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 0x1ac333b8e2a6e63bcbec6ba20d3f63e6b9015c1f948e114b3c25399acb1c4e85. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/793cb484-3eaf-4fac-889d-e4b09c964b60.json and https://artists.proofprofile.net/proofs/artist/793cb484-3eaf-4fac-889d-e4b09c964b60.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 0x8b61753c6f0087bf7b461cf62077e62b96c2dc6af923ebfacec435104ecbb258. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/CZA167400112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c687b99da944873ed12c24995bcabb83f6b939da1abcb7ef9ce3c06258a2c35. 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/CZA168400127.
Check The Czechs! 80. Léta (Zahraniční Songy V Domácích Verzích)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168f139b66d7bcc8e9e6ee25eb6682ea8bcd75216151c704efc913988e0f0ef9. 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/CZA168000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b8e9171f7f32a23d1788f48d1e235f86b521611052fd3add1439d90e5e28e2. 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/CZA161100916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94424137823d3c9d4af4c8eeff21b56b53f05a9eb156b1f18c2b8472d575d96. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/CZA168000192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acac29414219cfd850f352c570e96ef83790f9ae7931b3ff55aeb3f02eab64d. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/CZA168000242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5bf40344103275a5dc245fed064475d2dfe115709dbfd18f8142fb21d956c6. 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/CZA168000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a24db94ae1e654d00262a23b95fe111434e495cb2d377f804afabb15f4fed8. 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/CZA161100534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9d829100fa91ff1b22e63d04228be01903c6f7c399de239280047d9ff6a38c. 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/CZA168100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3587f03f4c3dc747f21f811debe5de075874336984500a826188317ccf2e5a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CZA160608970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964e05ca8241766cfe5916e409e1251c64fd3830b750d975c24c5d9af85c035c. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/CZA168200330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc381e34f9482bf5b7ed6a6f65b7914b6ab145dbe6b2a87681134cec8eb6c238. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CZA160301578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c1c97a3a8c5083eebd88ca49e2b8d5621f2643aea9b85259fa2a8487ee83af. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CZA168200344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6929a6348f257dfda0d27f373405ba97645aca53908a87eb8d2da4141e8e1301. 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/CZA168300244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afb1ddf73128e216a0ceac479bcc78213982f5d1147817580daa0c47074b9b7. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/CZA160900921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b38a72e78fc0e6f76c7ce7ba218935d2cd8125d7fcf9698baa515d5cee4069. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/CZA160500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768bd438d2cff4f38be282f3d6cfc3f99f6a94e01737746468fd56d5153334ca. 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/CZA168400988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe432ccff5eece18147c02f8abf54d4d93f500ef9176693bb9f068a544f41ff86. 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/CZA161301734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2e7675d24385dba9a61f7c8b075d90f8207ed094468ab614253b9ffd2ec142. 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/CZA168406999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3757c3531c32bb06e277b53056b282a4278ca163e6625136d950770a5856e04. 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/CZA161100949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677879615a75402b29023062f728416e0712b7e4942bf7100453db2969459f77. 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/CZA160404396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268351728cb9bec87336f2694768036f4d66445aaead56b127fc2e9e9f80b473. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CZA168500197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae703b5d732fecb3f648163bbd2daa327634caaa72d8540bc10a2d5f3968ba0. 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/CZA168500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dde69611714295e057d59b85e5fca2f3f8ce2188a133e599f7b9e0e37501982. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CZA168500279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4dcf4c957f2c702b84bbc7ed6e8be7f1c206723e952900a75ee409ca3733e3. 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/CZA168500370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6776202b54cd9b2d3d340c3240078964def67ddcb1cc8a82688f780e1d81bc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CZA168600328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06326d325a8d96b183e88521a2699109619c54c1da83baa15b54e9d52826f37. 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/CZA161301846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13c061ed2cb8d874666f60b310b53bd96f4b8844d8f63d1d918891f1d3345bc. 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/CZA161101104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389ad05acb59646b051025db28a8a05c6b169d1b8f44f8da28e81e3e8139dde7. 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/CZA168800305.
Check The Czechs! 70. Léta (Zahraniční Songy V Domácích Verzích, Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27348c90e60c7855a5699caffe5db1a37339b0613d8f2f7849a8bd955c42218. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/CZA167000119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388bedf21c02726a18a584fd27e055f8a3304dd2adf9ad88da3ad04d814af545. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CZA160408567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a97a693b68065aeaac35e97681162555b22ae055a10cc975ab4fe9be29674b1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CZA167300543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd5200e5623e4e2ff63a7d8e7b4a4a3000be4cdd10b7a2211db70697fde5c51. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/CZA160404172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedef676fa6ef66105076d84e9881b43ce002214836e46700df97be65ee66fae3. 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/CZA166900870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594753a9e589686a36cabde50a1ffeee38dc9911fbbcf87431b3e3b71d968c3e. 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/CZA168800482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2561e3f16893f5d321d7919288bb3d0d41bd2aaa1096dd0ea7d3173550e8de1c. 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/CZA161202169.
100 Let S Českou Písničkou Aneb Populární Interpreti Zpívají Dobové Šlágry
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bedc09972ab6b5730569f2c72df1ade31f76346bb852fe27fe5910423a34394. 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/CZA168200266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d865de2a4e9607f14f21000f5df828e05f9d7b5c1d0cce748c81d40fafd16ca. 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/CZA168100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5aca65b14cc486904c9f92b8dea2174681b6b463c123d41a15d94d27759309. 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/CZA167500565.
Hybš Hraje Polku - Šumařinka, Hů A Hů, Škoda Lásky, U Našich Kasáren, Zelené Háje, Kalná Voda....
