Andrés Orozco-Estrada (born 14 December 1977) is a Colombian violinist and conductor, with dual nationality in Colombia and Austria. He is principal conductor of the RAI National Symphony Orchestra,
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 0x6dc092f4dd4e33c7af9abd8a69e008387dd840dcc2d6652a763aefdf837e4a28. 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/f6d6e6ce-5570-4a6b-89f2-d1b81c517e65.json and https://artists.proofprofile.net/proofs/artist/f6d6e6ce-5570-4a6b-89f2-d1b81c517e65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Festliches Adventskonzert 2016 aus der Dresdner Frauenkirche
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 0xc7a0b77a1045aab82c2614c055f3ef09c4ae8e02fd220663303f33939ebdfbc4. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/DEE861701355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb81ae5ac22f171affcbf1c6729c384c9b8f21753aefc02a24b2ae2f933e4949. 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/DEE861701356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b3674ec02204ad9be5cccd790190bf0cf4558224abe1ef8365dd998740be2b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEE861701358.
Violin Concerto in A Minor, Op. 53, B. 108: I. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de007851006efb7c23a00b3a1cc158c90ead85e7347663fc533b3349a675f78. 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/DEN962200181.
Violin Concerto in A Minor, Op. 53, B. 108: II. Adagio ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8e4a4a0ddbf352c7f60d6ceafdbf3b02582f1f3484c5a1ad3851359b6def7d. 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/DEN962200182.
Violin Concerto in A Minor, Op. 53, B. 108: III. Finale. Allegro giocoso, ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ab9615030955a1887829d118a2ac4a5662d51c5f80cb96886005e1bb6223a1. 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/DEN962200183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8174af98906d90efe9948e0334e69ee3168124ceec403ee87bdafcdf70c750. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEN962230901.
Violin Concerto, Op. 30: Ie. Studio IV - Per l’arpeggiato. Lo stesso tempo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9edbf3b6cadd66666640a171393995241882638db47c41fbe819a547efb6cc. 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/DEN962230905.
Violin Concerto, Op. 30: If. Studio V - Per gli armonici. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c519ab9126593e8c8b1783da93a90bf86a179647972c11389743a2fab40c1d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEN962230906.
Violin Concerto, Op. 30: Ig. Studio VI - Per i 24 quarti di tono. Larghissimo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd752d12c74bf6b94b86fe02a3aa0d08611f6e29a6278095fb8e45e9b1a9e03. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEN962230907.
Carmen Fantasy, Op. 25: Introduction. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd754deb8487c5ec6e4731ea03020086b54f9a496a354ccd5b269da81797492e2. 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/DEN962200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb72047c2d9e98e084d8fb16cc3160880229d1fa767539f71b90608e2fea7a98. 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/DEN962200192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d484456f5c9c6c63c0a22978089adae1b0117d5136dd6f3b7c29b0e9f72d0b. 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/DEN962200193.
Carmen Fantasy, Op. 25: III. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598f1929474dc49a244442a7334e4aa9a3fc2ffee3af5f8149caf9710f48620a. 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/DEN962200194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ee5d2b8eeb10dccfc652a38e163acd69f7ba51bb0bffbc58815c8eed05e819. 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/DEN962200195.
Violin Concerto, Op. 30: Ib. Studio I - Per gli accordi. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841a8b87d676189ad0f4e006c1e4a292e6594d19b8c70425ef64d8452b032f64. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/DEN962230902.
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
Violin Concerto, Op. 30: Ic. Studio II - Per le terze. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3ec9b7f70fdbd542866a7b1464cf207d7ab343228fd2bce5814e9e06a4294f. 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/DEN962230903.
Violin Concerto, Op. 30: Id. Studio III - Per gli altri intervalli. Lo stesso tempo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6947624372560dddf5c37a5008c2665a0fe6b4a1d590fc8972d6109ebd615049. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEN962230904.
Violin Concerto, Op. 30: Ih. Coda. Maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3bf9d5be12f94e4b31880d70e3af40475d4fc9d397fbd8d74341f262191f97. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/DEN962230908.
Violin Concerto, Op. 30: II. Adagio per 22 solisti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004faa6b0f799da689a30a029ed52f0f7cd8a710ccd2a3e511dda3cfa08f9104. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEN962230909.
Violin Concerto, Op. 30: IIIa. Scherzo pianissimo. Sempre volante, misterioso e appena sensibile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f04a7b82d7f3a07a7a0c261a055a21e2262da7b9d16d5007072a00b2ff074b. 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/DEN962230910.
Violin Concerto, Op. 30: IIIb. Perpetuum mobile. Agitato ed allucinante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5390e2fe4ee9aae7d045f6ca2f085352c6fff87cd72e17d460e896b51c01f7d. 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/DEN962230911.