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 0x570f3a5a7fa81508e973025d25fd459e71db337e8bc69f33a0945e7fc3a4c852. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c07b14cc-0c1b-4265-82f4-8d663ed50a0b.json and https://artists.proofprofile.net/proofs/artist/c07b14cc-0c1b-4265-82f4-8d663ed50a0b.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 0x068f405d03b43493ec113ddf604fcbb82e7f5df1a293c5962f5e1710a018a22f. 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/MXF600901011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56bd63c2db8446ea89b030571039d12769ff8a35452558f5f0486b5390e8baa. 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/MXF600800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98333faa8714c0443b983f8ab98032da9ee721d69960a02bc6dd9059d2ac7164. 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/MXF600901045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cfd72f796858cc074a97925cffd1342d3fc36472aaef26492cfba2ad8c3064. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/MXF600901059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806ea7b56eb7fd00948e3ec00b028bf84559ecdffc7609f461488dd812eb3263. 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/MXF600901046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d04f26f44e47a763f81ec2156600481224c95a8660a114c2faf0073f1a02e0f. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/MXF600901050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd38a6fa760d3782d8e49c09b1381372a39e205fd627e88000c917d923892641. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/MXF600901052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf689cc8bd0a57ca49cb18301d5c5658ac380dee0d8f2314e3f865603d09d1679. 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/MXF600901054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7cc20e99014dd453e883e9556ec9a06b804a5d6700a1e5d95d6a8ef38cd64b. 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/MXF600901055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bce5abbdf82c82834d800bd410b23ce4a1bc1b3cbef0454825f38c247cfee32. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/MXF600901057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab86568b3a22795e02d7d4dc74dbfd71bd1d4a08bdfe6f8978d1cdab7088490. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/MXF600901058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6843fa698f79e5f7ac45caa5eec0d4806b027afa46e506517628dcd8174c2bd3. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/MXF600901061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d86582fa708256d765d5b6484499fc24eaccedf5c27d039e48817adbf65103. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/MXF601100653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac19f4a9cd61ec7b125099cc281c237467b18449e7ece3053333872735cc188. 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/MXF601200954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6f177bb6b1234cc9194d7947c514a017193493bb44f44ba1a41c2ea875f86b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/MXF601200962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9138e2f3676bb99bc6dded461d49f8fdde4f19ba331540ae42f7bfb6438fcc98. 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/MXF601300528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfe7e0f7d33256a71dac4fd3df7d7f927f5d18d9fac074c7ed5d2799f0516f0. 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/MXF601401020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879b99fb259649e6ced2df413661ecbadb5b6b11cf73fe8ece29ab643391530a. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/MXF601500907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb875e10a5306eb94a13507dee1d6424792d967ea6b84ddc29f2ebb219b8fdda5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/MXF601500910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f330e71eb0d542e8ee2b146cfc869ff6b612b5ce5325b8231af1de04d3a36c. 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/MXF601500904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa718af95f452adbdbf9be5763d07054047de7dc676d4e5f2a6e9469ce33b4b8c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/MXF601500905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8553bcbfc59b1db618d7c8256bc606aecc63b48bae29d366cb9f41b67eb72ef. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:09:35Z), 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/MXF601500906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27ad7a4725dfd4063c79d0d28093d06db3b3b099a2d965672871b4138cfa4bd. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:22:23Z), 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/MXF601500908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef2446fdf731f1e3d87d9c39fbea59c362667e277642ee334811306aa39c1f2. 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/MXF601500909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d234204b9483f24b7933a9f5cf07009554eea6cc7575db3c6cabe702f1ef5a. 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/MXF601500911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7842ae74e88202d675615067850b6598b0e869b03ca7b2d8d5936fb5112842. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/MXF601500915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6577708418b92a3257f95f65fd4ceffc19c0c47c83a27b4bda1e4bfb3a781db. 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/MXF601600494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e21d59003d89aaf512ad95981e4e3ee5d7f8f3fbe13a703b0d7233441b5962f. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/MXF601600495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa970ef899843a58fefb27f0da10c1ebf12e473398242a960a6c2b3bc87c2689b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:22:46Z), 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/MXF601600497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b1a0cec339ce74713ba2ef994d375f635d0027afb490806feb0caf00830e2e. 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/MXF601600498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff6c4e1b3374f86bedc8d7a700ffc1d084e344f7739d2454b343a44eb37b372. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/MXF601600499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec82ab71f65e39b49ea60b0c6257163cc8beaf6c0865ce596f4b6425dbf7868a. 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/MXF601600501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90da9b5c0e22c107b37a86446faf800b355415f6a8688fd089d3a99726e5196. