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 0x18e046e9aeb72fe40178b49131fca976974f66e3671e4ee2b3ea2a324590a7cb. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15707c20-20ce-49d3-aab6-b1b82efc815f.json and https://artists.proofprofile.net/proofs/artist/15707c20-20ce-49d3-aab6-b1b82efc815f.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 0x78b2109f7c71611013b797a854f8601a0ade0bc41ce6330dcfd497d5159362b9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCGH1906977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf05834888e3c8c493f4af6563a0d890eef734bade405cddb361fc24348742e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GB7GV2311110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb564cc96d229bf9ba4b4c074525a2cf9dc07cb7f3987e96bde3cc04c80adf8a6. 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/GB7GV2311111.
Purple Funk (feat. Saeeda Wright & Chubb Rock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9348d3c291786e568d293524035fc82515b86274eeb347ea9a264873108e4b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB7GV2374892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0321d40d22997260693cb3ff7d6e7f56a0a47421502f586d63358f1108c86a84. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2389163.
Good Feeling - Atjazz & D-Malice Vocal Dub Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9639a097a471c6642ae960287a67753133e1c5c1fae98beff7e1a0f9aec637e7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB7GV2374899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868273133018111cfa0d34ff434fab8abc752221a8e3100b299bd39796d24570. 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/QZHN92406641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1160c8436c80dfbfd06220ae5864fa1d91a3abf9758add84dfcc150a9a18d5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN92406642.
Dance 4 Me - Extended Skate Mix Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1238874bac400fce31920172a8b904ae7d58e0878959c64daea24d3cd5bb1d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHN92406644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2cc4dc66aa1c1dfa06dfaeeeca555b6a14ffd0d9c681f02ac1b28d458589b9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB7GV2311131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2eb830d00f309c520179fae69ec051fb756bf22b55ce0c7f5e8b02abc4650c. 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/GB7GV2341022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f6d9163aa8d6ba5860652e8e447327d9ae781311256ab4d083622d007984df. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GB7GV2341025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58afc47af08923782d17c4b2d5a3fa25c3c92827c69edafc540a7ebdf3be552f. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/AUXN22102023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472de48149ed55757d9e6bcd7825f58263849cd663ee8ae4621393daaed33800. 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/AUXN22102024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8067af123063e7220e20efb530be92fe2fdd16dead3efc1968b9841c7c43fb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZFYX2273869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3da833450eb8998375976506e39f04eba5ff915fbb1db0409f90e394a0afce4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US3DF2267330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43af5961f2ba48b02d93adae7e497294ed3cad3cd8fc2713d8eb80d17964c2f1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAFW2107655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa7e66fb52d4877a36c193b0c30329ddf7730a4e90f56596067d417b1705095. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USDY42152351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb60689b7bf4d34c463253f76376eb2eb5e73a06d5c262a28e209b4a2803fbff. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4TX2004047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0a82da8ef6395e5742f2689115c6e82a3fb36fdb26cb414047a9f5720cfdb2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TX2004052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf705a14ae733f92ac4aea47697874949072c8349138ad5af22b8a7b35d6ce65c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM81492909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0a16a68489c1c710556dc3516c1bf2f31aa4c7547238a9e44d604f79fec57b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZDZU2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b74d4aa0df07cccef73bc762366010d504bfe6a1f41765aff0dd45b8aed878. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZDZU2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000bbca07387268646bbb3fd57cf888f52bb46e55acf8f21bc72770e2b155580. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2P2152724.