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 0x537f2a253ff8b522629f1bb4a3c1a718586f0340cbde5144aacaef74ff694218. 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/8374ae06-b09b-4181-b8cb-4be6fc3d3812.json and https://artists.proofprofile.net/proofs/artist/8374ae06-b09b-4181-b8cb-4be6fc3d3812.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 0xfc332698fc9549847ba363a9a6b014154f808776a4556d12bc4e7b70dcb8c95d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:57:54Z), 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/TR0220601816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d443c2d0d52ad762fdc6652c9a0c8df3f222f34cd14b77fef0022e87e7fb32a. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/TR0220601820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151f49e4f4c0be8fcb271ac0846ac42e3dbc500f4d15c08adbd875cbfedd236b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TR0220601819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8f13fcf57698bed5cb2bdc887cd83204ad14acabc16fa19cfadb15fb828ec7. 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/TR0220601829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315dc2dc26265dcb184990f1c02a9cd3877115924e75a018f5b821bbe56ca9dc. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/FR6V81587841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed8e10e414c6b32cc01a29f52a10cff92957e5e7c747cd2f2976e356257321b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TR0220702431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087671d92cca9080ca7bf5ac33d276de17e54b8f6e433663dfa4c6bd169a5459. 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/TRABU1300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a7e3c14d428c0397abe713d84477ae7314aa941e7eae05de90dbb54bcf695d. 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/TR0441617603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde3a58039a7bd1fbc5d06258efe7f9ea092dd8faabf111eaeb60c5baa20a1bd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TR0441617605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7439e888254dc6f749ca1980b285718a1a7c0d89aac248f0bf8bd88cdf75e61. 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/TR0441617606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d1a13fd474da928055efefc34471441e6465e8ba9ed2982c3f47e6e882ea70. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/TR0441617607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ef173c1d3f7ded1589a4a92f5195f939591e843c20be6ce6c47929a97a4e14. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TR0441617608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd84586112a9b0436c2ffee25608ae4213b2d683f7fd02e6de2f9500dc0923e5. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/TR0441617609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb228c091d90fac3e494a720d13085b903933d9f2250cf4a86289fa653e680e5. 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/TR3431901496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346e5ec223bccc5d9aa42bd7e67605e9a76340ee5a45d14cb7e1b7a324948cc9. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:52:26Z), 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/TR3431901483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fde9ef93f03a5aab25dbe3a1ac3d688b82ed3837bab890b715390f3ac5deb66. 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/TR3431901498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6da95c8b8a525ec9623a46c00c428e7d5eb0b351533a3d3d81f5763ff5444d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:54:59Z), 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/TR3431901507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b6766ae32287d61c792bc21c96e7a1697663b9753fdeb938c50163899a9b7c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TR3431901494.
Saçının Teli (Söz Vermiştin Orjinal Film Müziği)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d20e17f60c8142e2271a0e81a2b06f4aae8e92de8c5fe1c6cd535a1acd8c150. 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/TRBDY2130801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cb7220c134c4711c612a755c648555656e771d1eb49a1755c6a90bf57b60eb. 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/TRBDY2130802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7529b01c001a9ccbd84db682d49fb6b93319a8cca4ef890208da609c0b3986b4. 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/TRBDY2465910.
Yüreğimden Yüreğinize Sesime Ses Katanlara Selam Olsun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373a81aad5b6e1477166ff6e1c03fc6bac0a1c2fadb172e768236fd971ba0d7d. 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/TR0431202190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3450be0b31fd43379a563aeae7da3e9f13598be4c53075840df9dbf8490a42d. 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/TR0220903052.
Beste Beste Türkü Türkü Abdurrahim Karakoç
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268bbdcaf65387b2e9a2d394b411038996f9b2f4280120ae51cda57f6d675e9e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TR4041300428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c66d9d1096cecdabfcde8a829eb28d5744f78b3403b896cf210a1730648b22. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/TR0241203747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67572a61ce89c8a93e5438c10b5c0afad0229afdfd3a925105a013fc49aa2717. 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/TR0430801756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3450be0b31fd43379a563aeae7da3e9f13598be4c53075840df9dbf8490a42d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TR0220903052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675bb37ae3c91e2ce5ab71058c9394837c7c34eaa46f636f92a650de29c6db84. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/TR0432104322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bfe02392195e35b90691ef00ee5f7e9f68f7a4c5a2ee30a94bfa277047786d. 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/TR0221103289.
Türkülerimiz Var Bizim, Vol. 2 (Yusuf Gül ile Düet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc551f071af52c3f150c57ba941443f8301bf38f2276bb08d3c03982f6b5821b8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TR0431302416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f783c86ef124294f497af6afacc157c96f3e4601983240cbcfeeec6c09109f. 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/TR3141500062.
Aydın Öztürk Bestelerini Söylediler, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55526e0c922f40f7e7457dad1aa51fee7e4603515fd325848ab09c4396862b1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TR0150900166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1e201c484defeedb2a84acaa469b637bdace3502950d50767be171163acd51. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/TR1590600168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9050cd8b52d9d491f7a9c79ff96c21414b3964c49a819e987046c3c60ef7e187. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TR0441618910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc19f095d8ffd9520665f7bea284701a2932c9905061550d64362090f49ab367. 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/TR1590600174.
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 0x00890bce27a0794727579ed5906f6a6b729b620bcf7ccfa4a2dfaf00724cd861. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/TR0431603011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff91b421cc42d219065f7150a953aeb6f268a74f280d86fd0d59572dbec14e6f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TR0361900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea16b59d3f8ae8d67d3988b07553d0c58dd1d7df56a4709911deff4979848614. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/TRASY1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f15e6761d57885d538246beb034fe1ec24a15bd9e2b5efb1414185f18841490. 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/TRASY1500010.