{"copyright_id":"0x59c1c9ff4888dc30be6bd36e4832e3eead008df2787cee05f1ab3e407e1607f9","name":"Marek Weber Orchestra","registered_at":"2026-06-16T21:15:23Z","symbol":"NIM1177804","token_address":"0x37fea3bf860b567aafce0a495d82b2feead6edbb","type":"artist","uuid":"5aeee68e-e67c-47fa-a460-9802b124cfca"}
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 0x59c1c9ff4888dc30be6bd36e4832e3eead008df2787cee05f1ab3e407e1607f9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5aeee68e-e67c-47fa-a460-9802b124cfca.json and https://artists.proofprofile.net/proofs/artist/5aeee68e-e67c-47fa-a460-9802b124cfca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schlager und Filmmelodien von Walter Jurmann, Vol. 2 (Recordings 1929-1936)
Schlager und Filmmelodien von Walter Jurmann, Vol. 1 (Recordings 1930-1938)
Hirsekorn greift ein: Ohne Worte lass uns scheiden
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 0xf6b63c7ce08d0dfc727422f51cff45e92bde73f4e82b9087340d3f03866e6da5. 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/DEL111200698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e5fc8d3777979c98ac01e316bdb33d0b253df577ee77164fc429f1520c7103. 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/DEAD61607802.
Nur nicht aus Liebe weinen (From "Es war eine Rauschende Ballnacht")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d673476c32185059fbd174ca77770951a115f1aa5d451b65bf00fec0d28c3d6. 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/DEAD61607803.
Wochenend und Sonnenschein (From "Chasing Rainbows")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c40471f08e0149c270a69534b8ae706adb019ea21273dd4dda0a1e15af27ea0. 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/DEAD60904150.
Ich bin von Kopf bis Fuss (From "Der blaue Engel")
Friedrich Hollander Jazz Symphony Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6759601e20195ee353a13755ed65e36b386e3735b9c148467fdd25ef495fa7e8. 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/DEAD60904163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93197ccb868b65a9fe381f4357eb0d438c1149adab67e4bb3b5ccc745809b59. 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/DEAD61607825.
Im Prater blüh'n wieder die Bäume, Op. 247, RSWV 166
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20acd328ac0b40f558b4a2cd8106aa1c5af308b274d524e19e3bcf5795473f99. 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/DEAD61607806.
Viktoria und ihr Husar: Reich mir zum Abschied noch einmal die Hände (Sung in German)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecd39a2ac13d761042652d03473543daf0375945c2d2247f9a06d5a198ed662. 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/DEAD61607828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844fd24c07fd2affbcb8579433a89998b71fa284b9a6a9cb5530d34bf8be57d9. 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/DEAD61607809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29de7afc95b9ef781535577f80a90b38c9f9a8e2a64283ca1eded32339a05554. 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/DEAD61607829.
Fahr mich in die Ferne, Du blonder Matrose
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4ff183cab717fbd8f01a5cb598ac32baeffc3892e2fd978bc1673d0b7483e4. 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/DEAD61607832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d9822e877de8b410c72c65a2f4a840db11a989667fd4f367aabcc0870823a4. 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/DEAD61607813.
Regentropfen, die an Dein Fenster klopfe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69d63fbfa3d7adf854187a78c8e246b9b62cacabff913d18c1405e2668ec728. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEAD61607833.
Ich hab' bei der Trude das Kussen Studiert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637d542fbf371973300ddd1b39785fd13111b85bf161188f97a5b2a2521affd3. 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/QM6MZ1700777.
Chronik deutscher Filmmusik - History of German Film Music, Vol. 2: Melodie der Liebe (1931-1933)
The Golden Age of Light Music: The 1930s Vol. 2 - In Town Tonight
Schellack Schätze: Treasures on 78 RPM from Berlin, Europe and the World, Vol. 17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13b295c759b030d9b562b347fec8a7b86f40d7fef8b4f8cbcf30c0e598599f4. 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/DEL111801444.
The Roaring Twenties (Die wilden Zwanziger), Vol. 2: Am schönsten sind die Mädchen, wenn sie baden geh'n (Recorded 1926-1937)
Vocal Music - Spolianski, Nelson, Benatzky, Heymann & Hollaender
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb316603997b15c9f8a71be91855b7553c15feb62496174f4f886949d01c64312. 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/DES380019262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286ce6fc73be0dd12844ab9a2a928dc5f875719f5068e67cb46812e2f4ebaf08. 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/DES380019261.
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
The Golden Age of Light Music: The 1930s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9406781a920aebc876626c0bd15a71dc023913ecdd117b4ca30d09e82640dbea. 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/CH6630450606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dda1be6664996ebee347769486694b46fdfd1fe627db36e661fe73160015f3. 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/USV291348905.
Weill: The Threepenny Opera - 6 Songs - Und was bekam des Soldaten Weib - Wie lange noch?(1928-1944)
The Golden Age of Light Music: More Gems from the 1930s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2637fb98fb92168bc01153851da1358182023183db390707582a127104752153. 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/CH6631552501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1445ce0a86443c681df0504e10a2166db5b9fa057ec753a07118738037401b0e. 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/CH6631552517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e22758887cff173f9658204ff8563277074aef37db4e0d96b8f70c56a38df9d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CH6631552520.
Schellack Schätze: Treasures on 78 RPM from Berlin, Europe and the world, Vol. 10 (2nd Revised Edition 2020)
The Golden Era of the German Dance Orchestra: Berliner Nachte, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9912a982624ec0545a93c6ec9e20b48cc3f35b11d45e41b7957301b71001b1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEL110700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7215bb33b72812e364873a90608a3d15c1d1b5ea4e90a7bac559d3e3a235ee. 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/DES380019331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a7784ce86f65a9e753243c933cf26eb3f6b4a773302189dd5ac1d20e7896f8. 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/DES380019351.
Hit-Parade of German Orchestras of the 1920s and 30s: If Spring Came Again
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b27f250b592f7e18e9c331d5f6109a93356cffbe007da9fb9de733b4685035. 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/CZH401103573.
The Golden Era of the German Orchestra: Marek Weber Orchestra (1926-1932)
Legendiniai mažosios scenos artistai. XX a. 3–4 deš. Kaunas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e5f5ab92939f757bfd82cad0db128774f7757bad8ee2e807fb15286534b4a9. 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/LTA740900008.
Paskutinis Sekmadienis (The Last Sunday)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c11824192c523a37381c7474014ec2af91726fda5b68331beb6a26c57285fa1. 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/LTA740900033.
Su Armonika Į Braziliją (To Brazil With Harmonica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766abce52c234260e19d5e549189d11271df767250ad900aeb6a40920e837666. 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/LTA740900013.
Onyte, Einam Su Manim Pašokti (Little Annie, Come Dance With Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcca9b5b46f86ee0c5b82029616c92b7ee922b8f0dbdb1ec0a0ed6d28fed4683. 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/LTA740900017.
Weill, K.: Songs (Lenya, Weill) (1928-1944)
Weill: Die Dreigroschenoper (Recorded 1928-1931)
Die Besten Schlager der Goldenen 20er & 30er Jahre, Vol. 8
Valses de Johann Strauss II (Mono Version)