thumb Heinrich Kaminski (4 July 1886 - 21 June 1946) was a German composer. Life Kaminski was born in Tiengen in the Schwarzwald, the son of an Old Catholic priest of Jewish parentage. After a shor
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 0x9bf8e2916b299a703b96123282aa575c7baf9ca26c798fd3351d09c91fa95688. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6a7e1a3-4564-466a-8660-a726710a6cc1.json and https://artists.proofprofile.net/proofs/artist/f6a7e1a3-4564-466a-8660-a726710a6cc1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x73d819263b52d770076fa0e5d90c3dc401be4244875ec296b6cf00811729c7e1. 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/DES382345006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610285fcf382b2b1bd570451ce0deae43330020c34ffdb676bc1a3160edec60d. 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/DES382345008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57dd9c3ed30650b83863e21acf77dadb524cc820acc2348163a0cd8812ceb25. 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/DES380004701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410afc60278c3ee6931d449194df18e7524843277998c7b33c75be31447648bd. 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/DEB111302908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3857e4309a1ad53ba8c5ebf7dfed7dfd049b2ed952a8fd65d4265a220ba91d4b. 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/DEB111302902.
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
O Du Fröhliche! (Die schönsten deutschen Weihnachtslieder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04aa493bb63b729c321f141b2e383dcbaaba3c8f529a854aadedd9a9ef43e46. 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/DES380002157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1936593b5b2559f1411749beff47fa4d555a1bcab25175bbe71e270be0ee2946. 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/DES380022345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1d37df18fa60f7036729aa0c8e8cd1e66c6fb787c6680d97c3ce2699961aaa. 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/DES380536020.
Ottorino Respighi: Lauda per la Natività del Signore
Denn er hat seinen Engeln befohlen uber dir, "Psalm 91"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa8b32379554f6316b834e048555af1429b151c9b007ccf4e6ab32462f3a535. 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/DEA550010764.
Deutsche Messe, D. 872: Zum Sanctus: Heilig, heilig ist der Herr
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d4d0bba4ca6396c36abe1974ca394e459475e6dab4d7e8b6709051783f255d. 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/DEA550010768.
Geistliche Chormusik, Op. 11: No. 12, Also hat Gott die Welt geliebt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be489dcf890a84878fb5676acb2f955ef03f0ec82666200f8f54793a470f333. 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/DES380020176.
Stimmige Fest und Zeit-Andachten: Sei willkommen, Jesulein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e90403bd68f2e96888be4c545505eb3ce8bb102bd7b874eacaa1a21bfcc94c. 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/DES380908011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceb773d67b2239b67c5889bd0d4688cdc7da582bca32bab76c4d2895ff4d13d. 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/DES380507021.
Ihr Kinderlein kommet (Der Dresdner Kreuzchor singt die schönsten Weihnachtslieder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c8010f9a27eef8ab368ce5ef54710175878052611f1ee17d8cf5c528bdb43e. 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/DES380507002.
Judas Maccabäus, HWV 63: Tochter Zion, freue dich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c9e70146b078deb13305507ea9d1b8d5f22b6d9d5bc60e35b1a72f0c051dca. 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/DES380507008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04ca21968af4967c4808fba12922e09aeb1092931dcb9ceb3534a92cc162526. 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/DES380507014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9897be67b567baedc93585bce9166d6542ba355ba65cb19a731ad040afc9211. 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/DES380507019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceb773d67b2239b67c5889bd0d4688cdc7da582bca32bab76c4d2895ff4d13d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DES380507021.
Kreuzchorvespern (Geistliche Musik in der Zeit der Trauer und Zuversicht)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f6d5548e0124d5d2bc4c3e8a037427d53fdc50135280011e80f0e4b42d4dbd. 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/DES380020340.
Vom Himmel hoch - Weltstars wünschen Frohe Weihnachten
Stille Nacht - Ein Festliches Weihnachtskonzert
Es Ist Ein Ros' Entsprungen (Choir and Organ Christmas Music)
In the bleak midwinter - Winter Classics
In the Bleak Midwinter - Arr. by Mack Wilberg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eb72450a60bf49c11d403c1199115b4231ef2b42abb03aae3119b1ce659b4b. 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/DEN961001550.
Ave Maria, "Ellens Gesang III", D839 - Excerpt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecd6229d3aa72ede1f21e84308dd6fff390b93b686597aa697edc2909c8bb7c. 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/DEF057602883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb19aa69590d2159ffaa8ca68ef179b2d4446e5785e99c412655c22e8bd208c4. 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/DEN960533113.
In The Bleak Midwinter (Arr. Amy Crankshaw for Solo Cello and Strings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bd1bc6561cbf7f84cdb1427d1ff89c78e9a9c582aa6313b6e460d422925532. 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/DEN962302460.
Trio Sonata for 2 Violins and Continuo in G Minor, HWV 393 "Dresden" No. 2: III. Largo (Arr. for Oboe, Violin, Harpsichord and Orchestra by Andreas Tarkmann)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934beeeabb07ed311242ebabc5b319c5fbc4f943e3bda497f0ce47a42097bbd5. 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/DEUM70602307.
Psalm 130: Aus der Tiefe reufe ich, Herr, zu Dir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a12639f62f4b17875383a2c5f6cb6f4ba9bbc48ff3b9267f7292ba639b908a. 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/DEU920560801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fc6671c7fd0c5d5861b4e5b4b1b098cba4807b540787d341a454611b1e909c. 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/DEU920560802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf288adafd906fb96e2e0c63d9fdecbe2805d9325218a3ee21e4c449b7daf05bb. 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/DEU920560803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0658aed80ff0a2c7bf121254392d0b19a9433afb5276b4cbbdb70a5715189c2b. 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/DEU920560806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5724d9f964754c9ab7c8edc9497ab333e6860b6a900705f525b7ce95feeb8c2. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEU920560804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c98dc77733a2d815be4249bc4893e80a4105d8c0b49e502c16f03bd2c2ac17e. 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/DEA550104851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614e29a1fdf8c7a53af40eb0c30203f8f75f8abff3702c71e34f759ff2a8c040. 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/DEA550104853.
Silent Night - The Most Beautiful Christmas Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a17ca83092a82194f632bbeb82dab5efbf3203c2b3a0a76206e4e3ccca649c. 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/USUM70979330.
Es ist ein Ros entsprungen - Weihnachtliche Chormusik
Jugendkonzertchor der Chorakademie Dortmund
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c43e33d45a35005bffbf60e10643f468d736ad4a5a5ea7b82e6f2bf94bee341. 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/DEAD61604302.
7 Magnificat Antiphons: No. 6, O König aller Völker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15ae8608fe4a32054ada0b7e1bc78a4d69a4586f210ed835ebcfe4b093b56f3. 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/HKI191522920.
7 Magnificat Antiphons: No. 7, O Immanuel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8362211e5a2e97d7d54b3d937fbef4f4365dbf62d891e17847420c5bbaf1877c. 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/HKI191522921.
Eine kleine Weihnachtsmusik (Eloquence Junior)
Alle Lande, jubelt Gott - geistliche Musik für Chor und Orgel
Seid nüchtern und Wachet (Choral music from the Twentieth Century)