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 0x10c4cf58a9ece53789ea9d65b0dfaa7e42b9f7874b035e77ceb5267dd7cf8540. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e616fd52-366b-4dad-ac45-90310cc34918.json and https://artists.proofprofile.net/proofs/artist/e616fd52-366b-4dad-ac45-90310cc34918.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schlager und Filmmelodien von Walter Jurmann, Vol. 2 (Recordings 1929-1936)
Ich hab' bei der Trude das Kussen Studiert
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 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.
The Roaring Twenties (Die wilden Zwanziger), Vol. 2: Am schönsten sind die Mädchen, wenn sie baden geh'n (Recorded 1926-1937)
Populäre jüdische Künstler - Berlin Hamburg München 1903-1933
Schlagerperlen, Vol. 1 (Die schönsten deutschen Schlager)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659a3f92bb84e33303497c7d5e986385d59b79a68d69a553db3cc687483ccf15. 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/DEHB51304400.
Schlagerperlen, Vol. 8 (Die schönsten deutschen Schlager)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd3ba2bc49deffe59873d9b24103e90fa6b238e91fe4298a69a6eda8c7847c0. 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/DEHB51207208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d58ab90a7cfb251304d474be40126b7ba5ddf50d037f62168f6f3bffefa2a1. 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/DEHB51206530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18338ad064bc14e90f3b6f5d8c298f1fb206ad6b69499198fd4befd5bbd02180. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DEHB51206504.
Berlin Swings, Vol. 10 (Die goldene ära deutscher tanzorchester)
Schlager Music from the German Cinema, Vol. 5
In dich hab' ich mich verliebt (Walter Jurmann - Tanzmusik vergangener Jahre)
Mein Fräulein, kennen Sie schon meinen Rhythmus?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c13123e760e091828daf793f5b0f657fcb01e138bfab70317e80e1c872259d6. 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/DEE720600310.
The Roaring Twenties - Die Goldenen Zwanziger, Vol. 7: Ein nettes kleines Fräulein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc610daad747c122272493327c8c2e5083af99022a5efd5d589d9d6e89fc78139. 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/DEBL61040950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07d9f472f0880902719632ae4d6f2aa08eb3127f8f016137c6e9c56738926ad. 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/DEBL61040951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa7fc725ebacfeba8adcaf46c157aba06b85adf13e1e729ec875676efadb085. 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/DEBL61040958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7cdf43fbdbf73d2791b1f17a2a45d0fb590fa90ab7498f87baae1300cf1b4f. 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/DEBL61040959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdaf9b7c51f7d927a8e741973a860fbbc05f857c9e38c60874da872c201ea71. 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/DEBL61040961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f66455d4bdacb526f3d831382621d9f41c49ce3630941bd0c1806528f1fea1f. 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/DEBL61040962.
Ich hab das Fraeulein Helen baden sehn - 1925
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa609a6ed7e3e26b9af5005b1abc9f9dc9fbaeb40cf0becd18c0c788dd33041ec. 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/DEBL61040964.
Was machst du mit dem Knie lieber Hans - 1925
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d40f1b05f3bceee9f0ec1f30640c1eae65a32d8a670b831338d78bae67a20e5. 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/DEBL61040965.
Schwule Lieder - Perlen Der Kleinkunst (2)
Die schönsten deutschen Tonfilmschlager von 1929 bis 1937, Vol. 4
Veronika, der Lenz ist da - die schönsten Schlager der 20er & 30er Jahre
Pump mir dein Gesicht, ich will die Großmama erschrecken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db7be5d4d15bbfd0f6faa2bff4483cf14e58951370c005af152a6bcb5add3c0. 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/DER751648408.
Wer hat bloß den Käse zum Bahnhof gerollt?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aeda50bfa8fca1338b1e34768507bba412e261424f187f2c88d9944ded7f6bd. 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/DER751648439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9af877cf8709dd3b2d5d92b3ef4cc84f7d410a85a21c246609536767553971. 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/DER751648448.
