Warsaw Village Band () is a band from Warsaw, Poland, that plays traditional Polish folk music tunes combined with modern elements. thumb|right|The band in 2010 About the band According to the band
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 0xd570bf17c8be6135bdc04156b228c92529c49fe468aaee6787f2a6ba72187755. 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/5791da06-90d1-465f-9ecc-5479e1f29814.json and https://artists.proofprofile.net/proofs/artist/5791da06-90d1-465f-9ecc-5479e1f29814.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 0x2b3154d89895c0962432e44b5ec3467e0d4add51efdcea484ba84f4bfcdcc723. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USWR40202801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5e0cca46acd03bb62ea3398281f07933591965db51f83401cade5b3aa9b410. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USWR40202802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde65d4d5892b79adbc66f3ddd4de1bddf84d304c48dedc839af53e8697b958c. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USWR40202803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af5b0d53738783ef7d5957e164e00aa0ef19f7dbb5274da190e802527db26a2. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USWR40202806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb08c72e4fb0481955ae8a870c9740b3f701ddd1d2b84b14347fcf15a0256692. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/PLB841800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd53daa09342c43638e76cfcf509f86399db4c90d73a77d25c222e32ce1db420. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB841800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3530cad70e1f7c912fc58b61e60f7a4b8eeaa42da3d5d683bea4565cee28c8f. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/PLB841800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6ad58fae2998e403c68f5b61225d224c030744104eab562b1c2acb2eef9039. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB841800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0729e4239b85f8c914418e992348b012f81dcc9f5ec2f0388332a3543315eb77. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/PLB841800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f48d65c5da7f07438d6223a5f1248e7733a6df7b4f7244b169e5802e84ff12. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB841300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8179163bd3a05a83b87c0689e85cf258a0661e239a80dbbb254e24ef056eb69. 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/PLB841300236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9ee9decdb8661b3e9d862d46da52d54e04bcb79c077b5b93e60dcf4c1de04e. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/PLB841300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe04a370fa9b87a9bec36caefabfab01c440ced6b7be8f37c206bf572b5e6ac. 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/PLB841300239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608bf984b1ecf7da05406dc6baa8e8bdfb47369ae15b5b75cde1d772e8e89cf4. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/PLB841300240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9276b7344b436ddde5cd7386f57bd9592f98b0c956a4be9002158ae7c3b1b4bb. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/PLB841300244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483fc4a0a335744fd531c8e9d0054d180e26599cd97199eeb77613d1013e3fda. 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/PLB841500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8241177eb84cbfc2fe58cde2e6e9fc390e69dbe76f22a3edcf550f0c3fee39. 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/PLB841500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622461925761459c6ab0ce135d3d014d12cc45330f3951e7d1780bb720172798. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/PLB841500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c39e09136925b911b66b4724e3b9e5a389b1ab35f9834d5a89a75461e913167. 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/PLB841500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ded8f3c341097560a8bb59bf2e1f511dbe487b98b8b707b6621166caa14e534. 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/PLB841500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e80fcb7406a8d4e5a94b17212531b16d501544e09f5fd501d3f3f087179d19b. 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/PLB841500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0bdde1f0f79bfa61ba5705d53a068bca53029b0574a06e94cb8b03ed7f26f9. 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/PLB841700145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353d5aab661d413faa764652df28177b712c4dcc5ec182f4ad1d226a200c2694. 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/PLB841900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0405f42906fe30b6a2e437569bc6dd17c0e89a8ac034c5bbbb44feea898192f8. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/PLB841900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f89122615ba84aec5a40e498a9a61b5bc82e29c62f2ba869eec49fd8e3c643. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PLB841900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d165098e0298a8de94ce51f8c5fd657a4b078f3d0550f2e875739b63120eb6. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/PLB841900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d4c6c19370e553fd1ce7c9c9893a024b1a19b85492b31f9219bec87e997ebb. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/PLB841900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e828db0b20712d824db0eaa9ae1a3e62ab88d1222de7c314872184a3bac6293. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/PLB841900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665976a444f271497f1ef3001be5294c88905bd8deda3ba9c55cc3e80050c04a. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/PLB841900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2314740b009b296ec267e0f2e0e4c411ad0e8cf3a2dba80820abababbd9119c2. 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/PLB841900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ee84b5d4bc57e47219c4a65ab3042b611b13542689978e72d1352ab3e58e3e. 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/PLB841900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2026b3b7ef40df0e0f8b13cf351a90f409e3d65c1f19a1d1f905eb3eba0d64. 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/PLB842000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43aaf206400b098d8c44acc5ba3c82e0ad47fb0cb4e0cdffbbb2285c0af4f37a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB842000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d0d739daeed972ec983433d0bf394162dfdbb4c3f3a854c1d50a9adc07a299. 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/PLB842000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b88ea3b134f8b28da20ee613981b89a150e5ea83e89b449e1f955a1f1c6e6cb. 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/PLB842000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb24b0ff29a738053bb6d9ca8a5220fc83143f7622546b11aa3cedacf389e1d. 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/PLB842000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63759bf3f4db368fb4152f234f028f6f7fd1976d34997b25afca20ac491bc1af. 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/PLB842400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45524ccf855cc7b9f10e04e47575b8854882db7a9fa241b28ddecfc2df2ec34c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/PLB842400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891b00a5fdb4ef18e42b47c0365eefef557730d34fd2d4c387191432d06a7678. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/PLB842400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297bf44f91015971fff6c8b26ad2eb5e0326595dafa7bc701e49ec5ec13250aa. 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/PLB842400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d7139f434122c8fbde3a5f07e50861db1b599e093ce8c9394c224aab21f649. 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/PLB842400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1070ec6974d75ce47e2e3617118aff143d5c6061d298d3f6f0421349a17646. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/PLB842400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118cd6012b21f8245234343966237a289547aba24b3c6f3788bc4a099d8ec293. 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/PLB842400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a24a5eb93984e552ebf4743ae24684daea8eb71fcc5f8dfa0638925cbe6058. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/PLB842400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65f8b518a88be6fe7d6e37796421507b99326b34b9f58eec9d180f78d64c317. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/PLB842400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c26b3c657486a5dc525cbe3f21449b281ad0c987b4a0ae4931b332f5dc8a39c. 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/PLD642400031.
What Have You Been Doing Kasia - El Búho Remix
Tributaries: A Remix Album (El Búho Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df968cd4031284174b0451dc314cd30edf1e82cbed5970b9fc69e32f62675a1. 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/USCCW1610854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9a8f231903bd26c68c641f3357ce678b15dc40825331f850297c50ed89e806. 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/GBPVV2003863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30f9e3c541415c8b2edbdaafce86ea2458653974403d49de10647dae9d36915. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEA710819040.