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/MXF601600502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc3791e027996a5381c118e7d8bf30298e4e27f332a58c2082346072d8b5a36. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCADW1803731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c67a975238dbc09d554a065d15ce08d79f7f5030a75a63bcf9ba459d43cf1b. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/TCADW1803733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47eae4fe290b00702d0dba051617728d349a035ac680f43b131027db156f8bcd. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TCADW1803728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ceef600ac99b0fd1fd38f270211b6a008ed4b075693aa0d056fb048457d117d. 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/TCADW1803729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123435bdd3064287e6f3c8f38a6a9bc8cca0705b4331d5f64864c0e3535bd9e0. 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/TCADW1803738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d79c5987141a09b39476f49cda7c92e12d900c7dec3d4d2a7b660d9cdb6694. 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/TCAEJ1995616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b16b417b0b0f13a1459ae0b08ee7291ac584851a73ed553a11cd180986937f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USX9P2009138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68341732a575728a4a70b8032e09e3e1c96826995c2ec189ee02f945cb7e03a. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/USCGH2141137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefe1bc67fcf7df429f410c38e85f28640e3161e84990b1827498b94d420783c. 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/TCAFM2105688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91542979cdb5a6fb0e858fa9f1509bb65c0d0264b43d0bd4d99994c74080e60e. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T10:59:38Z), 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/USHM82254625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642648ebf99b2541f94d114bfbdc177dace0a4c193fe34716ed1db03b49cb50b. 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/USHM82254627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001622d77d5fe7631e0050efc389876d603641ab8f6c3be2d479e08a2b673e49. 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/USHM82254629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877e96ddfe884c9af233b05bbf337f3e275ebf2d99990207191c642fdfba65e7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:48:31Z), 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/USHM82254630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6892fbbfa0eb4ac13d638ad6b5d45037be6b8ed62bbd53a8d293facb2a4159. 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/USHM82254631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bfb4daf0b933dc205c15730393b7d67f25794fa898f7d8c31e4c397e064ffa. 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/USHM82254633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d2feabccf65c974c2495edcc4549f80bed281acec489abe02dc5a6b0e97fe5. 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/TCAGT2393376.
Medley: Ni En Pintura / Ni Como Ayudarte - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109391df3908893ca4b6d6f15c273913f03842110f5eb190df7d93fc282940af. 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/TCAHH2387993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd6f26d5ac11104642f4febcc10c9e94d877c3c205275ffb04b0817a9b6e588. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCAIU2434213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38e517b3ddea9788f546849a69b0cc0e6b83f47fced6ac765b0c3b151d3c8b0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAIT2434253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5dded132d4d1065efc74d14b74a3a3327a5ecdacb1bbc0a386c18ba9389e42. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/TCAIT2434274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa521c112d18ab668ebe71d1d48865109890e08ba7d1fe341da5adc5be7966c5f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:45:25Z), 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/TCAIT2434337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6735ecc4f31be376a153f4639b1938be4cb71fdd88ac572b4e9b54591638be13. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/TCAIT2434356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a84450e41c7015b4c1fb2bc8a999def700ff0a4df5fd7a98668f816fbf7093. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:19Z), 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/TCAIU2434370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ccc1f0db185bf45ba4facffba7680b32a6534e4bd9ba74ec73dcbe256f05fd. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:29:35Z), 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/TCAEP2034932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e399314e9d90387351c2a015ffa8a984b1e46ca32f4f2eaf11e003d7dd17ef1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:09:19Z), 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/TCAGQ2250399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f88ba6f0be287d2cfae5ada73cb8428b5c3ad44135357b675b0aa73cfae6c89. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAGX2363868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d2feabccf65c974c2495edcc4549f80bed281acec489abe02dc5a6b0e97fe5. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCAGT2393376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4593d714753b94073e85db2540966e08b506e838ef9e89bfa9058751271b024e. 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/TCAEX2021199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770c8c54316005b2cadf4a96451d1320f89de521f749171d018a5d653f5c181e. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TCAID2469903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bb5d05d437cc1b73c4a9b6480253b2ac9f8373ac5d3dd1a0ff58c90ea4134c. 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/QZZ8A2524856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef198721e7b3076f827b7d56a321acdee557252cc3c06ed3681068895ab278d3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAFU2168464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa987ea93900f41f5e3076e86a9b20c55e29d4754f84495341ffdfe3880b11bf. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:54:58Z), 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/QZGLS2087186.
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