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 0x51ab995ec051a820ed5b39dd7c3c90f4e3c6e4034aaa245b3d09aca2351e0fd7. 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/68273b7e-87b8-4d6c-9fe0-e1a37268cb4b.json and https://artists.proofprofile.net/proofs/artist/68273b7e-87b8-4d6c-9fe0-e1a37268cb4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die Feuerwehr rückt aus (Wissen Hörspiel)
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 0x58f3a652d1b4786ed12078527cb6241852ea43fd82201bdeb459f9ee6b2cb603. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DEZZ42175557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d882f78b18463ed4a2c22cddb69dcafee9eefc2a73a37f1e209b64269943d8. 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/DEZZ42175558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a8197028368ceb9fc43a961796f757eac4bf2d4d264a73a027d58f6ea27695. 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/DEZZ42175559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eecdb8c48cebfed855579790f168b8c6461a5de1ec40866e8a8a3ec1678f495. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEZZ42175560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad85ad8315c14acf6ff7af20714db88c07eb8e49ace7242142488928168905ca. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/DEZZ42175563.
Im Wald Tiere entdecken (Wissen Hörspiel)
Die Polizei sucht Diebe (Wissen Hörspiel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73cdb923a620dbdd4781316eee15f2e05799c805f0ff429929a0ca8456ab37c. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/DEZZ42175542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd1438ba7e82af0c473510a06f9f8c7e3b33d684beaf7134a95afad6cfe00d5. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZZ42175543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80d72133c1f599f35740c311e67059efe5e104c1465859b899eb790962808fc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZZ42175544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdc852c53aab52d6461daeada52f6637950f7ced7e99360b309ff6f58536a93. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEZZ42175545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab222efc67a093cbef13460c3b89e03d51a3a78ed1681b5d8323fbf91b09d94c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DEZZ42175546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a827a6fe80335ae460b70604a919aef82f6040c1bfb7b197001f6b4e593449. 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/DEZZ42175547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c5182a7fe40baf1d7cfe09c7bc668f8eade695977a4a169e4676cde4869e04. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEZZ42175548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d36b5afececcca5e0b2d0d4bbcb3a98c23ad2bf9c515cebcdbaff44593f8da. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEZZ42175549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c65c413ddafdd94ccc5f28cdc198bf0efed8a074e7010e80d8efd8c2b8988b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DEZZ42175550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5dbd5ce36655a222f5ea29eab0994e20bb2eaacafcaf90dcc55f6f8e8ccc52. 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/DEZZ42175551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc1335d1b7969f3a39f6aef49297dfd710828be74afb316b91aebda6cea0789. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/DEZZ42175552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785a3780468cd54769483859229ad71860c02dec0e96c7211fdc4707424e0093. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZZ42175553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7951318be1269786a340b4576c8a41eccc25e330987b562a15010927f8c5aca. 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/DEZZ42175554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e11a2b31501f2f40ecb52685a74969addb432d1c8cbc45ca6e503578421893. 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/DEZZ42175556.
Im Kindergarten Freunde finden (Wissen Hörspiel)