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 0xd6f7f6af947a5cbe7404dfbd1e89ffe986b714489ad652ef5506d6603f290781. 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/31037fdb-d806-45f9-b947-e387d70c0523.json and https://artists.proofprofile.net/proofs/artist/31037fdb-d806-45f9-b947-e387d70c0523.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 0x262068af3bf4180c28fa4d6b0b22474fbc8222497fe680febd8b6109bf143849. 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/US7VG1776647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252aaef171aba201877a9b6e130ddff8ba316bf46083f0425db04471b271d0bc. 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/US7VG1776649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a32cb03bcd593f456845095c9661089895dd6a22c4ba3efc40767b08f11415c. 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/US7VG1776652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9817ffde0988f8b95d9194be4656e0b3b4c91d9cee80787b17ea82fa4cd73290. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USLZJ1915286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613556780bc3211d18ae9e393dd9b81397eba746e013e96e035862dc41d95301. 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/QZHZ31970016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf78b8af75d52fadfadef24bc77a876f405e43ec15317e3817a569b33aade2ba. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZGLM2077532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904b590611a514e100432f6da79197fa6427a34f282df3f9850d70d83c7e8b91. 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/QZHZ32058909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0a294d0985812e9d7b9f3680984527c9f56acee394561ee50bee3b21887dd2. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZHZ42019009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6866d50db95600bc5fdfb75c2636c529892ac18e367d543a44a42b76d255faf1. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZHZ42019011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e61c8e5f2df9457b3067dcab33b56116051cbd63400b9237d4f58302b49d97f. 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/QZHZ62177728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167ad22796e83f8b21b412e7abd1a6c764a6378dfec3d394e1f97ff0a210fbf4. 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/QZNJV2158053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b3ad2910d9dd41ce189f52d54d5dc6d15722710fbffe2eb9975d00dfd4deff. 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/US7VG2246510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24d7cbb9e679ba9ef943432f6e423c47832d2447b4c108fc95f703c6c6cb20b. 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/US7VG2265681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e61c8e5f2df9457b3067dcab33b56116051cbd63400b9237d4f58302b49d97f. 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/QZHZ62177728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167ad22796e83f8b21b412e7abd1a6c764a6378dfec3d394e1f97ff0a210fbf4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNJV2158053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b3ad2910d9dd41ce189f52d54d5dc6d15722710fbffe2eb9975d00dfd4deff. 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/US7VG2246510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a5888eb3f323161aeef06af181c0c2074108cee68b37d7153459ee957c8b20. 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/QZGLM2208560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd364ff9782478f20f86a132558ff742b0f948eab690b8903fbdee3798a9d990e. 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/QZHZ52136033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc15cf5f19dc8dd597717ece9d8bd5c132a8750753cb3a9f81af2fdc79a9143. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZHZ32267011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa389f753ac8354a80bd70275dc1cbab0d8b01ac5e3a7b340779412597c9e734d. 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/QZNJW2279183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe331c0cf3e023d689d41e69f6c486114934e4db7c04c9ae0eec76e2a174f4bdd. 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/QZGLS2323691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917d6be252ead9db4b5c830000afcd320cce2cd0f85592414e07664ed0b4a71f. 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/ES71G2317167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a63733b6d6ec17ab7de6ffcc986f8e9b6356a056dd8036f81cef863df0598f. 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/QZNJY2371976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bddf8861ad0b46fd6c3f09d8cfc31925b2dc68366767dd33e3bf13e80a71146. 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/QZW9K2350498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755b802517ddedb9ea86acf83eddf61aa9bb05b8fbe88d5512f5278bb483fb89. 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/US7VG2434069.
Kit de Ocio para el Trabajador Contemporáneo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03345670efc35c4319b258181b5091cf1eb65a8c7cb2f0da464e1d1bc9be24f6. 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/US7VG2480558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe331c0cf3e023d689d41e69f6c486114934e4db7c04c9ae0eec76e2a174f4bdd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLS2323691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a63733b6d6ec17ab7de6ffcc986f8e9b6356a056dd8036f81cef863df0598f. 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/QZNJY2371976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917d6be252ead9db4b5c830000afcd320cce2cd0f85592414e07664ed0b4a71f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2317167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bddf8861ad0b46fd6c3f09d8cfc31925b2dc68366767dd33e3bf13e80a71146. 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/QZW9K2350498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad4d315ee03bd1cd16bf2c934bb1b741928876440a5c51240214f562a42b0d2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US7VG2480560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990d18c77b5e625d54e3bdaa9f78bfcc332fd0a4d48dfda83b7939b219457134. 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/US7VG2480561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755b802517ddedb9ea86acf83eddf61aa9bb05b8fbe88d5512f5278bb483fb89. 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/US7VG2434069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b05bb1c7bda4a6fc7aa2143fe014ea4a1e3d9280001087edbfaa12a7853d660. 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/QZW9L2225913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6e147b00ccffc54f4bfe987567aa936197669f641a58a6b0db81255a067b8f. 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/US7VG2480562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd2289e6f1cdebf61f436b10c94e43808787c9deb834ee386f4f7f435a998ca. 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/US7VG2480563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6f14cdb9f7e7c35a8d3c9fc4c805ef49aae2d9d616bbf7e547fbb8b6f42ab3. 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/QZTPX2258649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd97576f1859f12fedbf0465f4939f421d655cadf7f1e456ac54aba42654ad3. 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/US7VG2480564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4e1120d001cc182db73a7e2cfa9302db06f5cd942722d50f00753cd126a1ad. 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/US7VG2480565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260f24269ab494264ff08fdb0b6d9754cc06c616e9860eeb109a400a8796a1da. 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/US7VG2480566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ea7797ce1b87e065b3f9c397521a48a74c4b163728007f2c942fdcef89c83c. 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/US7VG2480567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c492dde810e80bda0e9dc9efad75902a09b760b5bdd5ba6a8a893d507c363d1. 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/US7VG2480571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500d5d2134726955290678575fad989238fd628407540e69ebc1efa1258d5d06. 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/QZW9L2418629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa920303acc6dba59be918737d7235a67d43c39582ab6dee0908b3a326cbdb301. 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/QZW9L2440736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04120b0476b2e991e46bc250c87a942fe1c53d1cab52fe185c6f693a5b60dc76. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZGLS2572587.
El Rapado (versión El Sonido Del Javier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0150ff86a18d13c9802dc78f1c423e63d1e163270859d45529a13d08305d300a. 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/QZW9L2307634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8f4e69286ef90c1e40f5674b45c2c9eaabbe666757c02a1cdb1986aef0d397. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:58:20Z), 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/QZNJV2038129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b05bb1c7bda4a6fc7aa2143fe014ea4a1e3d9280001087edbfaa12a7853d660. 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/QZW9L2225913.