Inge Borkh (born Ingeborg Simon, 26 May 1921 – 26 August 2018) was a German operatic dramatic soprano. She was first based in Switzerland, where she received international attention when she appeared
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 0x2c8ebf2d879bbf292a679d3ddda1ead7b0614e94a145b640fae1a5eb0e8138cc. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d31251cc-8c3a-4468-bcc9-d30b3db88b6a.json and https://artists.proofprofile.net/proofs/artist/d31251cc-8c3a-4468-bcc9-d30b3db88b6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Richard Strauss: Salome, Op. 54, TrV 215 (Bayerische Staatsoper Live)
Coro dell'Accademia Nazionale Di Santa Cecilia
Orchestra dell'Accademia Nazionale di Santa Cecilia
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 0xa678813eee909ae4d192be7dc4266d666a65371e7eb2e4119619579d236124cb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBF075540702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0865813992ccb346acb802a447c1b3859d4ad6847984b1aecc29dc107b833b35. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GBF075540706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8338b8b19f2f2a1b5d2296518cbd95fd348a339f10774381117c22fdb2f923ef. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBF075540720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea61d05f287f5213cfb8ae661f7254fdaaa95ee893179681ffb09b13c5b2ac9e. 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/GBF075540707.
Turandot / Act 3: "Tu che di gel sei cinta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28ed793925dd12adebfd2b13ddc5d93d660438d3a5bde9bbc248a00825c5103. 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/GBF075540722.
Turandot / Act 3: "Diecimile anni al nostro Imperatore"-"Padre augusto" augusto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d99022c96da09142cde18847a6195890ddebebec7559cfe00a7d566af0542c. 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/GBF075540728.
Puccini: Highlights from Madam Butterfly & Turandot
Madame Butterfly, Act 2: "Humming Chorus"
Orchestra of the Accademia di Santa Cecilia, Rome
Chorus Of The Accademia Di Santa Cecilia, Rome
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fee0c0445f21110e10a65cc0f3e8215237ce52883dc9709caffedac3421c8ee. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLGL1053945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70854899ef3c78460b2777626595502e6e946a96c05ca16de00d2c46eabc214c. 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/GBLGL1053954.
Richard Strauss: Salome, Op. 54, TrV 215
Fantaisie for Piano & Orchestra, L.73: Andante ma non troppo-Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b20767e41a1d5569c91c7990ad5d90aa417e63e4ee2cb4d515babe2048a853. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBBBA6950242.
Symphony No. 7 in A Major, Op. 92: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517b019c5187d64d573992dde42b9da58fcbb3bcbed688c2d17290ca0affebdb. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ITCC51102136.
Grosse Sänger unseres Jahrhunderts: Inge Borkh (Orfeo d'Or)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be4afbb12444f5d3bd1d3b83487a685361beb5af11619897382560b9e920ad5. 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/GBF075940108.
La Bohème / Act 2: "Quando m'en vo'" (Musetta's Waltz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7df4bd00f69765f3f7a8c17fae058e48e5ba6d219c968e320f2135df1f67437. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBF075940115.
Brahms: 15 Romanzen, Op. 33 "Magelone-Lieder"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566c07d7b7786af00e1d5db8551cd39c22372df1091fb7d25989dda62f608c16. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEF057003942.
Schoenberg: Gurre-Lieder – Janáček: Glagolitic Mass, JW III/9
Strauss: Elektra, Op. 58, TrV 223 (Live)
Strauss: Elektra, Extracts (Stereo Version)
R. Strauss, Beethoven, Weber: Opera & Concert Arias (2024 Remaster)
Inge Borkh & Ljuba Welitsch: The Decca Recitals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d9521e8e721fcf88f323e875228f473b3864980c96388f55be909f0db1e4d2. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USDPS0807457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b2a0af2af3b63bc812663833bfeafbe69c005e8a76d55564e9ee35efef0915. 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/USDPS0807472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15b8398b5a8dd3f6f40ffd88a8f5cb3588ec5272ec6b6c35fb72a192ea5a65b. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USDPS0807475.
Nessun Dorma: The Very Best of Giacomo Puccini
Madama Butterfly: Act II. - "Humming Chorus"
Orchestra del Accademia di Santa Cecilia Rome
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384a67698feb0530c56a3e6d52464b0187d0ba1b17bbb6c132a3c7809f4e2ddb. 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/GBG3H1101169.
Josef Krips: Historic Decca Recordings 1950-1958
Fritz Reiner Conducts... Chicago Symphony Orchestra (Digitally Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b6f82590ee93495b4059b74a5f23b7c1c4f7f114fe6cad29b07e8242e4059e. 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/QMFMG1409845.