Antoine Silverman is a New York violinist, music contractor, and music arranger. The son of folk guitarist, writer and singer Jerry Silverman, Antoine began classical violin lessons at the age of thre
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 0xcc0b4800ef89fd367323aa8ecea177bac74bcded3a2547ec1a89256b5357fe03. 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/01f493db-2c4f-444d-929c-80a836077ce5.json and https://artists.proofprofile.net/proofs/artist/01f493db-2c4f-444d-929c-80a836077ce5.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 0xe1d89fb0d436f949e2570fb35a495cfa3adbad4b2fca221a3b6b5f03ec5b3a30. 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/USB4U0851153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b905284f5a0f76a32d2faa29f3f06402b76d043bcaefd46503956bab456e5a. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USB4U0851035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a3cbc1db948e58ad63b02c81d3c27a0e421362d48fb6f0362331be21532d7c. 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/USB4U0851033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7794a852f1dabe35c64653540afe206fd56d777dafddd90adaf298f9b75fac46. 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/USB4U0851157.
She Moves On (with Jamie Saft, Brad Jones & Dan Rieser)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61de248956de5fcde4da6b1b00df727fc307f0f74d5721cc9dc27c191c36f82. 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/DEA891700182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a5733eced7530a97c3dce3e3babb5c19e195c06ba63b9c8de92dbb8c28da6b. 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/USWD10835318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe310bda485812beb71b0d77beccbb655f8d271ff86380c6b72e508f8e095f7b6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USWD10835319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8596ffa584ed8096f3d2d9025db1b1befcc6fdb44cb698e9e5e74e2a51071ffc. 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/USWD10835320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a925f9e6f2b8f3112aebfaa4b449bc7b575c65bcad6ff295a64f569a40b121. 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/USWD10835321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a8e7df452cce9c2ba663bb4669c7ab09e45a9d7c20b676d2c89a71e012b1bd. 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/USWD10835322.
Largo (from "Symphony No. 9 in E minor")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd02ebd97fb0d30129500aff2b060aa2fe4d99ce9de58c7b03a9c43bc5fa848. 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/USWD10835323.
In the Hall Of the Mountain King (from "Peer Gynt Suite No. 1")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb533ca93840e07dbea8114e0b054d7fbc548fe4587b9d85dc4e127d11d475095. 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/USWD10835324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355dd034920a101a8d8d50cd6ac8c7d6228ebd302044ca5e3a2371d7a47aea50. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USWD10835325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f2a7c09ccde805cc5635c97e546d438bfc2aab1fe5f2e385bdd487056411ac. 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/USWD10835326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8118a9a3182989f4c6fd58af504680cafc9adad6522edee6bf42487fe8aefb30. 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/USWD10835327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854059b4c746daa78096a72abe8baa41522da4b37047490b29723ecc6a21c549. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USWD10835328.
Menuet and Badinerie (from "Orchestral Suite No 2 in B minor")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987dd4875d32b94dfee7560ecdcc3f8afcf64df640533284dc2cd3c363a05c50. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USWD10835329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa251a1d93271ae099cdd327c5761284dac2f1dfe7e24524cc4262c96864c538a. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USWD10835330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c25b194454f509864805ffaae1cb72ea2833778520edee3ff5bb84f38f70953. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USWD10835331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2796bdf1e23589517d2363a7c6159e059e8abe061a91d1a35b5085abe1103348. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USWD10835332.