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 0x720193c5aa9dc18d287337639408eb0cc9b217f2448c088e2ffb85add8cb0903. 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/f9ec0fa4-c809-4a3c-8b29-bd410df205ab.json and https://artists.proofprofile.net/proofs/artist/f9ec0fa4-c809-4a3c-8b29-bd410df205ab.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 0xbb730de89450855d8e344eb3e25fa6910f5b711a21a79658465a9a7aa476716b. 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/DEAR42541009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff25ede2fecacb8b7da75188b4499375330b0586f8d93e22a6b688043dd44a07. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/DEAR42145827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0978c6eacabda51358aedf73dcf93ed4a510941223bfc957fbc35593ce8eb281. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:48:13Z), 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/DEAR42197873.
Noch krasser geht's nicht (Pastiche/Remix/Mashup)
Wir machen Krach (Pastiche/Remix/Mashup)
Wir holen dich ab (Pastiche/Remix/Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a4a2d26423cf96594242890aa335a74123218381d71f9234e11e871aa31935. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:15:39Z), 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/DEAR42245430.
Musik für den Block (Pastiche/Remix/Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a8418c75e9d1d06ccf28db64dc470bbc5021abb6061433f6b74c7d19e7c61a. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DEAR42233704.
Millionen Unternehmen (Pastiche/Remix/Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6390678e3c6ade900e49d50178e3cdd171253b70c6b57fff5e464dd15dbd2b. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T03:56:06Z), 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/DEAR42336874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b797d6f764696a819c078684d054e2ebb2ae14c0ae45f800993dbc710385dc. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/DEAR42334411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde0b94a5d431024ada6aa1501da4340268428efc722d1aa1e5e107ecc042e88. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEAR42316156.
Ich schieß mich ab (Pastiche/Remix/Mashup)
Kommt Doch Alle! (Pastiche/Remix/Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7246144d2803c5b3d85eaec5f78d9e764cc6f4c79f508b285482bc863f79843b. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/DE1JN2386243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6503263f021a1897f7c76d3ec9d5dc09a23178ec78e177d2b5179907149f7e8. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/DE1JN2376625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dfeff01020578d612c800cc2ed98b4dacd61af17c18b3ad96220be2606153e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DE1JN2374046.
Dreh noch eine Runde (Pastiche/Remix/Mashup)
Dreh noch eine Runde - Pastiche/Remix/Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf886a3a08ed17597f21a72ad7dbc44285145c050f7caa46f4126e6eb5f009e. 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/DE1JN2374186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a19945982060645b03a48919a6bce3abf61815493b61b27f0978c140017bf4d. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DE1JN2359081.
Nie an uns geglaubt (Pastiche/Remix/Mashup)
Nie an uns geglaubt - Pastiche/Remix/Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd59e546325457c6795dfe80b90571a24e37441dc268110d3408680945de16. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:31:16Z), 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/DE1JN2359013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5d3f5b4517c1234a86cc82d5809fff19af7b02da3655c716d19cc4dc8554af. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:07:34Z), 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/DE1JN2355034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6532cbac4fd4e0fd3e6217d60c9b3d6d1f09019cc5a92b93e8ffd6d72af3758b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:09:48Z), 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/DE1JN2348106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76dacab59eea306c45117af493c4ac97d20a52654551b9da28ef5ca9de3536e. 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/DEAR42496242.
Alles wie es soll (Pastiche/Remix/Mashup)
Alles wie es soll - Pastiche/Remix/Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeceb9e8b46a3fa4d35a5ad6146dbf7f9e5f3df12e94099ace9ff895b8115a4c6. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEAR42491925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a505d5d1b19953cdb86f6bf3c70e7e5a0c9b79dd96d9685eb4360f1b5a9db05. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:02:56Z), 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/DEAR42491856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663f4c36124166ccf1be942a0c97715bf851a70bf15bf20c3029acc909cc4c73. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEAR42492351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce77b137f3bfe9348e6afc28e7307597d24007f9ef21b9e12b2e22f615619ba. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:04:52Z), 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/DEAR42491300.
Will nichts hören (Pastiche/Remix/Mashup)
Will nichts hören - Pastiche/Remix/Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b3d943f4d04c820701754b46376edad16afadfcb2b7f22e9c50800514a3b54. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:09:59Z), 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/DEAR42489118.
Genie und Wahnsinn (Pastiche/Remix/Mashup)
Genie und Wahnsinn - Pastiche/Remix/Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea2ae8d0c708f05b562576f1b73a8d4ff919188958b7e3a43b2308f7a43c03c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:24:52Z), 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/DEAR42484321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419482c016e32a207fc8710d12c724ef2b786058a155159dd97598663fd55e69. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DEAR42483543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f05c61e4e695b9f59b92744685dbcb148568eda3334a628f09a7ca07b2bb82. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEAR42466666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da1f7e4039b2b3bce4adb328f900993160f83c48eb06e8993f227d34915b4fc. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:36:18Z), 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/DEAR42457523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927cab9950efef0188388d5ed83826a2f1a491ef547602d1963b0f45f51aa34f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:36:34Z), 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/DE1JN2444641.
Dark Side of the Moon (Pastiche/Remix/Mashup)
Dark Side of the Moon - Pastiche/Remix/Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28eb210e57021a24abd488da9112751759b4a42dc1b074aae1acbc33f808bdd. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DE1JN2444815.
Derselbe wie damals (Pastiche/Remix/Mashup)
Derselbe wie damals - Pastiche/Remix/Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36def76567dfdea89b1484f033ff178d06860cc2059a6e91ee11aa803afc2c12. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:16:37Z), 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/DE1JN2444431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b82ffa23e710c4343265ee771ac4b008c6038e9058fa24d3e5777c63bedc64. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/DEAR42597200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2b440747c57adf1eb2addee9e476340873322713f26b217ef7435f9e04f2fd. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:36:43Z), 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/DEAR42597290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9da7ca3392c1a0cbf13aa9d543e74f2058a6b95d5a72991f361a98d721a6a8. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/DEAR42597308.
Zeit bleibt stehen (Pastiche/Remix/Mashup)
Zeit bleibt stehen - Pastiche/Remix/Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf7c9a82fef2daea4d256cf64a4e6605676f6a9be269a5262fc74d52b4d20f3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:06:52Z), 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/DEAR42597208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e54de1ca08e55d46482da3e5774d660d52d830ed7f7cfdd60e5035f1f9dc60. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEAR42545385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845b91f724c3183f4601ed16021ed152de6414d11f9c1971d7bd4f6865df6720. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEAR42545384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8276d059e7c83e2f860c84b1b0f78f7b2bb7ec03879f59c319af8757436f592. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/DEAR42545369.
Der letzte Stern (Pastiche/Remix/Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe04a9cd20b4562305e9a97d05ceed9276de9f79654f3bcbabe93aeb8133ae13. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DEAR42512416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e99eeab3a4c1c93be7d718b4e0551ecf7eebb55cf20e42707c0d109a753f80. 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/DEAR42510498.