Kumbia Queers is an Argentine tropical-punk band, originally formed in Buenos Aires, Argentina in 2007. History The project was born in Buenos Aires in 2007, the union of She Devils, Juana Chang and
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 0x013d2ee3eab496a747c6577498b14f5078bf136e2bf0c0f08b9a3f8271f6d221. 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/e6a7a45d-d989-4953-9af2-452bf12c11f5.json and https://artists.proofprofile.net/proofs/artist/e6a7a45d-d989-4953-9af2-452bf12c11f5.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 0xdf58637b05756c43511bca5c376fb3cc2eaad7abfc8f9ad2bb08e79b0cedc336. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:24:12Z), 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/QM6P41550403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25afdcd5947975a8a2cc551e9e62cc4a55d2a3f3122b18404cecf6e05ead2c3c. 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/QM6P41550404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645a1587017ac8ddef1cd536a607da692199b8497632ad307aa6af9f5b8ab6c8. 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/ATD411006004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01156aa6855c0781cb072e0ef92ca6430c14b38d1aa03e68d6d8b69b581326c. 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/QM6P41550375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0c9476ce21858aa2bb6b247618c77629223abaae18d7eb347f7036b5dadbf7. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:39:49Z), 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/QM6P41550377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01156aa6855c0781cb072e0ef92ca6430c14b38d1aa03e68d6d8b69b581326c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM6P41550375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6b977a30ec0f705fa3bc56bce2bb07e43078345ad8d680806ae3c03daf5e4a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM6P41550271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd3f433da6197b29bc44774a67ce4371099263096ed3bac084e6c240ca52509. 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/QM6P41550273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2dcc4c4fe22ec07f6909400eb08ba07a1e8151e66586b8957a11b5ffea54a9. 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/QM6P41550274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c2a494c68a312fd35c08512974c8500d6d89388f8c9f1c04318c3e32a3136c. 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/QM6P41550272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd3f433da6197b29bc44774a67ce4371099263096ed3bac084e6c240ca52509. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:55:22Z), 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/QM6P41550273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2dcc4c4fe22ec07f6909400eb08ba07a1e8151e66586b8957a11b5ffea54a9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM6P41550274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8128e33e1a66ca72b619db2ee8735db77f8479e1de6f94ac796a9f619cee137. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QM6MZ1538210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f53927bfaebe9dcbf5c517e1bd0531c7d3f4af2e17fbf73a64db3bc55d06064. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:31:22Z), 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/QM6MZ1538214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91529471af4d8b39fe551fc014ae65c0c8405112c99d1ad05b950524501b612. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QM6MZ1538215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322efb52dfcfa0dd7eb4193dd652d2f0ce38ab5013ce8b778ba7e5e1774c3e35. 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/QM6MZ1538218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8128e33e1a66ca72b619db2ee8735db77f8479e1de6f94ac796a9f619cee137. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QM6MZ1538210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f53927bfaebe9dcbf5c517e1bd0531c7d3f4af2e17fbf73a64db3bc55d06064. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:07:15Z), 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/QM6MZ1538214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91529471af4d8b39fe551fc014ae65c0c8405112c99d1ad05b950524501b612. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QM6MZ1538215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0f9c9db49fbe672c601cc4ebdedf3aa370c1cb00dfe1c2a66513a293a00652. 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/QM6MZ1954564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8952519b18498bf4526790770773a631cef14a19a7898cb41acf6cb9bc8ba883. 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/QM4TX1982777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc177fc98a6b8beb28052df2c558956e7370435400e8b55a9811b081098ee44ca. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:39:37Z), 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/QM6MZ1956048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ded111843cdf1e7a232717c6a447fef0d03658e00831c4e90b39c95dc82f280. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1954665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb927c9ce7b1e3342820a8e035d2fc69f434624af46be90c926a32351925e615e. 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/QM6MZ1955885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b96da8839b5e919ecdcbe6e1de253a55ad53ab0aa099071c2100d53e9d3de5. 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/QM6MZ1954567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2ad0d885ae60664dcf6c2001fbf236d01e0a77aade4f41fee8547715428b91. 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/QM6MZ1954616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0f9c9db49fbe672c601cc4ebdedf3aa370c1cb00dfe1c2a66513a293a00652. 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/QM6MZ1954564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8952519b18498bf4526790770773a631cef14a19a7898cb41acf6cb9bc8ba883. 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/QM4TX1982777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2061b3b7bd1f83648e2a8525ebf87521fd3ce3a91066214fe4af7a3a7a4c1e92. 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/QM6MZ1954617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62b373c8995fc2cc3dc054170e24ba67e4a67a62abad4794e14fd55d28b88aa. 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/QM6MZ1954619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ded111843cdf1e7a232717c6a447fef0d03658e00831c4e90b39c95dc82f280. 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/QM6MZ1954665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef72967770dffb7db1bda033e3730cbf8528d991b88f8efd3eb26c29d920f5f9. 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/QMBZ92195336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef72967770dffb7db1bda033e3730cbf8528d991b88f8efd3eb26c29d920f5f9. 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/QMBZ92195336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84296f36bb90ff45a36fae11171b3b512e6af969a57d0c5ac27c384af8aa5fc9. 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/ARIXB2306842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972ed0ebd55c79b9875c0cda9b18f187baf2144ade86fc027f89d4a5d27759b7. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:59:38Z), 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/ARH8E2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dc86ed481317845e2876f465d75533893ebb56bc41a734ddf07c64ec5e72d1. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ARIXB2501682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ca96487e556d5e2ea6262cd7c1f00e495693bf6c53e55fbe76a62417cb702e. 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/MXF060800268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2655f70dd1c688d0f99d534cb3b8a7dcb1772ed7c3599c94691104b0162c96d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ARY4P1800151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe611334e50410ea774072e08e7a9fcebe032d41d5eabb9250d66530baaa8d3f2. 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/AEA0Q1714545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7217216d18aab893d85385b38cae57a9117d4b47aecb2bac9d03c195481d06. 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/QM4TX2329836.