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 0x57ddd0528c5b2515fa03c84f741c24387ddf345fcbde0ac5786f47d225c55c3a. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0cdf1810-d6e8-4eb6-a99c-c74b2a984d90.json and https://artists.proofprofile.net/proofs/artist/0cdf1810-d6e8-4eb6-a99c-c74b2a984d90.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Immortal Voices of German Radio: Walter Ludwig – Tausend Rote Rosen Blüh'n (Recorded 1932-1936) [Remastered 2017]
Schlager und Filmmelodien von Walter Jurmann, Vol. 2 (Recordings 1929-1936)
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 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.
Glamourwelt Berlin, Vol. 1: Berliner Operette mit ihrem größten Stimmen (Berlin Operetta From the Weimarer Republik to the Second World War) (1927-1941)
Es gibt nur ein Berlin … Die Lieder von Willi Kollo in Originalaufnahmen (1927-1946)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57461019723e70b05a174c2d4fa93ac0a17c0421abd9ea9ae2a934f30f2db9f9. 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/DEL111301212.
Zwei in einer grossen Stadt: Zwei in einer grossen Stadt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1e24f2ea55f16304874f12da191da70af4180eeaf92eb784705d4616986514. 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/DEL111301216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71ffa90c53ac13bf7e101a758dfacc98a7a02347238d2bbcd9cfc3d8a98921d. 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/DEL111301218.
Chronik deutscher Filmmusik - History of German Film Music, Vol. 2: Melodie der Liebe (1931-1933)
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.
History of German Film Music, Vol. 4: Es leuchten die Sterne (The stars are gleaming) (1937-1938)
Der Mann, der Sherlock Holmes war: Jawohl, meine Herr'n
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490a16040915321378f345f80c27a44ad0d304218a317823764f740411ee3edb. 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/DEL111200140.
Karneval Anno Dazumal: Jeck em Wirtschaftswunder (Remastered 2017)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf38f7fb8766a6556b662ed67eb5ebffa96b44aedb7b158bea2a7729e53d490. 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/DEU921706801.
Weill, K.: Songs (Lenya, Weill) (1928-1944)
Weill: Die Dreigroschenoper - Aufstieg und Fall der Stadt Mahagonny - Songs (1928-1944)
Die Dreigroschenoper (The Threepenny Opera): Act II: Ballade uber die Frage, "Wovon lebt der Mensch"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b35730a24593da64e43e31602828d5e72be585c08308073ffd9efebcb3753f. 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/USB8U1519684.
Weill: The Threepenny Opera - 6 Songs - Und was bekam des Soldaten Weib - Wie lange noch?(1928-1944)
The Golden Age of Light Music: Light Music from the Silver Screen
Early one Morning (featured in Spring in Park Lane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1938aecb2e191257d89c2251f4e24e1c3790fb54d2af9f4a75e63684a3ffac1f. 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/CH6630450901.
Dancing in the Dark (Soundtrack-recording from the Band Wagon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b69a86f7525617929f2ee32e30ea5a641c04f2ded02bb548b58900d0518b6. 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/CH6630450903.
Vintage Hollywood Classics, Vol. 3: Annie Get Your Gun - Easter Parade - The Pirate - Show Boat & Others (Original Stars, Original Soundtracks)
Annie Get Your Gun: You Can't Get a Man with a Gun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695518ba29a44de00e4078574b5231c3ce0cde60610ef18bbd3e089efd6a7c37. 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/DEL111301892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ea03a85dbf7e9ffa27e4f970d3abf6ce665d3a8031cce7ac830c7b0b0e09e4. 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/DEL111301894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825e40e4d4b623695bd80c5b9b2b941e525edd60c5759445df743ceba2529a78. 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/DEL111301896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefbc630d9915551399ecd38bb86fe7bdccacf2fd63747481082a6f0cc0520a8. 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/DEL111301897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fc723a3205a822b45733c3acbf37b4489745737852ac86d11ffbdfd8bdcf0a. 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/DEL111301899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44320c546b4b9a61c1c3f0df813c9740147b45ca8fb88d5a29fea4fecf065f3f. 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/DEL111301900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbc6e17d02f94f21474da69c1b58dd36e88410aa4f4762f07ad0a35660fc79b. 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/DEL111301906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ec6a83186451a34a3f1ce842561f821c834c0f588df8f47b7d04c2e1806d44. 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/DEL111301909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa275ddb9936c8ba03773743e04bd9164421196b255e26f164a1e1925daf2cbc0. 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/DEL111301912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd9d0a5addabacc7f201f6c7e4c4ba95e285ee4ac7117360f02d8e2966a3dce. 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/DEL111301914.
Das mach Ich alles nur mit einem netten Lächeln! (Remastered 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60823b91c1dc5dc1a0406377e9cecd8a9e1393c2bf8d447ea217c74262481980. 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/UKMUY1710372.
6 Romances, Op. 6: VI. Nur wer die Sehnsucht kennt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a8eb1644bec1caff4fed70b0b0b154835d424b2f88b627c899fa846a7f705d. 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/FRZ141022100.
Sapphos Gesänge, Op. 6: No. 3, Hört mich, ihr grausamen Götter!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dcb4a0b20971e1dd701852cfcec31159e89e7f7627e53e6f319ab30282a81c. 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/DEDS51828103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f813f25e3c4f2eaf4789554cbdd1c3dfce38309977e3440bb295993f6da42a. 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/DEDS51828116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9ddde83dbeed7205f605692fdde11ea730aa3fe6006ba5c5b5c106c38eb447. 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/DEDS51828121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028fcd4572a675592ba8ec458043c2b4b79642e7309fd112d0ba8ea13a07c577. 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/NLB030905093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711694a391897c9e861e014f14d152fc3cf277e23bb85bc4d7faa1e397ba1561. 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/NLB031300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9632be04ab5499b44d5bf68ff3a37151a2a96f584b1b8e7106732e31bc303817. 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/NLB030900558.
Clytus Gottwald: Hymnus an das Leben. Transkriptionen für gemischten Chor a cappella
Dichterliebe, Op. 48: I. Im wunderschönen Monat Mai (Transcr. Gottwald for Vocal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd165293ac335d27ce96ff9ac188bb6ef03ca9c2318313e6438cf3aa92093cfc4. 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/DEB111207001.
5 Lieder und Gesänge, Op. 127: II. Dein Angesicht (Transcr. Gottwald for Vocal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61155f71e0a45a352b5a31e68c2a9f4b71eb0ed3606e34555ce049e1a49cc0c6. 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/DEB111207003.
The Very Best of Dutch Indo Rock, Vol. 5
The Caswell Collection, Vol. 8 (1924-1940)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b4fff8a4b82ab37a86b81acaae84a2adacca1cae4675b95f6fdf13349dd66a. 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/USTYQ1000301.
De Nederlandse Volksmuziek Parade Vol. 2