1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1988f7a3d34698c205567b110fb0c9699adc906f0144aa7093485d607af0292d. 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/85c70c32-25d8-4c83-bfb4-caaf98a50004.json and https://artists.proofprofile.net/proofs/artist/85c70c32-25d8-4c83-bfb4-caaf98a50004.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 → block OTSBitcoinBlock must exist at that height 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 0x94ce4b17ed8f9b37b62cf2cefaed14babebeac9b42df37cd3a516a0cb31f46f0. 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/CZUM70600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc31b6da10760d35282015fcac1e5c01789fe47994e057801e3b916e388bbc96. 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/CZUM70600200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fcdda6b9edec0dddab471e788ce8f7cf6ab2066984517e79460ef4520c9ba9. 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/CZUM70600206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c70fb2348e00514bcb61bd3a1b57786645c8fd8b5bac2b5f471fc598a055c17. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CZUM70700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91972fad56663935c4a8a645b59f4a4986128d119cd09ef57cd2f13ea6cd1aea. 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/CZUM70700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79d2c5654a32d0625ad70582388306f4740820c39a4e444d2abebf72d0702ea. 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/CZUM70700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047e178406a0061d5b2a4b873bd2cf40b0d2fd7e877d8bbda0493db9d473154f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR6V82358681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9ab2f8308db04c4c98d214f399f75ee2924f92dc6499044e836363fc38d1ed. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:50:12Z), 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/CZH681500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff466356bdea4fab50feeb162ec4e25f685430638d4c852ed60ca2305ee5aa7. 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/CZH681400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fd5be79b391900a5df6e05e74c1f5e95f66237e77b34fb91ed7edfaa084589. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CZH681500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c4be23c9ae01045aec7e31a40d1ea8aff51c95afaa8980de9f074cf4bc1fa9. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/CZH681500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9ab2f8308db04c4c98d214f399f75ee2924f92dc6499044e836363fc38d1ed. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CZH681500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff466356bdea4fab50feeb162ec4e25f685430638d4c852ed60ca2305ee5aa7. 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/CZH681400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fd5be79b391900a5df6e05e74c1f5e95f66237e77b34fb91ed7edfaa084589. 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/CZH681500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70fcc23180727a5bfc8fbc765d88cddd3fd496ce3efc47410fe91f346d38ffc. 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/CZF012000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c0bc9e6d5adb3f955f7284fce3846fc93a41c07cfc7b2e3c9a2a9b56e58eda. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CZF012200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca3bb947fa70fd5685b301c56a1a8a38c360a9a62860353552a7338cb748263. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CZF012300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db1326b4044ca23237ea9c23839eeaabccd8488296307162671ad6cbcd33252. 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/CZF012300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a93de4a8598cbb3dc7e54d7d1598536f4fed413f4aa1bc6ac6007648b6721f4. 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/CZF012300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bca77ad31dbad470c0286763d43228c590102330d5699cb4b8dd032b62751b6. 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/CZF012000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb85d8f1a458787fef79188585e9f0f41cbf2d035e908440950b8836d90d18a. 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/CZF012100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917fa43e061ff23438fb6ea907320563eed2fceb23bcb1fde1671ca7ee9c0290. 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/CZF012400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31564e0d959ee9b1c34a9a473f6cd6b55138ae512fd8f9da2ebc7defc12cb95. 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/CZF012400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7e0083f6ebd013f90ba4cdbb57c998fa246ce6e2a673912fdabe0fafebdb63. 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/CZF012400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9abf25865f6b0b1e68a24a61824cd8ebaaac816ffab1687b931daf5a17c233. 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/CZF012400081.
Vězenkyně - Live s janáčkovou filharmonií ostrava
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fd654b11bf9ae0d81d9612e6da98ea4bff6b3c7919e58a6afaf6f4c7571c9f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CZF012400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ce421545855c24a41cb2a7d5d190986a7562bbbafa8df3139b402e128a8a14. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CZF012400084.
Šrouby do hlavy - Koller's Version - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1450ff984dd34f8d5ff5ca27f2e31e5449bbc5df08f471966acaab94e604f7d. 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/CZF012400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1b39bc8d8027c252d6f9872d72cd198a38d0fe33521e358b36e8e10026c29e. 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/CZF012400087.
Ahoj, Tvůj Petr Vzpomínka Na Petra Nováka (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb756c56529cb96da7e4f8814c180d2f0da5d4803ba7586c0594040530bcc0270. 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/CZA160600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9746026d0ab14512a68df9ea65cae128e48868fe32248dc0b4bf81592b0d4a29. 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/CZA110003024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4bce6678997f1c2a618714ea49ccc7e0d57b72e2699c28911cb42002f97335. 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/CZUM71800191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44565f12e29dce43ab9fbe38f3cf8964b72dd9b3112280957559f790fa149c74. 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/CZUM71800192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b067006b0e181329575218a147b241610a48bd192a9a043a1408c792c3f19e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CZUM71800194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eab653cd5ed77974168af497d8a2838ffa524f34ab037a99c0ffb29e3aa0ab1. 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/CZUM71800195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4fc2b4be0225dd6932776aa44f82021684f1a0122b667bef7585e9bacc9202. 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/CZUM71800198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7f466cfe5d45a6f740847948fcc293f10daf94d216aeff1f0f79242c7d2fb8. 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/CZUM72100669.