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 0xe084496525e1c880dc12778b345fdc227de2c44af075db697faaf31e72d7441d. 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/58b5b23d-32e0-4347-8d27-f7224094919b.json and https://artists.proofprofile.net/proofs/artist/58b5b23d-32e0-4347-8d27-f7224094919b.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 0x752123608ff8f3e803fd97c661ec34419a34cd45c16409dd045ff928bb599c64. 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/ING212324868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bbe4d796e67ee62374e2f1c39f42c4cbd7d017d667f64547465f3072dfa352. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/ING212328927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2ed96f57bb7ed676db863de7948e719ada652a4461c77ddc9e9b1c9357a30d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTBA2339557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4518f941e88ab49107bfede9ba1a462428fd41d9576473283000b059d24e9c. 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/QZTBA2366555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bed160dbf48d2a4ccae1ed331db161a91c7d235b6d607f43a089fc8188c6d7. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:17:20Z), 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/QZTBB2301228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f2b0002144fa984f2a91a60e0b0650ddc82d102a773b882b9feaf5ebfaf515. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:53:59Z), 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/QZTBB2301233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe494f3be7397d4f4eebf28a095347c6aa239e36bb98a45ef2dcdd0c5e30d4836. 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/QZWFF2399624.
Yanyp Men (Hajy Yazmammedow & Akgozel Masadowa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3a49cab0c73c2f9cdb40b5298ddb57d9943f30ab137c56d04b8e7d3d368e9c. 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/QZFZ62442126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd95430f3467393ce25ff36e559e26825f1ffede5b67e1fc0b35d35c6b51839. 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/QZHN42495848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a3f328aaa8ef79098f91f1f80a9c3a10863a1b22ae5ee2d58c21417af25546. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZHNA2485260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f32b352e910a20b4513b14d77dc33f6a36e236cd010f3f264d4a403c038873. 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/QZK6M2499460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010dcdf5ce80aae7f0932dbd087595ed33f76fec98564c249cc2ee56a470e108. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZTAT2494354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ca4af2dbeea70ba0f17bb0caf004d5b0f9e48280202d9c92a2f5162846810b. 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/QZZ7M2424741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace00bccd003632a1a7aa9c3ee401ba239d9d67a1367fd11e18a20029cf4a475. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:10:43Z), 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/QZZ7V2411752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3618f039c8da60671c765e31cde7c51ed6ed0cd25954ddf5936239f9161d63. 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/FR10S2563834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743ecfab46fc2bcb2224bed23f5daf1fd264c9ed1212bf18b23dc849aab046a1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAJN2562219.