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 0x7c2199979e45cd45597ce7b102d54c1a4f60c01f979adb63e6f9c6ff90e3f1d7. 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/78cf82b0-090b-4b5f-954d-f6f66880ea5d.json and https://artists.proofprofile.net/proofs/artist/78cf82b0-090b-4b5f-954d-f6f66880ea5d.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 0x9cfcb45192eb90b70a75816752937b2817f06cf81a314048967a92bcf278ef82. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:18:04Z), 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/QZDA61808182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41855882b44350e7b7ec38b0fd0b4f5319194edfa30e5489ff6787530c4c3bf8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:12:11Z), 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/QZDA81820415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0cec6ef6c6404a1cd11312b70611b3c84e73ba5d127e64c6ed18ae758be10b. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:47:47Z), 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/QZFYZ1918798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f3304b75fd7895435d980a4f803637e2a4477c53785b271219ccf52f7bc3f7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:05:26Z), 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/QZHNC2030847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08893fdf43321865febcbace4344cbded572ff0ca6fd95539933a007f3ed5a4f. 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/QZHNC2030848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a836dcc1b8be4df1b44b681d12352d1f319209174ed01df552559cd922479b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:03:35Z), 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/QZMER2037475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18973b5a99a760c680056c0a4e49ebc0aad0a8697422e714be2b920a8191048c. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:40:55Z), 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/QZDA82160990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b6c5d8722e3ab402b09629a2cafc2be364f72d0fd27f0f8b018365f85dcdd9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:34:44Z), 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/QZDA82160991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422daf0e68135eb4a221f4c03317306482cadc9d02e1887b5f5fa9bf1b1fef29. 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/QZDA82160992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf345f4fdc20e07eb869384535c502706a47f2133d81b72a56503b2717d7ee1a. 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/QZDA82160993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f206e6d95b56fe6eb215e1795d34a90d155f4f5710a83c8b9418f4add44833c. 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/ATUM72100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf097db04b0a19dcbee76e0a827237172560858551703fa660d2d150c5ca566b8. 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/ATUM72100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0071b0abbb400dd0a757e5b902028301d41dad4c576a500170e32110c220af8d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ATUM72100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f05baca8bdf2b7f4ac71901cba607f9993abfbdfdb506569b094e0a01d57804. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ATUM72100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85b66e140b511e56d4cb74a83ff21076cb30d07e4fb0e4877a32f1a9e5c0885. 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/ATUM72200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59808a6f3d7e5fe3af6d34b0abc1c55039edf0e00c794655050fa966a710c524. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ATUM72200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa736be14a9f9cf734701ab1793339c6d6593eea06c8a705d96763a43fa38d75. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ATUM72200215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038f74cee1db37ab2514daaf9a4737eac5f9181d7359f33bbd0f9c1a2446cab2. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/ATUM72200252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4c8abd02db961c1492c470e38520aa981048ce417eaa365754e5d200ae827f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATUM72200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa736be14a9f9cf734701ab1793339c6d6593eea06c8a705d96763a43fa38d75. 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/ATUM72200215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038f74cee1db37ab2514daaf9a4737eac5f9181d7359f33bbd0f9c1a2446cab2. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ATUM72200252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7845abfa6a835257b977530d51af29fe61082e842fff34d51e6e713d98f0a2b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ATUM72200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5758a9a54a5d8b370a13210f7e3a92b321602944025c4ea521113b16be76c4. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:23:44Z), 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/ATUM72200260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef676d480061fae9b94098c21cb7f19a0652d09587459580205edfdac110ea90. 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/ATUM72200261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e277d5c337faba31672740629ea0fde44aa72de8c01d0da2c44d8c70fb03d2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATUM72300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb460b06b0bb3c0bf51ec308f197faec03b9fdafa9f60eef87e355807d4e74c52. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ATUM72300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef725fc06deb1f3222176dad86612b55197be578810f59765f4edeab1b6e384. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ATUM72300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f34a564ff4e150d00fa8566eaf970e08bebc1a606a90d213a049f2567fbcbd. 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/ATUM72300243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e277d5c337faba31672740629ea0fde44aa72de8c01d0da2c44d8c70fb03d2. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/ATUM72300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a704004bce8bcd5f207594c190f350a501b388a3c2767e502b5b725b572f7a5. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/DEXC82400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ce51f338502d3eab53f62d4646dd318f06848baf4453cfc9f8abfd9cc7d697. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DEZC62402621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27426e9b4a7317d698178c68ede5500faf8baf57853fe42b3d8012d05be73252. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2571468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0071b0abbb400dd0a757e5b902028301d41dad4c576a500170e32110c220af8d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ATUM72100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b999b9a4e3bc9267ee5cb83582bbf0b3dad022b929c397b713921becb606a1. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ATUM72300241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0071b0abbb400dd0a757e5b902028301d41dad4c576a500170e32110c220af8d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ATUM72100168.
Alles was du mir gibst (sind leere Versprechen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd484a048e996344d93272deaa18f5e27413ca41248d383b437fdfef8deda7483. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZK6J2142743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eee5304e870522dba4c5bbe57df78d8e7b874cc023c5646f87d1f14bf3e040e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZK6Q2134535.