Steven Cravis (born, Lexington, Massachusetts), is a pianist, composer and music producer based in San Francisco, California, who scores for video games, television, film and ringtones as well as rele
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 0x6d52c08871764b20d3f4c09c57f1a941f58f018daa860234c22e9fff6bfa93da. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa9c2390-ac0e-4dc2-89f9-45c8a887c264.json and https://artists.proofprofile.net/proofs/artist/aa9c2390-ac0e-4dc2-89f9-45c8a887c264.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 0x9ea9ac695c85102736967402e752aaf429da4d8f31f18f29a9eb8c3f91566800. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:33:34Z), 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/USHM20314258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7f257a5054fc0ec917a5196ff51ce52369ab1cd7602b42548fe30d60d338c8. 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/USTCC1076572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58e151e08d9785013434e3c1fbc9d3259600e8c0cf3168fd96b7626febd5c9e. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:08:19Z), 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/USTCC1076616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6365a33b8341504eed9c8ca0c44fb2e39208073b280e240090793d68b44af858. 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/USTCC1076617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abfa79c9f9effb1edf474fe9ea52e522a900e13f73db85266a6ea5fc26e6c99. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USTCC1076618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbcec1b358b137ba034322a26f25f39ac239c7a581557e5ff290ebbac34c2d8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USTCC1076619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613cb8a029e309f4321f20e1a263a9b5094437f9afc15dd514e617586457df91. 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/USTCC1076620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2920f149f2bd45bd72a3e21a99bf18640de236881a7d6ead898c865e4a302fc0. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:30:51Z), 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/USTCC1076621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9d512e357b823b3d22cb059d47c98dfadd303a2456bfe0cd53ec04d5c48511. 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/USTCC1076622.
Promenade Sentimentale (Sentimental Walk) On a Steinway - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50566d64d4dc9ba3dd84a487eb960de6b562afdf70869e2481359d244b8434b9. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:23:33Z), 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/TCABK1276634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2276fd29a144a66294488d42facb57d1c0fc074a904e94e7169db83c4946e9d5. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/TCABQ1335769.
Live: Center for New Music in San Francisco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb5ec7801f96bf4b2d27c3f5f77128bd702dbad9ac2cf79c2303e22fd91d9a6. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QMGBH2500801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa6e0b55f9c66a54ec00f5987fe62e549f13d8fc5b8170737b5fcf1038e3420. 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/TCAAW1144501.