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 0xcc084d5403c6e5e9a715b9e86fbf1222c505c86d3d365fb689bb54bb6395c927. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60bc5f4a-0c95-4758-b678-1ea8fc79afff.json and https://artists.proofprofile.net/proofs/artist/60bc5f4a-0c95-4758-b678-1ea8fc79afff.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Moppi und Möhre - Abenteuer im Meerschweinchenhotel
Kapitel 10.2 - Bitte nicht öffnen 4: Feurig!
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 0x879b5ac8f0dab930b66e8b0e12ecfb8ac605c02f326bd4d875932e8e7c33d6e1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136191 — a six-check JSON result.
Kapitel 2.2 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a43d8073bd6f4879f1e85a7f7862b1c427b98a62667d64a8a38e8f87899f46. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136182 — a six-check JSON result.
Kapitel 13.2 & Kapitel 14.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d3462e18e74125f9ee8356277aa56ad4eab4dc69bd7934d4cb6a474d73a93c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136196 — a six-check JSON result.
Kapitel 4.3 & Kapitel 5.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08a24ad03f71b4e9c5e7674b32fd524523fbfceb3b2a966b9f95ef91104f0f3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136186 — a six-check JSON result.
Kapitel 3.2 & Kapitel 4.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74627a860a7d60ae7acf3de3955fea779a5a0e8e7b05fb856a66f205c4024df4. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136184 — a six-check JSON result.
Kapitel 2.3 & Kapitel 3.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0a0bf56d37adbe396fb838b10defcd83b6ec5459089f8bbc7333457e7e6023. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136183 — a six-check JSON result.
Kapitel 10.3 & Kapitel 11.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4f11e094f1125f12995fad6bc3d1958dda56d30dbe6efe556652ccf09805d8. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136192 — a six-check JSON result.
Kapitel 15.2 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23a72ec9b0b2b1f595a70e42a55939f1cfa4b0d33f079a63817372f84fc252f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136198 — a six-check JSON result.
Kapitel 8.2 & Kapitel 9.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf78a15851d0c4d5ada94f8219651e60e9c46b5b49f1d13bc38370e8c56fdcc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136189 — a six-check JSON result.
Kapitel 9.2 & Kapitel 10.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589019c41874d5e5893552081ba963286e26df0aafe5ef77621e50d8434d1a80. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136190 — a six-check JSON result.
Kapitel 4.2 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ea9a97fc93afe617915687f341cdb669ed023598f0756b9650a65c40f59db8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136185 — a six-check JSON result.
Kapitel 15.3 & Kapitel 16.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01ff6ee6cc0a9790077759654a132f6623737083b64ffcd7097aaad9f6a5e5e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136199 — a six-check JSON result.
Kapitel 6.2 & Kapitel 7 & Kapitel 8.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255b1884c5eb843405bc85d6297eb0f62dd0587c6313d65923f22489f0a786b8. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136188 — a six-check JSON result.
Kapitel 12.2 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78185c0ed376fe550dbb17f5d99f35129bfd6664b88eb4430abb42143f3f152. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136194 — a six-check JSON result.
Kapitel 20.2 & Kapitel 21.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6041054c121ac42773f7b5bcb4963ab8c5a7b0d7331539a668d3b0a68c98657a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136204 — a six-check JSON result.
Kapitel 11.2 & Kapitel 12.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318ce91780c4b851faff879107cb6b6fbe1c6ba9069235f398b2a4ec70ef7c2c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136193 — a six-check JSON result.
Kapitel 22.2 & Kapitel 23.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a2a5ef6a29613ab2465d335642ba068f9cf6e62b7a60a9222ed48d1ffc31af. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136206 — a six-check JSON result.
Kapitel 1 & Kapitel 2.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0920362f9a836850d3694a9944580ba741dbed34bb63a11a293b8e16f372e89. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136181 — a six-check JSON result.
Kapitel 5.2 & Kapitel 6.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f90f628aaff3e6eedb16c852d8faa3e09e9d3aa2e3fdffe318499e5277e6787. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136187 — a six-check JSON result.
Kapitel 28.3 & Kapitel 29.1 - Bitte nicht öffnen 4: Feurig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e605309e2f09fb261275ef80c17c6f7498d1aeef0f5f1e337a81a592a2baa6d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP81136214 — a six-check JSON result.