Mädchenkantorei Domkirche St. Eberhard, Stuttgart
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1dcf89457c233b7526b366ab0e56e79a728bce99f6d3f66b7d480a9f26675cad. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25e1b073-b87a-406b-8204-1e28a9be9b9b.json and https://artists.proofprofile.net/proofs/artist/25e1b073-b87a-406b-8204-1e28a9be9b9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gloria in D Major, RV 589: III. Laudamus te
Messa per coro a due voci bianche e organo
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 → block OTSBitcoinBlock must exist at that height 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 0x87a8a87494f6826c2eced70ad8facc5423515c9f2b3fab45575a4bb28f9a7d72. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEB111501407.
Biblical Songs, Op. 99: No. 4, Der Herr ist mein Hirte
Peter Schindler und der Hoppel Hoppel Rhythm Club
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbbae50d6cfbcc5873be85809370b0eefa4c785ad44002d74e48b3220dedc23. 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/DEB111104005.
Evang. Kinderkantorei Stuttgart-Vaihingen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace89e802a275120fee6f0f554dec82173e921da518540a7086f846b361f9409. 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/DEB111104017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53af4bfb674e5816b4d36ac2f21d291f1ef6e7a5caf2c285d6c9638dddb137f4. 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/DEB111104018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e848630a4faea47b9ae26659bb4b1a99e3a08e542f320c427fcc01b6c15489. 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/DEB111104022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe211b6f25b86c3332b56ef31d5202b333cd057dc59ea0dffa0fe309b2645c15a. 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/DEB111104023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071a803c3b0d83e7b5d4b0f6469c05ba9b38e81c30355c1da2246ec9125f9252. 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/DEB111104028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6aee91c32f33c87a24fc3482ead7049f3c6474707bb625f953c7147b7c1262. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEB111103801.
SingsalaSing, Kinderchor der Landesakademie, Ochsenhausen
SingsalaSing, Ensemble der Landesakademie, Ochsenhausen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f27a6fabaa5b732e265ddf52a737e70685e33a64226e5ff2364e1577c134f1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEB111103802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad8d91ddb002ce29be6fd2e691a14508b2ad689044e69a63894562d7879cbf5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEB111103806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeac53a976545450bcaea631da158a1a737a79454e944c58331e4d41f2214f9f. 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/DEB111103807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63a94447413451904f813fddf38b6aee47e108894d77c7dba3b2511909732f7. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEB111103810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80785d9ad76c6eacda93212841b48dade65eed5c520261939566f91a399de225. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEB111103812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07951d4e8aeb1dab006bc3fd2c06252c29fa8679bd760242a0aa19afd3468182. 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/DEB111103820.
Grün, grün, grün sind alle meine Kleider
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89f017e3363fe76478ce37f82ef85ec85aca068d84b2bc22a8612b0e34c9484. 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/DEB111103829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f505f6a82b12929dd0e173f2a981c28d4c75ce9a897164d1821bfec889766c5. 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/DEB111103830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd9cae47e28360749cb3eb77f034121bdf681ec062e002708aa404a5fdb3e97. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/DEB111103834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fff2c7e4fdd9e6e81ee49f6bd553d2cd4df2bc304427c41399d43f882995887. 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/DEB111103835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad2f7572e8942f3bd70ed7c158bf7f3e1ad842d9bcbf48e618d9ee8e4bd5b27. 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/DEB111103910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0551b86f53c12bbf92d568a90f26922e0f9755d8439dfb23c00c946b3afd2c. 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/DEB111103912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d62f34ab19318fc104f36d1ca5f354dd288d625a7ce728ea81925ce2e5cb16c. 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/DEB111103917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca45fff935033222157ad7e65f5aeefb5e0dc69fd02c238fe9cf15de5da53c8. 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/DEB111103926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70028ad01afe8ccde2523622f56f4057e0c2db12d1c2d94ae8984bda554b06c2. 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/DEB111103927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5947807f8d385daef848c446a12c3d2eb6971b720774956c3c24412f8f81ee. 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/DEB111103930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01990fcd7f0487242e9962ee0e9e6864ed88e40c931702bcafadcd556aac5242. 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/DEB111103933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cc61c8bcd17f26bf4038756332872030a7ba20270d22b9ddca59825effe2ed. 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/DEB112000702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f810f06f3fa859206117e206bcc6395f3f14e1e404b9520fe21bea55c88250. 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/DEGB91400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eb25928a365fdd26115684ac1eaba6637a66caffe47286912cbeaf2ed1d4c9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEB112000704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071d0820b2efa8d109d0fca56bfea4b3cd7697a3c7fadfaf0ceee82718e05ef4. 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/DEB112000705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf367b51ba72abefaf4e32af3582f62b781ec80823ad6318385c8937be8eeb5d4. 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/DEN422002012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fdee670e2c4efef703c66b684dc27324f18b3d9cd461c3ef5b35b5ab0c07e2. 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/DEB112000706.
Herbei, o ihr Gläub'gen / Adeste fideles
Entre le boeuf (Arr. Gunther Martin Göttsche)
Vokalensemble des Otto-Hahn-Gymnasiums Nagold
Morgen, Kinder, wird's was geben. Ein musikalischer Adventskalender
Weihnacht, Weihnacht – Markt und Straßen
Traditional: Noël nouvelet (Arr. Roques for Choir)
Weihnacht. Nun liegt das Kind im Schlummer
Unterstufenchor des Wieland-Gymnasiums Biberach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1024c6c1d26b5ec5112186a941d3d83478b9bf6ca97ded2d4cd21e44cca2a78f. 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/DEVI42402002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe60af55761a24ae7f39c9c4d197610380f2feb451ed9374d0db29f82117eea0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEVI42402006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf311cebde467fc6d40eca7e7108a7819be2e6f02bb302a4850c04969efe9e062. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEVI42402009.