David Koller (born 27 September 1960) is a Czech musician and record producer. Career Music Koller started his career in the early 1980s as the drummer of Jasná Páka and has also played in various ot
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 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 → 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 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 0x93a10812c69b5959b9bb1fb7fdf9fad4afb87ad0d13f11edcfb47e9b7a1929de. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:48:31Z), 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/CZH681500017.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1328310959e8740e34a7c2b75ee01f71c0a02bb13ae0d9a476624c61d948374. 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/CZUM71800189.
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 0xcc402cf32ef89342ba838e0abcf970bb56ab0f9d04274df936de3082bdea9997. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CZUM71800190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d2869ad42edf6dd82fa5f7efea09e75141f8eb924bd08b34dbf6cbc049ea39. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/CZUM71800193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6db70ff3d309bcd07ed34f75c7a22b82367e6b38eb4b8bdad8a07516d191692. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/CZUM72100668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a27c11c36d3ab382f11cdcd7acde6c5ac165702c5b137db4b7ed98b9ecf22dc. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/CZUM71800197.