thumb|Shepherds travelling in Chambal, India thumb|Spanish shepherd on horseback herding sheep in Murcia (1880). thumb|Shepherd with grazing sheep in Făgăraș Mountains, Romania A shepherd is a person
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 0xc7885726e742b642a462962cc62b725559aff29626cf75cd1bf5b43894713fc1. 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/b46e271f-9cc7-4b28-823d-eb89c31db3ad.json and https://artists.proofprofile.net/proofs/artist/b46e271f-9cc7-4b28-823d-eb89c31db3ad.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 0x94acce07bca540f02e5c4cd4e3ed9f0f08987964b85998806c7380f8eb1941b7. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZNWR2315870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb8642c62762340a4bcbc86ccdfd75ce426d64c732511880a77fb66b2f702ee. 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/QZS7J2330372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4430195262bf13ed2512fab5c528697b78463c32434077bdeb418956001f7a. 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/QZWV32373377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1842c7a916405ab8688b6777606b8c3abe3f8e359d55e38e201c316dab57f5a2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZWV32373403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b9c2d7f4277b7564933297a930ae70ac478ac2c02285e37150bae688bd2293. 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/USLZJ2490462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd292861d45848f6c1c098b9e52686d068e4c63229a91c4f69c03f9f19ef5bad7. 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/QZZ8B2314702.
Wake Up! (feat. Shepherd, Kevi Morse, Rockstar JT & George Rose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016350bf9bd8bfd97e1a5c0f276480091df9ce39369189a8fe09d1310999cf5e. 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/USACX2000812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b7d4fe33bb92453b6f1fac0382f0ee81c1bd62c6bccc0e79b796cf0c7225e2. 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/GBWUL2416194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36f9e6f9c76423aaf204a49f87d63f9091e2f628403f49e7cd1cb656882222a. 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/QZWDD2448415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc12f06a0250a60e5b9063f9ac8bdccf9ad218bd142309803fbe5ac376a7f27a. 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/QZTRX2476972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd1eeee01275294a7ba73498839419973c4a77dcfb6669b747d5a8473352261. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2448215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0a824b58247d7f8f924f5eb5450ac8ff528b884584ad76d371dc7761cd5a31. 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/USLZJ2418540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87727a557b2a60b4e2d95868bf9eb6c79c0bad0c202393f413d6d033e6671da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USLZJ2508485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb641965357365566eebfd308262072bddff5eeb9854bd96685f489eb2db4eb8. 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/USUYG1429151.