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 0x2ac70314c963275863dbd4eaaf2a2c7f7818d86fb7e840475d3d648ba96c395b. 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/7eddc667-6d86-49b2-8fbd-439a75383f6e.json and https://artists.proofprofile.net/proofs/artist/7eddc667-6d86-49b2-8fbd-439a75383f6e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Sorry, aber ... [Eine Verzichtserklärung an das ständige Entschuldigen (Ungekürzte Autorinnenlesung)]
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 0x32c1ebaa9cacc0f236d2bd773240625b7adb8715314b2202765e539791cbcb46. 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/DEVU52487177 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e1f119fef40dc9326670c2402eb76f13b3d1cc7b7a129d83c6c74bfaa4b847. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/DEVU52487178 — a six-check JSON result.
Der Akt des Entschuldigens an sich, Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaad28c73b30a6047ee6f6d9a43bb0289a015df80df60909602c666e002a65e. 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/DEVU52487179 — a six-check JSON result.
Der Akt des Entschuldigens an sich, Teil 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dce75d6f779d6f628e876169affe5f16194a02eac3ad92282a43dfb156c9e3. 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/DEVU52487180 — a six-check JSON result.
Der Akt des Entschuldigens an sich, Teil 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd92de18f025d4731822d1df46813b4590a19f10367eee8cdbf04c40e9b717b. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/DEVU52487181 — a six-check JSON result.
Der Akt des Entschuldigens an sich, Teil 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691e1c68fd061a0ec08be14d2f7b18e751b1ee70757bf53be140fa98b8c93ca5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEVU52487182 — a six-check JSON result.
Der Akt des Entschuldigens an sich, Teil 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe386ab4d7caf80f06fd404b5d71fa51f0aa176eda0f66b206c1a9074e37b9af8. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/DEVU52487183 — a six-check JSON result.
Der Akt des Entschuldigens an sich, Teil 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493d8de9b6295f6f7a676122f00ead149df4254e0c82767c35ace1d20ea7cbfd. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52487184 — a six-check JSON result.
Der Akt des Entschuldigens an sich, Teil 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b65c542d443480787dc1a063876949d5e475cc3bb79a4234f3ac0ac0b476bf2. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52487185 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df54f3f55b44dcc747f4a3c5351bdeb8a981e9652b47839402c83a05defe848. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEVU52487186 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeef62f6dc38c9ce515c56e144cd72187df9ea08fbe8bc83cd73ea84c8deb467. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/DEVU52487187 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9868791666fa4d0b4db38d4bc5e70a9ae3c8ce36b4422608072f175539eac8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEVU52487188 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4266b1c54c0d2b89cc0f6f8995ee69586ccd079d74003d91a582c13b2b73d5b6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEVU52487189 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b71feb074e3e3d10373f22a4ec487d9e5fd2654465e31a957e4f576ff2b7feb. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEVU52487190 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b632fa846958a55a60d45105f5671673c3154b2780e2a33cd14529531013810. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52487191 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf27b0d40bc72c9f8af0c1c518ee118aea4abffa6fbcf9d304e6bea6d6111c4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52487192 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671283e1191c47d1dcb41ae53815701e743911e2d189ac203d5c227eb12aa5bf. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEVU52487193 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa080bac98e5bde353b801d2aca649f99d7686edc1ee94965f9c2c5c0cd6810e2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEVU52487194 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4b2b9fe22b652daa838dd4ea1f9db38b074edc4d81c3ae0a7eb3ffc73f9970. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52487195 — a six-check JSON result.
Entschuldigung, dass ich ... existiere?", Teil 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9788e0da2bd6ac496e7068fb541c40775d47aad37ad328008d5dfdc2a8c0b7d8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52487196 — a six-check JSON result.