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 0xbcb1a027d18081d1aeb756a93ccf1cd989e1d4818c9a6774729586e9b54b4527. 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/3d93f0f3-1b9f-4281-adac-0eb201e17d09.json and https://artists.proofprofile.net/proofs/artist/3d93f0f3-1b9f-4281-adac-0eb201e17d09.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 0xea63307148a8941ca16364140364b95c40486749c2210ef9b17c53e82ffd3ab9. 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/UKXN22206020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9987938b25f0ce6f3984b340028531b437bd1fc519b57b199206d837d09b49f6. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T04:58:56Z), 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/UKXN22206021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68a8fb4b74f57e942f5665f2746ba2a2cc9c20340623d4fd7e13d6b56424173. 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/UKXN22206022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbedf7a09b725fb9db2cb697b319c5e381954c104aa98f214e03e71b72a7cb81. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/UKXN22206023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1199f2e8cf8fe569084304352dabfb45f9640b43f766c70b64a5797dc9402bc. 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/UKXN22206024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424e88e9c2694ab93a6c1323431d69697dd9daf9365b1bfc7ff5329bfee27660. 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/UKXN22206025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f71bff6d1a49888bf1b32afdcdd2a06d626a09d27f2299a6f4abe714b3185d6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:05:24Z), 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/GBLFP2328730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32d89570e251f4129e38694f265cd55d3634cb986c866fcd483eb1f8b33f422. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/UKXN22383241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc414de8b3363ffad6b026f64165ad7f8cc27dd6b89a35112952787afd7ddc186. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:25:09Z), 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/UKXN22383242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54731c2e1d2fd71d08a7e2a4c88baf23660591f7ee3f42369fe170e88b50d10f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:58Z), 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/UKXN22383244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4156572c14b8d5a03afbfd0b7bd3dff2332845d8442fc8a6a1e0ad587239b18d. 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/UKXN22383245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9562e689e1b4c8feaaad1e045f5264804abfd797c7ee6581ffdcc3cb2f6778. 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/QMFME2489545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fd08753de7c06e697e1abffeb064ce033c9620e5efb985d18a987c44bf9a6b. 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/QMFME2489546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb63453ef3a7c83044e518d2039a052b765b01e5821cfdc1649c7cd88b2552b. 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/QMFME2489547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5091062e2a90dc44bac62a0ca3201b283fecd404bcb06d70d61d1174d4f9db. 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/QMFME2489548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7657e08bc95fbb0680be32da9f6fc4bc6682b20889c1918c15db910fd9774957. 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/QMFME2489549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1211d11724f5636af64467d81615fc847d2eb154b1563f885423e7a0efd0841. 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/QMBZ92420048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd31463a9acd80feb23d3e2ef7fb8c9bdc50e98aa5b680df0342098f8ba87eb. 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/ZA9WZ2400009.
LOCKO (feat. Berry Jive & TheSoundClout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893fa6b3116dcd614d30a5b7bc9a653560cb998e9c4facbd1791534a4d0fad4c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZA56E2416351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaacb0a11f97b56d2acde09dab11bd71d6fbb3532cef3a0c3256dec07ca4743d. 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/ZAQMT2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafbe455e524fe926b200703c399fbe06614a08e538647a6234300347c5dbdbc. 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/UKXN22314015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d768675bc22e678a45500ba14d1eb697dd9802db210f75d08576027494f4b9. 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/UKXN22314016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20bcbf70b7c1f4545765d8668e32b269a5479d5f8e9068a68a20203463d8bb37. 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/UKXN22314017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f6752e746fae25d56a090decb34525f7a34a8d99b688239e48d0da4db5e06c. 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/UKXN22314018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217031e6ae883f2351e603193e15e2c87c55452ed8dc6752cac478c402c9c086. 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/UKXN22314019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d84b5a2769f39497935fadc04888f5ee118397955e9e7f5011d05cd2924366. 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/UKXN22314021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaeaa03947eae538435bedac70138a66a170333f4efbf3748b04a3d19025426c. 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/UKXN22314020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3642852b98ad8059f9c3cc199f36b6ce96e0fb7e52f84864d9929f55fdacdc. 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/UKXN22314022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8288843c507e56916e3bf95fbc6488167aba042a62a431b08af19286568f6ea1. 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/UKXN22314023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc095e80ec3a75a9090968839ba761255707e24219e65dceb5672167b30724de5. 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/GXF9Q2595737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01a7d82ec2b47946827bebf3f0a5875509a5ac8fe9520b8ff0597b9fab2b1ce. 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/GBMA22317625.