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30883a16e2f31e6df208791ca088e6f72a7c208841a3c2454e3b6d3c12c35639. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CZA161205539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8defcd44d167f8be8b8094737251c7ca67f943d1c616c3f3a7637a36ed61dae9. 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/CZA167500114.
Bratislavská Lyra Supraphon 3 (1973-1976)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6cea386bed07a8de63299bc1abf618aec96bb9bc6d30e8e34d244f9ac6dfb3. 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/CZA167300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a0dd8f4f6bc6f22ad266c182f004309cbdb2cbecbdb63c0de5b52ebcf0beac. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CZA167300541.
Bratislavská Lyra Supraphon 2 (1969-1972)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b525d72568e8af4b08fc4b0077c3e32cd8c2eca17673c82838cb3699b07242a. 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/CZA166900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04d3e7bb08d6954e944c8feb88ba78005e31c2a577cad43de6dab3199b59e9b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CZA161340009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a177ee01483777e486e750c4b11d087769d0947b9891d4c7f0b8a00cde55040. 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/CZA168500492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df9e042ffc361583ae029db9369f5ee57de63fa8e03c7011be1205a8ea0cf64. 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/CZA168600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb9258ee06638e23aa49430bf1d38a1cc8c60d02de6817b2d82c53886220c18. 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/CZA169100617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb452a41d4e8f2be488199954c34bbeb713acdab74cef460da22a5dcb02824f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/CZA161205396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775d17f61706dbbeb08fb864d43161ac33adc7605cf12a1def4d3d22a6d18f2d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CZA161205501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b946ff8817a78907a1a1e357fdf8cb97ae1eac1543e4600fba0beca3bdda9f1. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/CZA160901751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc230fcfd4ed475ebf5e959e7b4e5703b306ddfc4e2502742cb4fbe7cbfb5a4f. 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/CZA167000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1dc43115fb619a46c93a92e91cfcf3791b8aa02d5549ff903493cad42e8a92. 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/CZA167300216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c1c97a3a8c5083eebd88ca49e2b8d5621f2643aea9b85259fa2a8487ee83af. 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/CZA168200344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ffea4a6f871e43bd665cf3d9049337bd0a5824449cb0773d81cb5d85c939db. 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/CZA167600251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4071d2dcb85ea58dc0a269134477dfd25604a333485d08d7c0657781576d588. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CZA167600252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515cabd872d447c391f13a905b2372b0a5acfad9e7babd7bb6b3d948acb48d38. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CZA160407219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99322d619d285dd910f920de0fbaa24cf4ab729b16b953532a6ac2b3c913c4f. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/CZA160407223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d7d2be5e8e1b37380a3956a3afbf9cd8693054c43898f657e7ba43f9f8de9c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CZA167800740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a77339e1f4b8b56e773c41d7791509a935fda987c3a0b2f7dd822c01a317ba. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CZA167800741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85057cd21c7b0b6995700ab085acbbe6b5424c2e327e3ae07918954d10612031. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/CZA167800742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85aaca9d1becf0aa21bc14786b03f5f4d695f3cf1537d74c5d7a87f537c14ac. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CZA167800744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b4d0d37da2db6bbae28bfde98f7d3e98434a402cf18a7cf35097a86401edf7. 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/CZA167900803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf8e72b635ffeb586da70ec0b040aa39d8a6f4b9c2d66f5d46eeb1de18004eb. 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/CZA168000939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b2e2e23d663c47ae6cfbfb7654cd9a284b6941c5393febbb850254adf72d26. 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/CZA160301291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc406cf8487ba7262046a780fe7b313760272411dd65c925c2e88c46e7ec17ebe. 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/CZA168361997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bfe00549ea03becce9b9349c108fcba69bfa5222ab750c8d42fd9b3412c553. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/CZA168356998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c0d49a8a052b62b9e2be8c702b942ce681201d7325c40e1aaadcffe5545ed1. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/CZA168470996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e12a719593eacf711f115d33ff6a4baa85ea0ba5ab8336fc4bed1bb2088bf51. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/CZA168471996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc75745fcd380233a2879a5d5bfb15c0b41d09983c57389259c68d3c53b9f623. 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/CZA168420996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bd06ba9820a5c6f77771062f07a247fd1f3dca0fd3870c6e1e7503b51429b4. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/CZA168441996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4c9be6841495712b9e883f930eb97cdce419efad72f687c84c2446750149d9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CZA168557994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2600178a4ebd5aacbe15a761ae034090694dfe2a284a50f4a2418b2c10e5fdb. 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/CZA168535996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb13edb86254b40d31d5548a0f5b823982bbdd45c485644ddb8cc91ed1d443f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/CZA168600243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee16d2f6b9656f82af815bfbe0643c3d23148424570ff6b2f2eb787537bd961. 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/CZA160405703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ffabc392b1f70b2e5120377e8ee1742b79e4bf344aeb9c635afc7aad4c7e7b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CZA168788998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f42aa43c98c221451fde2ec49a2d09d10c367bb3d3eb6d0debf3453d700eac. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/CZA168746998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9d4de77f2a3729107837fe0e38fa72462dc377ed39a914557c82f6425a7d61. 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/CZA168700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849eab862e4b6e12cdc454145a91467b376c3d0808f87cb9b6e5b9d204da6ef4. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/CZA168718994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4186a926c990a16174183ffbe4a4e8e8892d9c9562330599d3117852a703d7. 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/CZA161502111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3195b930ef099cbb10d9ec177de313a7a2ca6350026280d873922977d86b59df. 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/CZA161502112.
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