Gösta Winbergh (30 December 1943 – 18 March 2002) was a Swedish tenor. Early life Winbergh was born in Stockholm. There was no musical tradition in Winbergh's family. He himself was a building engine
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 0x20bfc2acde116fe31085a6acbcd4985d616f66b6a2d85a8da843ba0ca70b969e. 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/5ddb2add-9a10-462b-a606-1a2ca1c6ec0e.json and https://artists.proofprofile.net/proofs/artist/5ddb2add-9a10-462b-a606-1a2ca1c6ec0e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Wagner: Die Meistersinger von Nürnberg (Live)
Don Giovanni, K. 527, Act I: No. 2a, Ma qual mai s'offre, o Dei
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 0xcae74ebd44a9d95ae41c78d71b568ba96cf1d1ab59ee21a74261fa34cee20f4b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530421 — a six-check JSON result.
Don Giovanni, K. 527, Act I: No. 2b, Fuggi, crudele, fuggi!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff5f6532d3cb430a88a41dfce1c53f3814f35224896093a5e1f933cffa5cc9d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530422 — a six-check JSON result.
Don Giovanni, K. 527, Act I: No. 9, Non ti fidar, o misera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d3f8784cd28609307a0fb40c05ad4a0ad284e4fd4c154938955ddabd5c57cc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530433 — a six-check JSON result.
Don Giovanni, K. 527, Act I: Recit. Mi par ch'oggi il demonio si diverta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7631c89e0d6dcc3005b595a7d7275782794947206d534f4c9a93242fc011d338. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530431 — a six-check JSON result.
Don Giovanni, K. 527, Act I: Dalla sua pace, K. 540a (Vienna Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a07758850f13fc7290f3fbaa4b397468beaec2938e21c9a89d76d5038ed331a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530407 — a six-check JSON result.
Don Giovanni, K. 527, Act I: No. 10a, Don Ottavio, son morta!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aae1e99d8f9cf51ad36605dd4aba2a8941769534194ab75f9264070fbbc1ddb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530435 — a six-check JSON result.
Don Giovanni, K. 527, Act I: No. 13, Finale: f-j. Riposate, vezzose ragazze... Trema, o scellerato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ce6c685b0aa968d5d59da18d01e52b341eebf8e85d7fdfef48f8d9a488ab61. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530444 — a six-check JSON result.
Don Giovanni, K. 527, Act I: Recit. Come mai creder deggio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb6f59cf2f6c1cdecdf5d4f0997391840b2dde18fd6fa4398d93c8711566b31. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530436 — a six-check JSON result.
Don Giovanni, K. 527, Act I: No. 13, Finale: d-e. Bisogna aver coraggio – Protegga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e40eb65d710c65ef974dd6e0e8afb9cc7d0081886275a4e9afc7241f6f8a15. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530443 — a six-check JSON result.
Don Giovanni, K. 527, Act II: No. 19, Sola, sola in buio loco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976945d0150d151708f4e67d100634bb5e7d7fe4b433aded2c3ba8528d16b580. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058530454 — a six-check JSON result.
L'elisir d'amore / Act 1: "Chiedi all'aura lusinghiera"
Orchestra del Maggio Musicale Fiorentino
Barbara Bonney - The Radiant Voice of Barbara Bonney
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cd4d799686f481f0f240d705ae83a972a92d5e08ee2eb343357d4f785f1086. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630923 — a six-check JSON result.
Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 1: Wunder der Natur (1756-1765)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd0664db01e71764b7d7d355a6d08d929fb6af5f26911c4e56761ab1acacd20. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELW71490601 — a six-check JSON result.
L'elisir d'amore / Act 1: "Quanto è bella"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57222091e248ee0d6808d2c1e08013ec53fb9c35e834fce8fb7f5f229f2b4a50. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630903 — a six-check JSON result.
L'elisir d'amore / Act 1: "Benedette queste carte!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc75fcdf9c273d768aca2ae5ea4868db55f53663b16e48f940156ae50d51866. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630904 — a six-check JSON result.
L'elisir d'amore / Act 1: "Come Paride vezzoso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca603fd93420aaef33527a69956716b222c0a2757949bb04eda00318a434f12. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630905 — a six-check JSON result.
L'elisir d'amore / Act 1: "Una parola, Adina"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f3321c3fd4d28b9cf5cdd92d79832cc4ae82a81013eea73f9072f99327611d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630906 — a six-check JSON result.