thumb|A Kasperle puppet Kasperle, Kasper, or Kasperl (different spellings in German variants and dialects; ) is a traditional puppet character from Austria, German-speaking Switzerland and Germany. I
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6679ec0fbceaa04ddfa80b5d697f8dfba3f7fd072da88b15cbab6dba4454ca8d. 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/64486eb0-f189-4d86-83b6-52f7ec1cc975.json and https://artists.proofprofile.net/proofs/artist/64486eb0-f189-4d86-83b6-52f7ec1cc975.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kasperletheater, Nr. 2 (Der Teufel Lauspelz und die arme Pilzfrau / Die beiden Räuber Jockel und Tockel)
Der Teufel Lauspelz und die arme Pilzfrau: Szene 1
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb062f1aa4ef68b3ab8166e4fe460ae20d086b160d3227508d88c1d2b8fad57ff. 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/CH0042300626.
Der Teufel Lauspelz und die arme Pilzfrau: Szene 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc528f08184a8e791e31440e47f27002572926d64234921182f2a2780bf510f0. 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/CH0042300627.
Kasperletheater, Nr. 1 (Das Hexengärtchen / Der verzauberte Spiegelsee)
Das Hexengärtchen: Tra-Tra-Trallalla, der Kasperle ist da!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a38020884fcd8432e2065f964aff27be3e4099bda3a4fa2fd54d280740cc93. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/CH0041702070.
Das Hexengärtchen: Grüss dich Kasper! Wie geht's?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56c871bc13211d839baee3c6e93a8b2ae835f7aa7421f86cfeac3bf40797acf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH0041702071.
Das Hexengärtchen: Du Michel, warum singst du eigentlich so laut?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d7fde8b15d9de01235e601ec50a70d89413c2de721590c8ba0024ec9fe7c7f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH0041702072.
Das Hexengärtchen: Halt! Halt! Da schnarcht doch jemand!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1975d43c7d562f852d0a08f568c2e75efd8ad0de12bd4cbc06df1808cb7d7588. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CH0041702073.
Das Hexengärtchen: Was ist denn los? Wo bin ich?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3fcd32ee7297a3d899b87feb8524ac539ca348729272877e95cb54ee03d69e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/CH0041702074.
Das Hexengärtchen: Schneckenmaxe! Schneckenmaxe!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28de8cb81a8bbe0cdf062f08e16b673f63c304b9d7c436d6d140b538375dc4c5. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/CH0041702075.
Das Hexengärtchen: Der Michel, der arme Kerl liegt immer noch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edfd66481f177feb853fdb5301fe8041dda5eb0eb0820eb4504e421e6be8b85. 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/CH0041702076.
Das Hexengärtchen: Geschieht dir recht, du böse Hexe!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c4cf4e8b4f956ecf59ac997855c6a1723ba4571eea991a713c95da319274c8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CH0041702077.
Der verzauberte Spiegelsee: Tra-Tra-Trallalla, servus! Servelatwurst!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01784afd10f0e1608b9ad22dd5667f3c4a0c9b10f7af30c80ab85853cd23b459. 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/CH0041702078.
Der verzauberte Spiegelsee: Der See ist verzaubert!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fd36c7ebaa788d97f9b674915311b89ce0b187cde00a0edf5ebe801866fa98. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/CH0041702079.
Der verzauberte Spiegelsee: Bla-Bla, he, Bla-Bla!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac1cfa31a1c1a3811e84d1f0a3fb233eb369ee1bf0d2b4c5a37053da1a84e74. 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/CH0041702080.
Der verzauberte Spiegelsee: Potz Holzapfel und Zipfelmütze, wo steckt sie nur?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8283a103b9dec5365d021c0f6bd87bb1dc82c9f4579030b7d42f9b79a4cc5864. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/CH0041702081.
Der verzauberte Spiegelsee: Ich bin Prinzessin Silberhaar!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e60d32feea2e5263b3c8a3665d09e9350f7daf128fbe3d2786692462c8267ec. 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/CH0041702082.
Der verzauberte Spiegelsee: Schon schwimmt das dumme Ding!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e0fc6546a7c4a7e6065f9d7e51911e1bf02e4580595a7afe170ddd70228bcb. 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/CH0041702083.
Der verzauberte Spiegelsee: Hier steht er, der Knurrunkulus!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d29ff6bd385a6d7548a432bfa8269de6631b2d3efd0f43009c75ccb66b756f3. 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/CH0041702084.
Der verzauberte Spiegelsee: Zaubern lernen? Du? Kasper?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6ebb685ba4c818544f8a909cef8a5ef92e312b1e06871f4d26075fba07d82b. 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/CH0041702085.
Der verzauberte Spiegelsee: Silberfisch! Silberfisch! Komm! Bi-bi-bi-bi!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc6745cb270f05a790aedb0abdbbf4842bfb98081da3bd3013795cd40aaea01. 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/CH0041702086.