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 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 0x27b56db018da94ad1de74f6db37bb1e4398c41837d03a9b08e4663b58ece15ca. 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/4440023d-ff12-4f14-bd8b-aa40ee0523f1.json and https://artists.proofprofile.net/proofs/artist/4440023d-ff12-4f14-bd8b-aa40ee0523f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Das Sühnopfer des neuen Bundes, Pt. 1: No. 1, Wo find' ich ihn, der meiner Augen Licht
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 0x65c8d1edad1b85867e0393cc5dbe93e886455543e7ab24abe5d1dc8f44c3901a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEU921909601.
Das Sühnopfer des neuen Bundes, Pt. 1: No. 2, Gegrüsst sei, Fürst des Lebens
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2783ab1cdb35c8fe6b8d4d9d650309a9207bc41aa2f4cb4c2ce0ad535d0b6253. 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/DEU921909602.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 29, Hört den Simon von Kyrene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9204032993a96b64a2398d06d50e3d713782feb4a40c98086f72f21bcd5ce832. 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/DEU921909629.
Das Sühnopfer des neuen Bundes, Pt. 1: No. 3, Da nun Jesus war zu Bethanien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c38e8c027d52859bb4b6b59b91dac8442b1f83957edd42af283f975ef82e843. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEU921909603.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 30, Fließen, ihr unaufhaltsamen Tränen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d106051c425c68452d19ca6b923a934c66db682c23a56ab33a3865a53e46959. 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/DEU921909630.
Das Sühnopfer des neuen Bundes, Pt. 1: No. 6, O du Zuflucht der Elenden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1616d26487e296e810fc28efb8ccdd5f6c7399890f323caa63f44d14a5b9b797. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEU921909606.
Das Sühnopfer des neuen Bundes, Pt. 1: No. 7, Larghetto con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94e57e8e91c87238834041bfbc9c41f905ace9755a5ea57a1acf05405c04ab8. 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/DEU921909607.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 35, Der du den Tempel Gottes zerbrichst
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0e0007234e132997f8af444b8962a692a2dd06e40e6d59ac9da35973174467. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEU921909635.
Das Sühnopfer des neuen Bundes, Pt. 1: No. 9, Lobet ihr Knechte des Herrn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a591d2ae65f3e65ee357c79799b6ccb3e204d9676eee8d0b3d21f238dd8507d. 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/DEU921909609.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 36, Vater vergib ihnen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83605dd3feaae68a9653495fac7b48da95d2d60a300b451deb1a28f56189ce09. 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/DEU921909636.
Das Sühnopfer des neuen Bundes, Pt. 1: No. 10, Mich hat herzlich verlanget
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef89f6c5db91bf8d7f9801e4e2d6851771c52574d88b673514a6fb3dfee6250. 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/DEU921909610.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 37, Seht die Mutter bang und klagend
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e73bb35d38a8094075651e4da686c481f9be9e6580b07b5e793579d4e873bd6. 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/DEU921909637.
Das Sühnopfer des neuen Bundes, Pt. 1: No. 11, Da sie aber assen, nahm Jesus das Brot
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297f17e426747ce7710c8c802f4a351fd2eea966b2f92195438009e0d44fd8ba. 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/DEU921909611.
Das Sühnopfer des neuen Bundes, Pt. 1: No. 12, Lobet ihr Knechte des Herrn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3983ffd4d2a1c086c06141e14197321deb5b20c90031d52e3ef6b9e060f170. 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/DEU921909612.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 40, Sein Auge, das mich angeblickt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4e4851089400f268e68c0769a866295ac5f11d1b061ce4c1e1157073c0e26a. 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/DEU921909640.
Das Sühnopfer des neuen Bundes, Pt. 2: No. 14, Wenn alle untreu werden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2656766c1ea0a5741589bff41cbcc9d2c7362074d4cceec7fde00235a40e574. 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/DEU921909614.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 41, Darnach, als Jesus wusste - Großer Friedefürst
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa498fa0513f42dfca8db89fcd19501b1184c945e9970cca576879bb8a26f15fd. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEU921909641.
Das Sühnopfer des neuen Bundes, Pt. 2: No. 15, Heil'ge Nacht, hell von der Liebe Schein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe57ebaf44237530f748be1c5a08404db764c27f6598a388985c1727597a7741. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEU921909615.
Das Sühnopfer des neuen Bundes, Pt. 2: No. 16, Da traten herzu zween falsche Zeugen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6a531be366c04b59d2d429e661b90548321f5b9dca526fc8db48779ea868be. 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/DEU921909616.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 43, Des Tempels Vorhang ist zerrissen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a7689cd56f54a87beab5e7c98f3b415f959112ebf11a96e8fbb4f24a3824f0. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T16:50:13Z), 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/DEU921909643.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 44, Mein eigen Grab will ich ihm weihen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433a8213441d0fbb4eca280821cbeaf2d4a86e792d04d9b35df12fc6e495bd30. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:25:30Z), 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/DEU921909644.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 45, Einst lagst du auch gehüllt in weisse Linnen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24738235be6adfda3a09528930bb3c7bb31159b0f8c8bef06867448cfc12afaa. 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/DEU921909645.
Das Sühnopfer des neuen Bundes, Pt. 3: No. 46, Es wird gesäet verweslich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515ea77b03021715c4288948a4c25f4b98f3f44bbb834cada8c54be3cca8370f. 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/DEU921909646.
Das Sühnopfer des neuen Bundes, Pt. 2: No. 21, Pilatus ging hinein in das Richthaus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974e87add63a49482545a831ae368b021318bb2963d81c1d5cdb7366cb6b66dd. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:07:55Z), 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/DEU921909621.
Das Sühnopfer des neuen Bundes, Pt. 2: No. 23, Ihr Kinder Israels, ich finde keine Schuld
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4674ca7e9f824cc997455b451fc0735c84eb429d04270f758d3dd005b256232a. 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/DEU921909623.
Das Sühnopfer des neuen Bundes, Pt. 2: No. 24, Lass ihn kreuzigen - Nun denn, ich bin unschuldig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a1407382272b594398fb5041fcce08a48c889073533b641fdd7d7e5fa61a0c. 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/DEU921909624.
Das Sühnopfer des neuen Bundes, Pt. 2: No. 25, Sein Blut komme über uns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8149ed0ac4838fb11b915c29c598986df94f8ae22b8644f6282f0c8b0b8dd9d6. 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/DEU921909625.
Das Sühnopfer des neuen Bundes, Pt. 2: No. 26, Ach seht, der allen wohlgethan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a740c6db61f8fa1704db84397a76213033d49a2ebb8a275901aebff0be145b. 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/DEU921909626.
Das Sühnopfer des neuen Bundes, Pt. 2: No. 27, Sehet, ich führe ihn heraus zu euch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c39ce049d16b912ccc16448fb59c583582b4cb1538d21b8d8a59c5cbc7d519e. 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/DEU921909627.
Mayr, R.I.: Confitebor Tibi / Psalms / Motets