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 0x437ecf5ad42a1bb5a7ba2733c3783a7a1ff9aa3bda7f07d4b35e74763eba597b. 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/af29de7d-9493-473d-b140-4a37c1b109ba.json and https://artists.proofprofile.net/proofs/artist/af29de7d-9493-473d-b140-4a37c1b109ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kapitel 18 - Die Letzte Flotte - Die Letzte Flotte, Teil 1
Die Letzte Flotte [Die Letzte Flotte, Teil 1 (Ungekürzt)]
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 0x7c7184f7657e484203affbbefbeae3e9c94a93f3e5b4cb52db623b733debde53. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEXN92451771.
Kapitel 5 - Die Letzte Flotte - Die Letzte Flotte, Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1be6b3052cebd691e51861bed7123a981146c1290ea51cfcee2a23ee398b0cb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN92451758.
Kapitel 2 - Die Letzte Flotte - Die Letzte Flotte, Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2544abed6f06b20c04b3d1e38971c0f83b1e1248955f1cdde4f38927af368609. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/DEXN92451755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf170f551d1ca00743d7c05afcebde7ad613381323e3d35bba7de97c23068362. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEXQ89888609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393e7bb22bf904ec444ea13241c1f482f319112c1c412ea66cb843536e27de4a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEXQ89888611.
Kapitel 33 - Die Letzte Flotte - Die Letzte Flotte, Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310888f424091b6dab10bda0534641c48eea0354b56df054ae7641d3eb51b6c2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEXN92451786.
Kapitel 179 - Die Letzte Flotte - Die Letzte Flotte, Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6207517954277cff2da75566b6af9a5b7b08a8ddccc5e96641c85af1023e1aa5. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEXN92451932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd02eda2e12274b041af1513b0ed3898e5f2ffbc7999da4ec08f648b1a2a670. 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/DEXQ89888610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acda5b1f9e1ba3958822c4b1354d2e2817866821bd746162fa964775b04311e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEXQ89888604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679b33bf310dcdadf8caf3aca0c6cd6e99a5edcc9724f678754f032714ac1860. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ89888596.
Kapitel 16 - Die Letzte Flotte - Die Letzte Flotte, Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6654744bab5c5761e331704f11cba402400b4e2fefadaa2d046035986b6fd31d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEXN92451769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89be453c5fdd37d73acd1895eac1ee69f495237280a5a243db80f3346373e074. 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/DEXQ89888598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb4b7c6ff44e5de2b902c5cacbc28097969246ddff96bc708c90066dc1b0d86. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/DEXQ89888607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5617d64c27abf2bb77b21ea34ab4cf0bb8b2fb51794a0892c353e8d2b4c24791. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ89888603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4847e4e64f7732c2526b94b2a09cdf7b639ce61cc764d5dba805743d8e4da3d3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/DEXQ89888605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721a0e191f4c2f38339105b2f9bd70d3080a6f850037fc3a56fbcd9743b92868. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEXQ89888612.
Kapitel 63 - Die Letzte Flotte - Die Letzte Flotte, Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5dcb53dd2c6ddf11c64f69e23c2d28f136d54e029ba2143c71f98e3061e4bfa. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN92451816.
Kapitel 138 - Schattensaat - Die Letzte Flotte, Teil 2
Schattensaat [Die Letzte Flotte, Teil 2 (Ungekürzt)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515c0028edc29a07c7854abd590ba73ef9a89e4ddf826fd283d25b36e007e4ca. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN92498706.
Kapitel 26 - Die Letzte Flotte - Die Letzte Flotte, Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3404ecc6c089e490b9eee43423a529c4435a3c59308e5a666feb01a113508f2e. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/DEXN92451779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe4078bd0570b0901588f4445f65a1eced6628d0daab2cbcc70ad2e71794bf3. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T00:05:41Z), 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/DEXQ89888600.