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 0xd4c43527a327919bad3cfa4cf639a7df45d337337bed72c738af2d7a5a57b02d. 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/59271881-8f7b-41f7-9f87-1d2dfcfd50be.json and https://artists.proofprofile.net/proofs/artist/59271881-8f7b-41f7-9f87-1d2dfcfd50be.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 0x277e931ecf7605faca7dd15d4abb195ed08d6fdc21b73393c81f7aae745adb2a. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:21:00Z), 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/QZHNA2356765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7de9041c34cc6fa5f7ceea1996298fe6fc3c5257ece24247e24118a8d32d328. 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/QZHNA2356767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ec3421f8b1b3a8c8fc592d291ecc680808891f0800deea63ccefef67ddd815. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZHNA2356768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff713b20902ce01674839225bccc63c7181d5202156249b1bd4eb20095d1bf0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:22:41Z), 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/QZHNA2356769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2225ac7ae941944025914670acefb491a97acc46ed46949bae312a68b511e28. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZHNA2356771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0640f19fed900f41f4bd4579980b4e21611bbb5f0d856827c44c6eeb302e459a. 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/QZHNA2356772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0e03a16960073b3ed117c58f3038c84a9bd635c4be14f33da132ffae513cea. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2356777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9433784650b40aa51729070e28b6baa04724e592614a1311b056493558396d. 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/QZHNA2356778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9757d93370aa967b7cc9fb11c0d1007ed231da30ccd22c6ff69d81f836f75d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:09:26Z), 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/QZHNA2356782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591d16b4e68b88038a9d2a3fb3ba22691d87242a9388e5ad1a6e0cb05f8a08be. 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/QZHNA2356784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b3fab96ca9dd49571efedd4af58c333aca101db71da707d83ad90474b76b62. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6N2104555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7f2fe190497cd91f02b5941325743d27bd83408ef5ed5edaee02978d050d14. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWS2164918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5e79aedc53f32d0a47d7b4609846fca4e07d80a1b0a6e4b0839fdd0313bad0. 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/QZPLS2144476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bca6c0ead382c2581ed6cf5e09a653875bf10e1bce8874cfd05f70171b72e3. 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/QZPLS2144477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f331750d1e5bea3e922600363d7d68def4eb0fb04566ce60947868f4c1b235. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZPLS2144479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdceac3e7aaf404e5bff64f14013af8b0fa97e64df7da1be7239a5f6ef9627409. 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/QZPLS2144481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5622d81934aa2ba541a7dac778eef8e1206a34c910c0c8d6af5ff4c70dd2aa7d. 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/QZPLS2144484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2220b5f9c03257b212d9192dac5a7eb73683872936fc78e45eeb4620880d56d. 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/QZPLS2144491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad989aa0d42a2bd959f7ea6ec66a627c0819540d63850249dd5c3fece493b94. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZPLS2144492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32294f9cdead47e70d351af8c50e0b11b58ae48692e9f20d26c54ad1405186c. 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/QZDA62277781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2882a284366bfb2e765ecc2adac1dbf8b47065ccce1038fc918e0d1049f18ee8. 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/QZNWX2294310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f1cc89ad6197c9f918d330641cfa162cac76d1f768ab2a4d8d624b147a695a. 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/QZMEM2328385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7b4b8d1d425e27d988f22e7a5c426bd72a3f5855fc843701019110100624cb. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6K2492478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f801bd3967a5d755012d6271e06a386c537de2263713e862ec91bdbe272880. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:43:40Z), 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/QZHNC2426188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5b672fdd9f5ef75634b548a467ee98bea867dbe5ce123f51560fab43e671f4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2426189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a81f758e2af320af73a73d884f85fc948074622fd81e90ebe7468876c5d9d24. 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/QZHNC2426191.
Progress Over Perfection - My 5, Vol. 3 Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98f52d61d9c04d214b74e24e67ec82cc41a29a5d57fd66e3dabde98e833cb45. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZZ7R2437798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbac4926e5499ad72ed0c8fa5698eb48eae826ea1c0aa3a1533b647a6dc573c3. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZZ7R2437799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04e822b5c68d77e3e9665f82f951df8317587e8eac1bf849f2c6c3471f7151e. 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/QZZ7R2437800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2ca9ca0dbd9db636e813cb021360c0616862d0bed73f68383b9cd3e68c5058. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZZ7R2437801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae33a21caae85ea6edd91f331d1e4e5f38575a40589f3920b3300917c9053c3. 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/QZZ7R2437802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8328c1e2f3d20de15d4ec763c45c006a80feac8ba69ea8a415fd55da3da9199e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZZ7R2437803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695ceb24427d4fefd5b423fb7c0e359420272c555dbc46974b2403c8687f2760. 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/QZZ7R2437807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bdaf5a6cd6b951cab357be8220ba739deb10523b56ee3ee74358b6da634ab6. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:13:51Z), 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/QZES62582128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3062469a109f9d14db8ef19cfd31d218330f48220582abc7c41ea1e771ffc. 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/QT3EY2524702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109f9701cb33f62cda4913ed23b3125686ba7228119584f376758cde7f3436c3. 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/QZHNB2008547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813d31ca9f1195b51775ee90b7f5df617f6196c03a868b0308bb58f44db34e99. 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/QZHN82066730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7845cfdd208b9f9b20c4519495769547afd9d175dc4bf1d4972d9bf622e4f4cc. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZFZ22047084.