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 0xdb39fc8bc42550a5434dfb4ff850c40c539837973123ef0683e389d1ac213314. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e14285d5-c11a-4e1b-8734-f630257fb91e.json and https://artists.proofprofile.net/proofs/artist/e14285d5-c11a-4e1b-8734-f630257fb91e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alarm für Cobra 11, Vol. 13.1 (Die Originalmusik aus der RTL Serie)
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 0x64bcf1d095b5b8b3aa98483604ffeee6a54cc97054ae0868f957f8c940ed02bd. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZTAW2593468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f41b4dcfc0f1c56921a76456c051415fdbea8df44f7285afdafebc52f383cc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTAW2593472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d32c98bf442d32b8ac918ee9f203110433eb9d670276a36d0211abe553a0e58. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTAW2593473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64587012ce5b822850937ea25da88b855260187222eb97d8931c51cd080d9b70. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZTAW2593474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7fe0d1813c18fe55b5995c814d0c8eda0673867a0a193576809a9e5bc1cbae. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZTAW2593476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665309a3e1efe862d80251a5685cbb15ae64900d7353de773fcbac4ecd6fe3cb. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTAW2593477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42faa145f0bd49780dea2e82492bd18c117e82456cf0658d6b6d72d8cef80ab. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAW2593478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d89fd46c15f36a87623ff9b56fc94daa20ecda374c0528d251f6d86d547829b. 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/QZTAW2593479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2626a4b37e1ff1b69025562d8af778b1d0e2acfc2fb0f678a91078ad534a8b66. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAW2593480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8764afd8c35e746e4bfee17f425043e3f2f1eda387cedb92494fc53f58a12d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTAW2593481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b027875e8df10b89f686e26fb5d5cd2bd428a6ccd5e86cec80d8795fe03cb2c. 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/QZTAW2593482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e04c7b0e5ad71b87224f9620e69fe6b359e786553b1aad9a19c28d68f53283c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTAW2593483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462a66816204e0dc5fc72d7f13690c477deb205a40bae865fd81df1486c1d557. 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/QZTAW2593484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9329521755fd5bc38f792eae413f33a446e92bdf0a1ee6752e6757d2e1454f69. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZTAW2593485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2736309eedf27a41d45ee83ef31826a18555fa1aef59ffee4a8c2b830915cb99. 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/QZTAW2593486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7c3c92e950f0e10e7658827e78796af19d976edddea47a8c94961c7c817a91. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAW2593488.