alt=|thumb|Guy Braunstein, 2018 Guy Braunstein (; born 1971) is an Israeli-American composer, conductor and classical violinist. Born in Tel Aviv, Israel, he began to study the violin at age seven. I
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 0xa7c89fa3212c6e462c3ee89daa60b700f76cc52382c995bb8783cea1fb595a09. 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/30b71f3e-1550-4033-a738-bdaeebadba77.json and https://artists.proofprofile.net/proofs/artist/30b71f3e-1550-4033-a738-bdaeebadba77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guy Braunstein: Abbey Road Concerto (EP)
Abbey Road concerto for Violin and Orchestra: I. Ouverture
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 0xa86bb9b744eaaed0f51d6c0b63306288299206477736e394df65d4caac699856. 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/FR50X2186901.
Abbey Road concerto for Violin and Orchestra: II. Come together
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9602bc21cebe4763ee1e2ee3c7ec1352af193813f10f824c1826649d890109de. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR50X2186902.
Abbey Road concerto for Violin and Orchestra: III. Intermezzo 1 - Oh Darling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4be0b36a627406eaf98743572cb3645db608991e4291deee2686fc836d6210a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/FR50X2186903.
Abbey Road concerto for Violin and Orchestra: V. Something
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5967c70556ac2a56084fd56c89ab8a1bdf13c702b3a527e6068761d22f4f9b1. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/FR50X2186905.
Abbey Road concerto for Violin and Orchestra: VIII. Here Comes The Sun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d088088a6cded593f30c35734726604d24fd04b6dd4b46be2989b730db4bc0. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR50X2186908.
Abbey Road concerto for Violin and Orchestra: XIII. Golden Slumbers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44dbbd6c11b5ac38183a4f67826b5402ad77d9592654d493c2426b3f723c17d. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/FR50X2186913.
Abbey Road concerto for Violin and Orchestra: XIV. Carry That Weight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832d73e97556d3f9901ab967b2d7e20a324453efb59607f4e485abe39f95410e. 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/FR50X2186914.
Abbey Road concerto for Violin and Orchestra: XV. The End
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e76460fa053e4917efa1015b6b29baad48c6dc4f8b874b6eeb2e0f6a1d0fd35. 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/FR50X2186915.
Strauss, R: Ein Heldenleben, Op. 40: I. Der Held
Strauss: Ein Heldenleben & Le bourgeois gentilhomme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe966415948d88488e269f35b4fa065de6df6cfd104e4f816055e40c07f42285. 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/GBAYC0501284.
Strauss, R: Ein Heldenleben, Op. 40: II. Des Helden Widersacher
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4166f47dc1cbfce69922dd8be3393f5460de27833cf5ffc76cbbd19d6173f886. 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/GBAYC0501285.
Strauss, R: Ein Heldenleben, Op. 40: III. Des Helden Gefährtin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b855f0430e4d15c1e7e64c330353043247266b554b54ac82eeb868e6084df3. 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/GBAYC0501286.
Strauss, R: Ein Heldenleben, Op. 40: IV. Des Helden Walstatt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b6d29f617c3a058ad927399ac1eeda4d25aad48c2f5e3c638d900ba2fc1fdc. 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/GBAYC0501287.
Strauss, R: Ein Heldenleben, Op. 40: V. Des Helden Friedenswerke
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffb40431616ca4535bf7da7f19f5bf94487a9b4720c5084be82cf3b581dffaa. 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/GBAYC0501288.
Strauss, R: Ein Heldenleben, Op. 40: VI. Des Helden Weltflucht und Vollendung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26f0c473c4e534f5d0d1afa18948b1ad0ea9b666e65d335471dac34c1bbfa77. 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/GBAYC0501289.