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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb3cfd9cf0c68671bfa751d828489bf664dc7b9b0780316697322877714cb43. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe81155f-f385-44d7-b0ff-c8e04dbd79c7.json and https://artists.proofprofile.net/proofs/artist/fe81155f-f385-44d7-b0ff-c8e04dbd79c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf949ee3d81cebe15bc2c41430f428d00ca94d133068f5ad0bac69fbe75194743. 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/DEBT90600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7168f2723a81fe62e8be12f3f57be6d6ae24eb3cc996a1aaf79d55156e3edd43. 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/DEBT90600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb992973e710b37f62909607d9809a5586c118ea0cfd5fe496fe7f8832322cc73. 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/DEBT90900004.
Dialog mit dem Tölpel - Auge in Auge mit dem Tölpel - Frittenbude Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614e3f73a354e40dbe5ffdbb15da82e83b49af61530e3635a86bda5ebce2ec3f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:28:06Z), 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/DEBT90900083.
Du Ich Wir Beide Zu Den Fliegenden Bauten
Frau Himmelblau bittet zum Tanz / Die Aufgabe davor und die Aufgabe danach
Ich glaub Dir gar nichts und irgendwie doch alles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b109dccad1a934ee9544c64f6dd51904308f8b89327d4fb71ff87c2941931c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:08:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBT91300161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281a419ac4abbf7f07b13ff7cafd80f6c059872a059faae0a6ccf9d30ba72f11. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBT91300162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06ed6b56e4e5c2072322bb858aaa49241b4e2c1bfa670892302603a4fc19b67. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:17:58Z), 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/DEBT91800165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e911faf936799b0e099e302a8273c37040888ce9e05b56de28d175361f2a02f. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/DEBT91800169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1a9788c9f7fe93324310b995297d712a19b76283bc1705fc9611481f996ad2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBT92500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0886ececeb0dfd43c3a4fe919b357f0a3d6c12a2f3762c16b5bc41fe7073ab. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEBT92500124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a09eecfb6597d7ebe51cec1d0f29cf580e585e80fa84b660e66ab4a54f4576. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEGQ10700121.