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 0x57c128d1834a356f387ad3ea5fd9e7ac6827cf4d2c8e8496102f4a43e038692e. 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/b006bb91-ca8a-430e-b3c9-a3dd545698c8.json and https://artists.proofprofile.net/proofs/artist/b006bb91-ca8a-430e-b3c9-a3dd545698c8.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 0xaa4c22da2431f8525da1ae3f569e4b9c0045ecc595cb27607edaf53ff5518f63. 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/RUAGV1400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6e1ef3c5d4490a8703bf3f9bc517cd9e0705ac1d440afde0798fdf0a107bae. 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/RUA591801874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5197d100e9c42fbefa1e474a89bd46472e98c34fe17d8fc62fcd3a9a78ca2d1a. 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/RUA591801880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133553e5f729ab9e96e5b3a529eac60b355b150115f6588fbdc6b5568fc5a6df. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:29:10Z), 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/RUA591801883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76203a9785447ca67dc4bfef15e7b2eeb736fe64db470352e47a1df58619c074. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/RUA591801886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d7fc40036dd0309cd63d4308dfcdbf01af1948bb6f1ee52fde92914dbb0d06. 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/RUA591801889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa091d12c72c15e1e022746c4ee79e8cc1ec6553a28f613c2d769561583bd37be. 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/RUA591801384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadeb217c4be1fbaa007c2847498cecf76443b03684007cc1aab316251116a65a. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/RUA591801892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9712182a728db19c0f9f081ed1ecc90a79a6a1378d26616aafcdb8742f6dda08. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:53:33Z), 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/RUA591801895.
До встречи на танцполе - Kolya Funk & Shnaps Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d970016eca331bd30cc407411e39128ef1caefca3b9f2625eec2363bcf8407b. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/RUA591900712.
До встречи на танцполе - DJ Prezzplay & Kolya Dark Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae63aa0f22894e1402a5d8936ca023b9f4811c4b607d58a89a278b623eb9f2d. 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/RUA591900718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dea5b9bb9113a65d91342adefb03bd314d1f5f546aa09b7e01cc66abc177f9. 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/RUA582101341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb68ef72edf9b31faeca5e8c31920f714ac79206c6501c067ef00689e3f1916a. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/RUA582101343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b8f5e3d703e64127edd431e74d469de08d8d67cc41028142ee03b921c005d4. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/RUA582101344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d9bde2d7adf6522eab77585df5a111c82b31cb78a41f45e353c51901d56df4. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/RUA582101345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884c3875501f65ef82508731bcd4cbcceb468b6bfa6f7bce72ac955454b7c24b. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/RUA582101346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b9a2ee337ebd1ae8c2337d34fb1a7fe7c18e66a9e8c45ac95a3ca48e43d28c. 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/RUA582101347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409c2510bd25811d5642ae4cfa51f668ce0d8e2a2faa8a93322b35b90280351d. 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/RUZ232100369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31fc081be8cf22c0e6c0f1a1dfb45f11501b39e661e6d7de7997f2cc09e406b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:49:04Z), 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/RUA582107139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d89f83358e2e6dbe6d6e47a21f967b4ff3d98967b8e9447d80e01a99e3d00e. 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/RUAGV2402994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c63d59ad67b786938a9933b6f9204b74f1fceb617c07dce3caf1690bd3bb2d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/RUAGV2403323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1203b60bfd6b1dab6824fe3b6eb233807516ce4c0cf5e19057b21e413bea5009. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUAGV2409141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cfb9dc7b9f74b8392107cd3881c385f7780295109c61b629ec05a895b8e89b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUAGV2410255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba4599ef4809c4749f304c995451683f1a879cb497fe9c472817136eceecbea. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/RUAGV2410256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681144d44719a2d804de94b08aea9b9b635c91a42eaf2e4073d07669ffc2086b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/RUAGV2409145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2be928e704c49139571e89ab762e094acfed0126c1fee420f19933879a1b77a. 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/RUAGV2410257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adcb26c3b091f68e5260b482faab5e6abc5155f3eb175471553b68252b99320. 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/RUAGV2409154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f7824647a3c7873ec4d415f4d8fb03d7b586d52b40eca20ace2e43a9787b3b. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:51:28Z), 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/RUAGV2410258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9384624d7ca78656d29082ae489766623d5a5cef25548817535cfe256ee4af94. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUAGV2410259.