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 0x081832e8e309063847d165830d525bfd43b769d3b65423907b78b7e216cbea69. 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/e634b728-a665-4a24-9afc-5139877c43cb.json and https://artists.proofprofile.net/proofs/artist/e634b728-a665-4a24-9afc-5139877c43cb.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 0x5898351626d800b61857d701f50890687f8fa2dec36c19eb581186fa04fecedb. 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/QZNWU2009561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f5d61360fbccfb68fbf1f804b1cbcacadc86deb091d088b430a7ba76a039d9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZK6J2050667.
no one is reliable (Nick Pazz & Nox Beatz) [REMIX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c43fdc455fddc9eff08b0a10395919ce8152413c0d931107e3c2c074bd893f8. 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/QZNWW2191373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f9064f2211f8001dd84e17c17daca5ea2e4a76fa527923bf9d3a7c226d6898. 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/QZES92226405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034d5935dc96ad30aadfa4004f869d0970dc6b988ae4a4ffd347f07d06f8b31f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZK6J2270861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b12a3414a9234742ffc20c7ae5a66eadf0830eee95894d8c430eea8f7944523. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZTB32231349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43110e71ddcd12bfcef65bb1b8d9aba67c122648185afc9397692305cd4df745. 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/SE5BU2201363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa911fe38cee383c900f910b2ed29c424320028c5e91225640d76c778341191ec. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZES82342853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c79cb5cf178d7e0b3f6b1a35d6e1ca34cbbef5bb7751e073a63b2d520355f0. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:04:22Z), 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/SE6XW2314452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb824af2e074e37275ae840298ecf1020371d85986c9100b9f27c73f4e00d7e9d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SE6XX2361548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc7c7f98bc96331d67df6c7611b2fa9ae2c63bea186d522f938294b06b4a644. 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/SE6XX2314444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260cf5b07ce0185052e9fe2226fe6499f77d6491f5376585f040c6e3fa6e4dee. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/SE6XW2376372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd09ebc0aadc7493d763fc6ba06685e7e2a7d0adc1c921c6a7b1912195fc06f. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:01:17Z), 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/QZFZ32481332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a13fcb19cb8715f2189836041508339f0f5d708fa68fbd3f505e22f32b23bf. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SE66N2395765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114fea182a67f35d1e52f5ca266c4e622b4365afed856a798ddd5709aa07b6de. 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/SE6QE2410645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e28cfb3543b4bf349b2ea7efb9faacab2ce9ea03f235caae75524c84627d2e. 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/SE5BU2450465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439c813196d5068fcdc4999c264dcefd8fcd2177a23ae3d5b312e70d8920d93a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:23:28Z), 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/SE66N2326746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641bea5080ab4dcde591b4dc72693efcc0e20237f19ddaa79aee534453506eca. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:28:59Z), 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/QZTBD2452469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855939aaf0aa0298ba747105ad56565180ddaa7746ef58f88da890b156f6dd27. 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/QZWFN2410348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7e5256314a39fd2a9acc66d398274e1a425c8fade1454b0e9af209f47ba8cb. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZK6N2586393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e174a792c4032cfbdc9bbe600ffd110f9502640c8893eaf1d8a70212a816b1a. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZK6K2567188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7e5256314a39fd2a9acc66d398274e1a425c8fade1454b0e9af209f47ba8cb. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZK6N2586393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe8ac8eed87e46afc8d9ab07b7ac3ee73b84d446fea9280903a8e053058edd1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZZ7U2406358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8604ae85380c149344b0df0e52ac63ce36ca76443345e6661848c148e612d3ab. 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/TCAHK2376390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb359499c05a84d64c77215d2dab662e9cc47f8eb25b650beb350272eb02c68dc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHN42429029.