Christian Rathgeber is a German classical tenor with a focus on concerts. He made many recordings, both as a soloist as a member of vocal ensembles and choirs. Life and career Rathgeber was born in
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 0x969fe946535af4b2fbeed756be9c8004edfc1ffb59ae1587915b97b05b799e1f. Chain 2 (Bitcoin): anchored in block 954002 (2026-06-16T20:47:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31bd6ee7-9cf5-4da1-befa-9fba9b002599.json and https://artists.proofprofile.net/proofs/artist/31bd6ee7-9cf5-4da1-befa-9fba9b002599.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ach Gott, wie manches Herzeleid, BWV 3: II. Wie schwerlich läßt sich Fleisch und Blut (Rezitativ und Choral [Sopran, Alt, Tenor, Bass; Chor]) - Live
Bachkantate, BWV 3 - Ach Gott, wie manches Herzeleid
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 0x38ad9305cede09d49c9dc4ea2280e7ee512d9984665a0bdcccf6b40674936678. Chain 2 (Bitcoin): anchored in block 957013 (2026-07-07T08:31:11Z), 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/CH9212200002.
Ach Gott, wie manches Herzeleid, BWV 3: IV. Es mag mir Leib und Geist verschmachten (Rezitativ [Tenor]) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668fb07b5978b8b681e226c138841b48e63ffda187405eaf829a7bef0888874c. 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/CH9212200004.
Charles Gounod: Cäcilienmesse (Messe solennelle en l'honneur de Sainte-Cécile)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cc860bdd2c29d525873f7147490eeb5bc91ad6933be0d6b85114b44a273644. 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/DEN421923001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d97af4aa159c4d5c198e8dd154ddf95de4c25f45bda927af407e99e410513a. 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/DEN421923005.
Cäcilienmesse (Messe solennelle de Sainte Cécile) G-Dur: Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8f915af18481477485b56309244a9dfa4114bf7794997291239ec172bbb67a. 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/DEN421923006.
Cäcilienmesse (Messe solennelle de Sainte Cécile) G-Dur: Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb90052a769fb4edba57947f4c552eb5d2b60e65d4b38b38aaf6b0871fbc379. 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/DEN421923007.
Cäcilienmesse (Messe solennelle de Sainte Cécile) G-Dur: Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af3f50ea4ca94b5a40afb92418afeaac5c7ae8828ac92160d68e37d396d011a. 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/DEN421923011.
Matthäus-Passion, BWV 244 / Pt. 2: No. 33, Und wiewohl viel falsche Zeugen herzutraten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e9b1c8d87ec5d7e47bdc420fd4a2f8a22e60d4819ab513a76a45e5589f95af. 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/DEB111600304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbffeb94a77068bed6262b0fd074a584f8e9a1bba2cc4b7e5922aba2eae01b1. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEN421923002.
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 0xe3194e42da386f5ab9cf88569d6703a1ce99e40d2925c404950e102a751aa6b2. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEN421923003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20e24d1b306280dd13b78fda110a614251edc93d18386e3637ee228972b1cae. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/DEN421923004.
Cäcilienmesse (Messe solennelle de Sainte Cécile) G-Dur: Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5ff04b0551fa37dfd0c8cf8168148c0b26063687a157a808ed8369cd22622e. 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/DEN421923008.
Cäcilienmesse (Messe solennelle de Sainte Cécile) G-Dur: Offertorium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d88703ad09d163f6384bc46ecaea46588200b0a8b3c7cda2b76f70cc23cd63. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEN421923009.
Cäcilienmesse (Messe solennelle de Sainte Cécile) G-Dur: Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5356609821385720b7497bd71bce0ac7e5ea295c6ff6bc5cfcbb74b43472e4d0. 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/DEN421923010.
Cäcilienmesse (Messe solennelle de Sainte Cécile) G-Dur: Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67dba4ec2ff1acfae7934aa7ec00bc295a44db9707254fed147ad2122d0cea5. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DEN421923012.
Cäcilienmesse (Messe solennelle de Sainte Cécile) G-Dur: Domine salvum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b90cb2ed3909a47b66fca4dd745bd94cb6e79ac22a7e8b5abbfc20b041cccb. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/DEN421923013.