Greg & Steve are a musical duo based in Los Angeles, California. The duo, composed of Greg Scelsa (born October 29, 1947) and Steve Millang (born May 10, 1947), has been performing and recording child
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f91f18163a35c69200660d169788f140bd7adf4f3967fa5bd8a9b04bbb64e01. 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/b937a5e5-4a72-4d92-8703-d33d4ef30f15.json and https://artists.proofprofile.net/proofs/artist/b937a5e5-4a72-4d92-8703-d33d4ef30f15.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07714d299026ca796c537c4da90948ab208a7c27b3638236ac2ff2f332e75312. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USCGJ0957157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2236e431f89bba7e9d2180ee9b934bb8aaeb21402a35cb68ad831ec446190c8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USCGJ0957159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2651319a169dcf81f3a6f1224119a4216f6b7c2ec6974f687a47ef0ad6f32a42. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/USCGJ0957161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cf9f7bb6c5fb1b534f2a30d6da6babce84a594a29df8fae410d43aeff4778c. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/USCGJ0957164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df62849d80b2d3e092ae91622d2326bd1e3abfbbdc3c8d467d84406e9e0c0a6. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USCGJ0957165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e33d5be31b82c8419255715a6ffb46e88ae7af9da592bbec79e1e2a562a95b. 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/USCGJ0957062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45397a2d0a22914dc963754e0f95739163a5f9194aa4ae486da980e49b44446. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/USCGJ0957063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c307c66af70bce2e675560858c0cf890d9f8c1f6cd6f3b1c884509b602f2e99. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USCGJ0957069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2420d3df61acaa1c020d0eb5529b0320b171d2d290dd8e331c17b3361f3a31c9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USCGJ0957070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1287f4f1eb386ea1a6493ae88f368a8d089f3cd39ab127cb757fd403b5227def. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/USCGJ0957381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b6120e8a520b3b9f1ba4ad8f9e9968966b98ae5478a79589cebd8caf4a0512. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/US2NE1500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1744547f5a6aad0293a2499159b65ade8c072ab8bd0c9aac17f92c76d58094ea. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US2NE0900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a5bb1b3e28ba84634c9112fa0aef5ddc98b8b9e81245a037af32343433f9a0. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/US2NE0900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b858d9e452858a3d8dd3ceeb92c4cd9a33037ab3e3a7ab65952afdf077fac69. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/US2NE0900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8ca6718bb49ccc172df15da4c3196eec5e7f8ea9ca99b5fc43d0251ed89748. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US2NE0900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44cdcb5cf43bce0de962209a09d86b83f5bf83d26afc9a644e7671f189a60e4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/US2NE0900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144aebf7b74382e59604a3de252d98cce0f89623b6c0fe7d30a5418c2f6bd27b. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/US2NE0900040.
Teddy Bear Turn Around / Two Little Black Birds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7131a6274010bd173adfbb2f3a80fde7bc04871615cf21a00df4adbe11d227. 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/US2NE0900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cb2c3c09693b8a061ff66e97da838909eab30a67f0870b1d32a21dddd7a311. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/US2NE1300012.