Goldene Schlager Der 30er The Finest Selection Of
Wenn Die Elisabeth Nicht So Schöne Beine Hätt'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabea63f0b90a4e7ea09e4472b19af6b4452dc5b624006bc05beb8ce97aeba4b6. 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/DEA319801789.
Kabarett der Weimarer Republik: Siegfried Arno (Recorded 1929-1931)
Mein Mädel hat den Weltrekord im Küssen aufgestellt (My Sweetheart Set the Worldrecord in Kissing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3ce2dcbefaf2b7dc09f523017abb7ecf78954d0895c5e076f745ace7149695. 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/DEMB31130205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130f6bb139a855949dbe2a96e30563904ba96ff072ed5be5eeec8f98750daf85. 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/DEMB31130206.
Wenn die Elisabeth nicht so schöne Beine hätt'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8436ba69de35310780e0f692c3ccbb1ae558058e40f98476881249a7b58e2b6e. 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/DEMB31130220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77fb244d908464369ca2de31f795fa50017b7368f0ef50a6c0a0598c768e281. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEMB31130207.
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
Wissen sie, daß ungarisch sehr schwer ist?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a66bdab74c962e89e6294ad8554e2bd78c473aec40186ec1d0ec7764a38169e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEMB31130217.
Du bist für mich das Pünktchen auf dem ''i''
Dein Ist Mein Ganzes Herz - 2004 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a23e61b373a8c80e408ee719748a9825c46911f4b1c4704dece55e3c825f60. 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/DEA340400602.
Heut' War Ich Bei Frieda - 2004 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ec187a956e166b92a899b9ee0f83889c35cb5cfe32799b9fb9e032c4eb7beb. 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/DEA340400604.
Ich Hab' Das Fräulein Helen Baden Seh'n - 2008 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb09fcb9464cd7145618733ffbd87a20a99c660c5df3a29294f77e471e3c1b5. 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/DEA340800561.
Wenn Die Elisabeth Nicht So Schöne Beine Hätt' - 2004 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55af42b356830f497596b7519ac2c6a9963843a9c7b9eccd20640ef630b2a200. 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/DEA340400608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1afa3fc93a63965a1c4380100808a832c4a8eb8c7a396d4b4b7ff86587f12a. 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/DEA340400634.
Heut' Ist Der Schönste Tag In Meinem Leben - 2004 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c70aafaf3cf6d0a217e37f7b94531150251bcb8a9909adda64ef2d8d49498f. 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/DEA340400636.
Jawohl, Meine Herr'n - 2004 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bda66bfc9a0185d0d10721ec451b4f523f9223a4ac21223bd7941bb90b0ffa. 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/DEA340400645.
Nur Nicht Aus Liebe Weinen - 2004 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d344539cf8ceca3fd81a85e3b84d41a31ef8f9a0b0e53c5ac4593824f9b25b. 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/DEA340400660.
The Roaring Twenties (Die wilden Zwanziger), Vol. 5: Ich bin die Marie von der Haller-Revue (Recorded 1926-1932)
Schwule Lieder (2) - Perlen Der Kleinkunst
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27194f911070182fa1cd46d5523099e6e37bde7c72c45fbd5e2ecf95879a3657. 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/US2Y30708235.
Verklungenes Berlin - Originalaufnahmen von 1906-1941
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047f17f8e22320a5afef42a0078e98ff682bdbe9640289aae57a02a3a28c6ade. 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/DEBL61042044.
Ich wollt ich wär' ein Huhn - Tonfilmschlager, Vol.4
Die Schönsten Tonfilm Schlager (9 Of 16)
Mein Bruder macht im Tonfilm die Geräusche (Aufnahmen von 1925-1942)
Die Goldene Zeit Der Deutschen Schlager- Und Filmmusik Vol. 2 (4 Of 20)