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 0x7f6ae4736b86ae1288db5e1358300fdc0c292ac63f7492516fe4fe5a609517f4. 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/3f824d5a-fc18-4488-9043-c5465e0c3db5.json and https://artists.proofprofile.net/proofs/artist/3f824d5a-fc18-4488-9043-c5465e0c3db5.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 0xfc95dea87fccb50a2b9cee6b4f69d8ca9516da6faa8bfdf980c3d4fa6298c1db. 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/USTC00940995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d0664450968222459563fb8e32be4cf39dcef388e7455ea549f4411e0e74ee. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USTC00941001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3146cf7248d4d8d7266fe282678a85aaf92ca65460a3860460b6a8e79933d017. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTC00941004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104170d853f901f6d1e3439f2c1f70a398cf4d23fa4362e6631763983c1b215b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTC00941005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081f0bf4ee2c066cdfe5f9a3587dc178c93832d85c50be6b24881c3f64a822f5. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:01:43Z), 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/USTC00993654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d2e752d2a6cb88747f1e3c9a15fa01ebaea6647d597ae8db5da1460b8976c1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTC00993658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202b062c0cc6af955b9c0b44caf3a0146c687266e6822ef7ee5837a3edfc7d5c. 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/USTC00993663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fac2863bf18dd5393c4e041c80ab9cd0562b22532dc90d12c3de693b7937384. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTC00993664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434fd8586765555212584e8788c1e52b43c18555b4d9224e408541322db203e3. 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/USTC00962758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c12acf266ebdb79680ee4f371f44fa1f42cae2fd53337a1230beda65fb8b901. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTC00962763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af34b622ba5517d207bd0a5210a96bf1cd522fdf8e267bdff0abd03d68b4e98. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTC00962767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40697ff9d45a3157389c90cd6a19cd77467775b896c5d45090f89ad1ebdb57ca. 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/USTC00994938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed805aa10dede5245f0b13543d766f2377a51b4b116f23c462c77c160ee1fac. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:31:51Z), 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/USTC00994939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9a9c0428f261487d40171dc95a229c84f0b92af4d836d0aaf34a2e5977ff11. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:50:09Z), 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/USTC00944510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058c58c70492c657042a8a75d914411f93c194ec821b9c4413e5407bbbfc8319. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTC00944511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857654436647cb2a88b4aebb7babf292eeb8753f03447763f191c4a55cc2605c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCABU1487614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e6d53c9690b6f6a509ac179ca0ddfb7ac45ea67dcd4576b7bb206ec3686c71. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABU1487616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ef6534813de9e4a4643fc472e98ed4d2add758a2f0f1d8c2a6480f65461e99. 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/TCABU1487620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3f329704cd70e00eea4430554c676e29ebe6bd837ebc6320dc6f9b3c6a7bb7. 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/TCAEN1900856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47d0b5046acb528a745bb788df0555d1ba6917d7d931d528f22c18d5e921733. 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/TCAEN1900860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab94995853067e178645a6719c78bfdead79c958bb7a68b37dd6c26fb8a91a89. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAEN1900863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88ebc281254e7a211e0bb27f6870e89ed74d585be913e173d2d4cbbb9312063. 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/TCAEN1900866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1463147a3557213ce50138f57251eb1fe81dd4b8b77f26f5bb2c900f7bd807a4. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:50:20Z), 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/TCAFP2167102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49510995cbd0b51d7d322fc6893f8b382647f0380d821b2b586c9fe091fc67bd. 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/TCAFP2167107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d442c347fcab8c2f345b926e1dffbc881df240aa0c12b561ebf6394e562d16d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFP2167133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23f2a7eef06d68355d319f6372e1d2f0b5bb895afb1cd2a702e248f04fdcf91. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAFP2167141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd080081ee6d2cf4a752d2409deff035c900bb3adc63d54b99f86192a4681c711. 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/TCAFP2167193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a7c8a4fadeb95615a6ef68e6c498c85f6b708b1860317409719aaad3caf428. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFP2167271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c895e6305d9a07f2d1d7a42c23043c4cc364672f2d97f0c45e01efc79f658d. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/TCAHK2383453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250c100e58915f11cf3a2fefb479d9b8e60114d3fc8cc454bd3ec612a91d9557. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:55:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHK2383507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6651316acd59fda6ee9198021fbe3c6ad67c2abfc363d3a0253f6395c664e0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHL2302787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1d9efe1ff022c1c5f2eb1f8fc0150edc5290ad090724ad3e01b455b52e05a4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHL2302875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d24c82a525bae7b47a7d361b4aea2cbd56326203565bb4b3735171daac5545. 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/TCAHL2303185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08746ba599ab913c7fa1c7bf8d77a9b52862edcd398e70206d27fb5c1d6dd56. 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/TCAHL2303243.
Démosle Con Música: Viento En Contra (En Vivo)