The Philharmonischer Chor München (Munich Philharmonic Choir), is a choir founded in 1895 by Franz Kaim in the German city of Munich. Conducted since 1996 by Andreas Herrmann, its repertoire spans a r
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 0xcd7d8ee26afeaf90b18d0c310dcf7cd8bcae06b3827a82eba7553ab077fb6096. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5297eb40-8546-45eb-aebf-3d05df863068.json and https://artists.proofprofile.net/proofs/artist/5297eb40-8546-45eb-aebf-3d05df863068.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
Caroline Maria Petrig/Christel Borchers/Peter Straka/Mathias Hölle/Philharmonischer Chor München/Münchner Philharmoniker/Sergiù Celibidache
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 0xc61c33c1f87bfd075cdfe8e56f19ce9bbfa50254dc1a80f3b378586e80be4078. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAYC0401597.
Mozart: Requiem in D Minor, K. 626: III. Dies irae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45f5dd1293e4c11b76103b40faadb0f7de9e6bc66d40bdcb0e73bdc20e3831b. 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/GBAYC0401592.
Mozart: Requiem in D Minor, K. 626: I. Introitus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae0460c6cb01517f8e7f6d40c5a9ddb2462369918000cd080269dd18857e723. 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/GBAYC0401589.
Mozart: Requiem in D Minor, K. 626: II. Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d11cfe960d0b2968d5786b9bea47c49673176e49369f74051042e1188e88b64. 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/GBAYC0401590.
Mozart: Requiem in D Minor, K. 626: V. Rex tremendae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f29c9d24456da281c3c37ed1c75b4255f21140e4a5cec8e8141f7892327fb0. 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/GBAYC0401594.
Mozart: Requiem in D Minor, K. 626: VII. Confutatis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f517701771950a4e64b8394f0d493149a0fc00c85d493baf793c4b1b4f15f0f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBAYC0401596.
Mozart: Requiem in D Minor, K. 626: VI. Recordare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed7dc5f4784e7efc834005078d0af22cd4a39e1117aa688f2c8c76340959116. 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/GBAYC0401595.
Bruckner: Te Deum, WAB 45: I. Te Deum laudamus (Live at Lukaskirche, Munich, 1982)
Bruckner: Symphonies Nos. 3 - 9, Te Deum & Mass No. 3 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9f755342d45756a0ada86345bde94d5d4a627242f58593f2be68c166026ef4. 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/GBAYC9400148.
Mozart: Requiem in D Minor, K. 626: IX. Domine Jesu Christe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5f2119e1ff40b0db93c9ec07c5d6de2e38f78fb75eed644a4d66c70a33a613. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/GBAYC0401599.
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
Mozart: Requiem in D Minor, K. 626: X. Hostias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69660bf526822529380c0495ca1677437b20b838a05201a93a710fbd45ec3f4. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/GBAYC0401600.
Mozart: Requiem in D Minor, K. 626: XI. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965c51a0542c19d6cc618c92415307f70e6276715f2cd674a8f67f33423ccbda. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/GBAYC0401601.
Mozart: Requiem in D Minor, K. 626: XII. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bad6f847e28f0ce7af20283629d406242a72a3dd4751a6f3774c8ee43848a4c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAYC0401602.
Mozart: Requiem in D Minor, K. 626: XIII. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8b40a3907927db5cf8267846cb46a4d727e1c11d2381ed6618e43944510ec8. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/GBAYC0401603.
Mozart: Requiem in D Minor, K. 626: XIV. Communio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b86ba855720185b80d575d022dc63ee2d2737ad2ea47af7446fda6031f8e1b. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/GBAYC0401604.