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 0xfc2426855496cb9c100cd6065bcf737489650bd18ec28e5660fd28898b04a052. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee132e77-c925-4b6b-a891-808b0e3b10a8.json and https://artists.proofprofile.net/proofs/artist/ee132e77-c925-4b6b-a891-808b0e3b10a8.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 0x98534324146a2d188866d59331c512aa2592c63f295d9fb3598a8b2448402eba. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEXQ91127905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d0610b238a776f76eec6add85ca9097324e58fc74640160eb0355a7c41eadd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEXQ91127906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97839d0d9bd3b367c26cd389d312e5c26b20045cbd3c2dd00c24f89e68eedc2c. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/DEXQ91127907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c246f8fa16e7ae50ce307e0556ecf7c88a0d09034c7765bb94feec9bb328d03. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DEXQ91127908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2855c1148b0387043cd1c0af8109553f80ce4a47aca30ab83eb922419494bce6. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEXQ91127909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd55ab916469fa11123816cec1b225b3273b6c5aacef26979601fa1f99ad3ad9. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEXQ91127910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7eed0420e87121bffc9f7073a397bae88ef666cbc6e7907ac444671714ada1. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DEXQ91127912.
02: Seine zweite Reise (Freddy der Esel - Ein musikalisches Hörspiel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e13b1b9078f57cde44fcc26fdc9c3356627143bcfb014d76b1cbd8fa6b3989. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DEXQ91128169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abbf2ba29d3a25814514441ccb25610135bacc592c01013d72a2f28dc60729c. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/DEXQ91128170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce97b7ca657fd781fd41a10242d9d376851142c1376bd85bf2e56c8b17bb76c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEXQ91128171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f144827aae48a74bdc68018ffd606ed1e552da3329aae6a2c2327d3dfc1ef32. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:06:47Z), 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/DEXQ91128172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34da7dab70ea9155f9ad14aebe09e8e55882657667f9f4072e520b955d624875. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:50:05Z), 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/DEXQ91128173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfb0b74bfc1006aebe9710d6c51244b19f7ed4a6fbdf04b17183ae9292f9bce. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEXQ91128174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b59da2b6fdad285ccffb29c38f752e46c71a4e96fdefa3e5e16f284a2a516bb. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/DEXQ91128176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacce2229f4964da0973ec596ae2cf8b7c99a096cb58fab37f41b0909cfbfbd1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEXQ91128178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42573c63bc8334a9048f29aeca0cc9a01979e427ceae1f41b1c71000b320b36c. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:53:11Z), 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/DEXQ91127993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25217dd34aac6dc55e59998723e647808dad709413526186048b2dfa8b18a610. 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/DEXQ91127996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cacb463bdef7c3e74fc4a3bf59d7c40a95f0111781342ef7b9ed56ae81e406. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEXQ91129370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404dcb65e4ade839758bc108664d64a12d18d41229658c46d516bd70b6fa8975. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/DEXQ91129371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b4987e127ba53dbfdc69c781c65a0b07f0159d1d4984be72374b3dc2c7cd50. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEXQ91129372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bafbf8ef6ef7debf9e584e0e2cbd95539681d507dda3f7402cceb01d4c771c5. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:43:20Z), 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/DEXQ91129373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fe5787b0075039cc5e9cb3da2f49f9dc5c9a44e06d919e9bbe7df1c32bff78. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:19:55Z), 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/DEXQ91129374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f2dc08fb4865ed177dd3c3ebf77f1f364bd523d7b31662693e92d88b136063. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:33:30Z), 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/DEXQ91129375.
07: Aufregung im großen Zelt (Freddy der Esel)
09: Freddy geht auf große Fahrt (Freddy der Esel)
12: Streit in Afrika (Freddy der Esel - Ein musikalisches Hörspiel)
11: Freddy und die Zebras (Freddy der Esel - Ein musikalisches Hörspiel)
14: Eugen in Not (Freddy der Esel - Ein musikalisches Hörspiel)
13: Die Rettungsaktion (Freddy der Esel)
17: König Eugen (Freddy der Esel - Ein musikalisches Hörspiel)
18: Der verschwundene Bruder (Freddy der Esel)
21: Krach auf dem Bauernhof (Freddy der Esel - Ein musikalisches Hörspiel)
25: Was ist bloß mit Eugen los? (Freddy der Esel - Ein musikalisches Hörspiel)
26: Freddy feiert Weihnachten (Freddy der Esel - Ein musikalisches Hörspiel)
28: Freddy als Babysitter (Freddy der Esel - Ein musikalisches Hörspiel)
30: Freddy und das kranke Pferd (Freddy der Esel - Ein musikalisches Hörspiel)
33: Eugen schreibt ein Buch (Freddy der Esel)
35: Eugens große Nummer (Freddy der Esel - Ein musikalisches Hörspiel)
34: Der Tiger und der Pfau (Freddy der Esel)
36: Lulus Wunderblume (Freddy der Esel - Ein musikalisches Hörspiel)
39: Abenteuer an der Nordsee (Freddy der Esel)
41: Tour de Gans (Freddy der Esel - Ein musikalisches Hörspiel)
40: Die Gans im Bienenstock (Freddy der Esel)
42: Operation Gänsemarsch (Freddy der Esel - Ein musikalisches Hörspiel)
44: Eugen und das verschwundene Stinktier (Ein musikalisches Hörspiel - Freddy der Esel)
43: Lulu und der rülpsende Frosch (Freddy der Esel - Ein musikalisches Hörspiel)
45: Freddy der Esel und der seltsame Gast (Freddy der Esel - Ein musikalisches Hörspiel)
47: Kriemhilds Rache (Freddy der Esel - Ein musikalisches Hörspiel)
46: Der merkwürdige Ferienbesuch (Freddy der Esel)
49: Das große Eseltreffen (Freddy der Esel)
48: Henning der Querkopf (Freddy der Esel - Ein musikalisches Hörspiel)
50: Freddy wird berühmt (Freddy der Esel - Ein musikalisches Hörspiel)
Eugens Geburtstags-Party (Freddy der Esel - Ein musikalisches Hörspiel)
51: Freddy geht zum Film (Freddy der Esel - Ein musikalisches Hörspiel)
Alles dreht sich um Lulu (Freddy der Esel - Ein musikalisches Hörspiel)
Die große Freddy-Story (Freddy der Esel - Ein musikalisches Hörspiel)
54: Kriemhild und die sieben Ferkel (Freddy der Esel - Ein musikalisches Hörspiel)
Solo für Henning (Freddy der Esel - Ein musikalisches Hörspiel)
57: Dem Stinktier auf der Spur (Freddy der Esel)
Kriemhilds großes Abenteuer (Freddy der Esel - Ein musikalisches Hörspiel)
59: Gefährliche Ferien (Freddy der Esel - Ein musikalisches Hörspiel)
Mit Sokrates auf große Fahrt (Freddy der Esel - Ein musikalisches Hörspiel)