thumb|alt=black and white photograph of head of young man with white skin and dark hair|Driscoll in 1962 Loren Driscoll (April 14, 1928 – April 8, 2008) was an American tenor who had an active interna
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 0xab3ea01234efc1c3861b3209fa00c01b34cb13875ffdedc4d79d0c3f2cfff7a2. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f204ba9d-21ff-42bb-a833-8a1ddf74db43.json and https://artists.proofprofile.net/proofs/artist/f204ba9d-21ff-42bb-a833-8a1ddf74db43.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wozzeck, Op. 7 / Act 3: Verwandlung - Orchester-Überleitung
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 0x4aa21ce09911d7489aa2703da406745ca9ba408b22ab0fa2bd67f7cd0b19a452. 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/DEF056531324.
Wozzeck, Op. 7 / Act 3: Tanzt Alle; tanzt nur zu...!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace205d4e4e8db5b228f22fe6d7258d08c93cdf81b20d57939bbbd091c7f5670. 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/DEF056531325.
Wozzeck, Op. 7 / Act 1: "Du, der Platz ist verflucht!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe83a514c957208d3cf5291ae23393889977b11a273be3b807cf67b6a0072b1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEF056531306.
Stravinsky conducts Stravinsky - The Ballets
Petrushka: Tableau 1, The Crowds - Revised Version, 1947
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdacc1bd37446337b0731129bcb70a3996cf4c8612abbedf4490b65ff5d041ec. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16001202.
Petrushka: Tableau 1, The Charlatan's Booth - Revised Version, 1947
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c240ba82c005217baf8704e671030b817b964762e87e539cd8b3561821d66fb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16001203.
L'Oiseau de feu: Danse de l'Oiseau de feu - 1910 version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010550d8bbd47055520d5480942ce295ca11c8c02a285bdb14772d33cd45b117. 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/USSM16101284.
Petrushka: Tableau 2, Petrushka's Room - Revised Version, 1947
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fb95b46b829d31520935bf0052879916b1ed83bd98435fe4a56703bd2bcac5. 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/USSM16001205.
L'Oiseau de feu: Supplication de l'Oiseau de feu - 1910 version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5712714c063ffa70e50dc26bcaf10a1fc3cf4ad9d21cf830e1244192a47f032b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16101286.
L'Oiseau de feu: Brusque apparition d'Ivan Tsarévitch - 1910 version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca337e5fa180092e2397994782422eafa79f9725745057f76c581978ee6ee4f6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16101289.
L'Oiseau de feu: Khorovod: Ronde des princesses - 1910 version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc287a1fa75a696cef530d715893d1233dbe721a93a257b1e1581ccb98f53a38. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16101290.
Petrushka: Tableau 4, Wet Nurses' Dance - Revised Version, 1947
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b6349041301047bee9119585d72a2e93898c454d4e7e55364abc5d9bc63bfe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM16001210.
L'Oiseau de feu: Dialogue de Kachtchei avec Ivan Tsarévitch - 1910 version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1ecd4606ec90e0d645433b205fee7f93d9f02d7112ae78d3ac056bcfef553d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16101294.
L'Oiseau de feu: Apparition de l'Oiseau de feu - 1910 version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3f088f86b0660a259320cf6e24549aa3658311b013e25aa9025cdf2ccbb6b2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM16101296.
L'Oiseau de feu: Danse de la suite de Kachtchei, enchantée par l'Oiseau de feu - 1910 version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32a27b9d49713f5ce704cdd16f08a0e1420fe515ac3bfcce793d520a2100e20. 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/USSM16101297.
Le sacre du printemps: Part 1 "Adoration of the Earth", Games of the Rival Clans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9a8502b72bed757ff61b261e5b4755b47c9da0ca4878fbf0714f96bbff2bd4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16001220.
L'Oiseau de feu: Disparition du palais et des sortilèges de Kachtchei, animation des chevaliers pétrifiés, allégresse générale - 1910 version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84a27e95bcca5e91eddd41b96d882f79f026e527f3fadbe8d6f0d97ca1bc760. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16101302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2977b1b7b7888e9c13659c5ddead4b8cc69eeb6aed113a21d25be2ff05e9e4f. 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/USSM16301129.
Le sacre du printemps: Part 2 "The Sacrifice", Mystic Circles of the Young Girls
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804ad18e6213e274e41837ee811330458cbb697831cebddcc283f5194da8a47a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM16001225.
Stravinsky Conducts Stravinsky - The Classic LP Recordings
Henze: Scenes from "Elegy for Young Lovers"
Wagner: Die Meistersinger von Nürnberg - Highlights
Die Meistersinger von Nürnberg, WWV 96: Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c719cf44a4bb0b15ec6a7dcc2b2c909c797e1e64d4bf3e09174dfe2c76c93e1. 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/DEF057630601.
Die Meistersinger von Nürnberg / Act 1: "Am stillen Herd"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35efd40d15d656f987fe102bb6956ccd0daed4a174b350900136c4652f4feb06. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEF057630603.
Die Meistersinger von Nürnberg / Act I: Seid ihr nun fertig?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b1b83813c3a0cf1a8a7f2c5b94baae0ae5127f0dbb9493b9ca857b67f6d153. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEF057630614.
Die Meistersinger von Nürnberg, WWV 96 / Act II: "Was duftet doch der Flieder"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c182b5f83ecdece4bddd1efa10eacf14cf7ae6f0d03033e500758f8c55a13c. 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/DEF057630605.
Die Meistersinger von Nürnberg, WWV 96 / Act III: "Verachtet mir die Meister nicht"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b0dcc04bb015d289f9466878bdcd7675cebdea5bbb4a4daa6f0085ca58f013. 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/DEF057630612.
Die Meistersinger von Nürnberg, WWV 96 / Act III: "Ehrt eure deutschen Meister"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61c7edfcb9155c619db44a5d6683b30d8868a6a6d8242c2b752854cbdb55c53. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEF057630618.
Wagner: Die Meistersinger von Nürnberg (Metropolitan Opera)
Stravinsky: Les Noces, Renard & Rag-Time