Georg Poplutz is a German tenor, a soloist in Baroque music, opera and oratorio, and a Lied singer. He has been a member of vocal ensembles such as Johann Rosenmüller Ensemble and Cantus Cölln, and ha
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 0x3f57b0361dbd40413140bd124b4c56f91192d53d7f639e461be3e6c0bd5e918a. 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/4b33925d-3be9-4677-b311-7db6a005595e.json and https://artists.proofprofile.net/proofs/artist/4b33925d-3be9-4677-b311-7db6a005595e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Claudio Monteverdi: Vespro della Beata Vergine (Marienvesper)
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 0x574e68b47f5a09db482f8b4250239d761e52e71b84ec2e68a8eaeee31ad3634c. 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/DEN421113001.
Wolf: Passionsoratorium "Jesu, deine Passion will ich jetzt bedenken"
Geistliche Chormusik, Op. 11: No. 13, O lieber Herre Gott, wecke uns auf, SWV 381
Heinrich Schütz: Geistliche Chor-Music 1648 (Complete Recording Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712e5fa28915c7cffde1f5422c5ad36c679ae24e98eaf60248140119f979adf4. 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/DEB110702113.
Osterdialog, SWV 443 "Weib, was weinest du"
Schütz: Complete Recording, Vol. 20 — Psalmen & Friedensmusiken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55210405863eba6b3a8b8df8f53d6033122f8e558687fc8bf3684cb970b37a05. 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/DEB111903708.
Psalmen Davids, Op. 2: No. 2, Warum toben die Heiden, SWV 23 "Psalm 2"
Heinrich Schütz: Psalmen Davids (Complete Recording Vol. 8)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45380f694a1c554cd5254b1eb8fc35256f26ad848726967fc51a78db62f4f3b. 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/DEB111301602.
Psalmen Davids, Op. 2: No. 6, Herr, unser Herrscher, SWV 27 "Psalm 8"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244718e1f76d13517c36c87eeaef360255bd7429504cdd441409ffd2176200fc. 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/DEB111301606.
Schütz: Weihnachtshistorie (Complete Recording Vol. 10)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab70147e5404b27eec0611833cdfa45d83af48d08a253b581107ec78ef468b93. 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/DEB111404502.
Psalmen Davids, Op. 2: No. 4, Aus der Tiefe rufe ich, SWV 25 "Psalm 130"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5adb3bf370e7be766e7ab32c27e573a8af7d72dc26c438cd0513b93cb72330. 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/DEB111301604.
Psalmen Davids, Op. 2: No. 5, Ich freu mich des, das mir geredet ist, SWV 26 "Psalm 122"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f44dc2ee8819f738018403bb37d82b09f893fefce1c36993dbad533fcd4a51. 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/DEB111301605.
Geistliche Chormusik, Op. 11: No. 16, Ein Kind ist uns geboren, SWV 384
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97fda7574e4c4fb09333ed37c617ca3f3e5664baf48edbe9c332ac56efbb66c. 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/DEB110702116.
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 0x8fa19296470cb1ee014f5e4d28ed3263496dbf050d58ea2c4d42ef46a045ac41. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEB111404501.
Psalmen Davids, Op. 2: No. 1, Der Herr sprach zu meinem Herren, SWV 22 "Psalm 110"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb30e54ee959a1ba91e55e221000263db5f0f8636e30806d6d752e485cf02fb. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/DEB111301601.
Psalmen Davids, Op. 2: No. 8, Wie lieblich sind deine Wohnungen, SWV 29 "Psalm 84"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5352e965758f7bf70e1b10454c075deeb2ef4b7607b39ac56b1c20632e002b7b. 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/DEB111301608.
Psalmen Davids, Op. 2: No. 17, Alleluja! Lobet den Herren, SWV 38 "Psalm 150"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffab217256b0927943907d4a3a388cb51bd3239caee5644291960f755b5b893e. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEB111301704.
Psalmen Davids, Op. 2: No. 18, Lobe den Herren, meine Seele, SWV 39 "Pslam 103"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12193b44d0771200360e45732d3271c36499d09f7cd3d45ddcd603f2308bcd84. 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/DEB111301705.
Psalmen Davids, Op. 2: No. 24, Danket dem Herren, denn er ist freundlich, SWV 45 "Psalm 136"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18fdf5398ee40440d07ddce16d5c1699b72ffc53f982af32cea85691cdbd9e7. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEB111301711.
Weihnachtshistorie, SWV 435: II. Die Geburt Jesu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24ee1ffd61ea48d61f38421601be7c3f81b563ccc78ebf231b973f40d1e7ee4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111404507.
Weihnachtshistorie, SWV 435: V. Die Hirten auf dem Felde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f0a82de87552377f1d30a357727a9a1f61a01bb78ebeff23278dc0f5ba7a8d. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/DEB111404510.
Psalmen Davids, Op. 2: No. 3, Ach, Herr, straf mich nicht, SWV 24 "Psalm 6"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa0783a4e22442ca83ac36b7a43a31141ee9ed004a6d2f2760b22d773660fcc. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEB111301603.