4ec01badd955f75db4b9c. 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/QZMEN2174798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56adea50bff04597ec8eab85d327f840605d9c0960065122eee0be93e5f02eb. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:14:37Z), 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/QZNWR2132019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7c99d7222fb3e886be5ff5ba9a33254d0b52583980725287269f42d8d64ac0. 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/QZPLS2126515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab764c00c36e40a8ba12872b8abc77ffe711e6d74c195999d1f55bf2936b992. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZRP42138276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df3468f2a9f010f97523f0082b67b8313db0ad69de88a79ab7e24e1f2d0fd2f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZFZ32216486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7b218f6ac58c6f3de6ec2bf74cce0c8053002c95a5cd52d15c2fcc0d8017e5. 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/QZDA52262495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f04e0e88dd1e530072ae31b108e601ceedef7e47b8c2ee75020b38d32140a8. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:36:48Z), 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/QZES52270536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a6704fd66eb96b6b18c4083b61dd489ae0e9b05e8a1e0216004e078979957f. 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/QZES82291927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5c6d481ba955884fa3626016d51d64cc795403f2697b9f6e12f5452452b27a. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZHNC2214031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725fc5f3695cab55e4639d1c74fab933e4c2262f3cb058dd5c8fe53e20f81540. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:02:27Z), 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/QZNJW2205089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dc40f81d3329c630ef54306467f67aa0fdca81560aed73cadc26145059ef42. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZNJV2241553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38da5403d23879d575bcc113acc748c43d43507accd84f886e6fb076932bfa45. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:50:44Z), 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/QZNJX2222638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85b8577012e2fdd16563ea42613a5e0d630ea1e073bd4329e9b4e1d4ef545d5. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:06:31Z), 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/US7VG2323389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca940ac02f1c34a5b1b7072792d797ce2d1c024c43db4dadd5285c9586b6e48. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:23:57Z), 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/QZ5AB2393664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213a757723efc4ddbf2d2093197c381a6a0bc706a5b5886f1224f09450cdb1ed. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:01:22Z), 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/QZW9M2352993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87331487dbb865c808898f6559dd2c91db68e4f18efc4077e4e4eefa25dcf7b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZGLS2466817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c365058fb6a3415633a81c8e11b409e1dec086848255e41e168bc14f0b1053. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZW9K2456521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad166befcd8f420a491ab4f7c9fb6c81f2eec4b0c287bbc714d85f1f7cb1f77. 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/QZW9L2440734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f08b16b8734200bbb1860d39b2234d0907d029791e1bb9c30346590d7f02eba. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/DGA0S2407290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34d864ec2b5267f2e61cfe34f60b20a48b03e04e94310d7cf898f041d2f9ea0. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:58:39Z), 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/DGA0S2425634.
Kütahya'nın Pınarları (Ney Enstrümantal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c11871bdc6216480cc9708fe70efe79f136fcd11e3732113bf0f1ab9dd8b846. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:30:52Z), 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/QZTVM2525884.