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 0x5d8bd0bb556475fd1e6f6851a52f295f0e1d7226110faff1638c143cf9a9d7a6. 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/b6e619c0-a771-481f-865b-698cb2da41cb.json and https://artists.proofprofile.net/proofs/artist/b6e619c0-a771-481f-865b-698cb2da41cb.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 0xffac198765192c3e509c6e7338e1187db552b83d168ad621e9486dfad22fce42. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZK6K2214165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14eb59d4d2e124272b4851bc498a26ba09e9be73dc877fe591331758ecbc9ca. 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/QZMEP2235858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254e9ab76058d746e9688982ccc15afc0f4973d035050da6df52e55be0c65013. 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/QZK6K2214166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1386860b8763cfee56985f946a88a8887c43d9b500997bdadc92defa6f34e7da. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZTB32247730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fa32ab773b6ff8c291243d9a9b663eea5abab0209d09d93475bf5d6330aef2. 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/QZTB32247731.
the chances of choking on sparkling water are high but i don't care
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593d6125dd65b8a8e801b4a396b6ff8cdf349ee6da02fc891690b7876c258820. 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/QZFYZ2339129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447806b5f7a18c380348cefa38b349851c520f83221aab83f664e92f6a2a6c4c. 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/QZDA82332442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef6643f558796ec68acab202ca8c7e75d493525a1bce0976074af7ba235cc60. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZHN82384477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2985ccbd25fe0d97a0fd9cd87c717af7ad19f76c43ad8e9867ba1eb431c8af. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZES52397853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d89441412f86a44c7d798924cf51ae41f63849abdce784a75bd4f7d272d8bd. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZMEP2382037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd892a2aee1b3605be37d2f0ef3468d545b0a753bcd860e27b9e4523b5fedd4e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZMEP2354726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8ec8f3088df5b4c68c0ab3331707df187e958334f9ba514681de2c812f365c. 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/QZPEW2404917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11b7369fbc3511b81c37e2821f10d924ca5ff14b133ed2e0165aa0f5429d025. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QT2VB2435923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb1c6e6b332c3f619c1de88bf91ffb9a90ec1f74a9ef7c3e0ff951b114defc1. 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/QT2VB2435924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4bc5bce7118accb024c04103f49082612835b3edb17b502fd6354b97d5fb4a. 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/QT2VB2435925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0752363c3290cdd6ab9181b54a052124ffd50462912f8ca61197d992a806a00. 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/QT2VB2435930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d6b9c3decca0e81a972b05b0f3a10520fa6ef0d6389a53eecccd7829bc794e. 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/QT2VB2435932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738f5e54adfbfcb69495d76e5dcf842e19a3cc70312561e097ba36c5931e5ac7. 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/QZVEM1868765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2e0d207ec562507bd008670a0d371506546feee24c30b52df6612e524688fd. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVEM1868766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb024096bc27b379fe17ea5d18a8573d3a7bd0bca8ed2a3179febba5a495419. 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/QZVEM1868767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe866c1173ed9984f67c28be23780f5cd27931a5e4de5460ee68ce9137b9af933. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZVEM1868769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa453647f7bb951677bc0decae536c9be10fc661ca49e236382bdea4d199f88. 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/QZVEM1868770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9577ad6bdaa49406e3f1006d9fcb70d45cf60751376c59dd17ad4ddcbf319e. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZVEM1868773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a7a5de633d82afe8e7311b9c06a60c5d1730fcc4fbd4826917d68b889d9bd1. 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/QT2VB2512957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf6633650cb10b94dc0ddb0bd1fd8e0b2421cd2b95abe7bcbb3cbb6e9965aaf. 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/QT2VB2512959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6568a266e0a139dda02afd49cf5646d07d46557c4ee50e5d6b734bdafd4646. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QT2VB2512960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcba8cfdd8f34ac980c47696ccdc2ba3297daeca5854bd8b2d1f604517e41534. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/QT4K32521802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe839b4ed469dcbbe5bf0227e847dc8664249f5d7c1c5479235cdcab48ee33294. 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/QT4K32521805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf59dcbbdd7ae32eb5931c7692813bd3df86a3c6444a2b1858d34a2157279944. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QT4K32521806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1bed6646c86885e0f57e02de8aaccc8a59d30e2dd0fa56f293fecf5d7f2632. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QT4K32521807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afc4dbdc2e938e9ffcbfc3d7e99cf09ed5a92d78561fc5fe9202f62f21282c9. 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/QT4K52564173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce830df4cec5172bc66e48bbe9a0322a2aa801ef082e305184f0a8c9bd185c3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QT4K42503427.