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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47f4f1cbaf2253f0d37ce168a45517133b790a3e0dd425d5a61a3d8125b5c8b. 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/c1043772-6b49-418c-b9cd-36e31ffb473e.json and https://artists.proofprofile.net/proofs/artist/c1043772-6b49-418c-b9cd-36e31ffb473e.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb0deb14c807b2321d9bd11bc71e0910d4bac5a52d149fb8a903e87aa5dfa12. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR0391700169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06ff2f421be25a04a1fdc7e076836748f8769646c848d038daf86b56ffdd72b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR0391700170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7269a50be89c32a6ce6180e0adb3b906619a4d773a9355e066074482a1dd6473. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR0391700171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8292aed190d86497e62df3ce4611d07bc0a813643ccc9c92101c2973f26122. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TR0391700172.
Terlik Geliyor - Nurettin Çolak Versiyon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94f1d8fd81450f142fb8db1bbf2313ebd0e83cdad8aa33bdc8fbd0294b4dd9f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR0391700173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6f51985f56d91750e48b13fb8970b0aa95c5d045d834c61d67346b8a2397bf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TR0391700174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f38cb8183ed77173d0d20368640f196aecddb0d139ce7fb1533c460a10b30de. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TR0391700175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af20dc2a25fbe86a4fca5c46b876351cfd4645a60ca9a17a98127159eb050c3. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/TR0391700176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df923fb66db64d92c7e469c26f15e3f79f361c8cd4edbae0180a580bda7dc63. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TR0391700177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314da00e4eb6aa7757aa255cf8513e316d56ff91b843d176fbe3b2d181004d59. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TR0391700178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9c2c26b4b7c1b99c72846a6c1abf31747e301ca6ec6afcdc36bdbc4e6830d8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TR0391700179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d48c5c23cabdc2766417d4e415f2ad1c06d0fc0ba7d88456f71cb499421646. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR0391700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe7cdae252467ec4d545eba7d2a33935be5f33b99c367f33dc61e5e877a3fe0. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/TR0391700181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd3349f99095336f41564d04cc52e7a4db12647dd4179a2eebb85b6a8748213. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/TR0391700182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa862814cd9dff431105ac1436736fa02862209b7882672db24fe4b449c74fbf3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TR0391700189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e43c6ce2cb9a7c0bb0543a3e0396e6bfd94cc3db0ac486ee481cb73a933bb6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TR0391700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ba52e09039fcdc1007ee7b39dfd0791ed9ac841dc56eddb1119100a8ddd68c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TR0391700184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81796f1f8cf0117145311247844c60b9bb9d349c46c60c34751279d7ec97beb3. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/TR0391700188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bade728ef4e8c45ba3629536bb7bb8f803a4f1545af9d1597e6825b9f3228f9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TR0391700193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac76cf4d2363094e01752b08c379029d2fc1e92d9cd1519047e11059056eeb87. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TR0391700190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfd910b76cf6571d992f38c145147cc6fc433ecec8633f5ac71c6e9ccb05c98. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR0391700186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96190f0720e21b7f2fb88a4ecfe2bc33c99404e79b1c896654c62819ea779d03. 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/TR0391700187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7262c93366e652318716290a6d4491d93ea796a49980dc94ac9204c07207f4e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TR0391700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f17a5b86de806d4301548dee07ad1ce766539518db16b25c03397e8d78b168f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TR0391700192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8292aed190d86497e62df3ce4611d07bc0a813643ccc9c92101c2973f26122. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/TR0391700172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94f1d8fd81450f142fb8db1bbf2313ebd0e83cdad8aa33bdc8fbd0294b4dd9f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TR0391700173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6f51985f56d91750e48b13fb8970b0aa95c5d045d834c61d67346b8a2397bf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TR0391700174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af20dc2a25fbe86a4fca5c46b876351cfd4645a60ca9a17a98127159eb050c3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TR0391700176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9c2c26b4b7c1b99c72846a6c1abf31747e301ca6ec6afcdc36bdbc4e6830d8. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TR0391700179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d48c5c23cabdc2766417d4e415f2ad1c06d0fc0ba7d88456f71cb499421646. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TR0391700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe7cdae252467ec4d545eba7d2a33935be5f33b99c367f33dc61e5e877a3fe0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TR0391700181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd3349f99095336f41564d04cc52e7a4db12647dd4179a2eebb85b6a8748213. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/TR0391700182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45edafb5f3f7518ca2b25e3a99d27d977c3dc51c5016004ebe4daaec4674627. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TR0531303622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa256ba7e19b2d6f9adcf86fe513ad48494c8f21feeb7cb055b63da38c5beb439. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TR0531303623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5808f1230ab552e444e702085d30ba55b0b54eaaf32d678c1702ba355d06a268. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TR0531303626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1887286caba213ecc907a18854f82274c989c36c7182e9fbf39c1b61fa2a2d51. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TR0531303630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f22ab68fe89ebc9512a03821c790caa4a63be376919759637a4b154532a1a0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR0391500212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f5c88d4646eeda14136602f1ce62234eb2747a628dd4a86893667ab6e997bb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TR0391600246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b67743fe233f7cdde9ae1516579bd48d2bbe692239cfdb75f20daa118ddc547. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TR8701100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06ff2f421be25a04a1fdc7e076836748f8769646c848d038daf86b56ffdd72b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TR0391700170.