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 0xa2060c70e18a2020242119bb95508df7786764b6760b17cce65e24a2438a0903. 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/74196bd0-cf91-4476-a065-a51f392701f6.json and https://artists.proofprofile.net/proofs/artist/74196bd0-cf91-4476-a065-a51f392701f6.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 0xba9fa17ee716ebf2e71a37e69200d26821d88947f7f90818fc65a9593e6eae2e. 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/ATV110611024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee622aaa46179c8fecfab0b87fbd19d75566c43340945366d2355a6e26197825. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ATV110981003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1cb61fe7deecf27bf62d90418d5f4b183a2aefc929e6b511d10e283064dc0c. 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/ATV110981008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456d64c6ab97dc6a0709bf17cc11c8a0c4aefadce7db803fb5e4a2a399fd6a3f. 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/ATV111910195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe4d7670e7bed299b836231ba562d08434536e4d7eca57c6e2a520bb33f5023. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/ATV110611001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe28058068631c755f5e5deaaf05e8984f7e3eddc06b2dfc649eb0bf3e36322. 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/ATV111910179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129316d2090688f09ecf84b76ce7522733c97ccb1de098e5b4501ff8a07840f2. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ATV110984009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66da48ac00f48482cbb2d2594955cdbeb0fbe417afcfed0886c638a1105b7daf. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ATV110981009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2874e04f93b1240301197fb11119fcf37532b30b513388b377fccbd096356b63. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ATV110521001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db219968463c0c6b674f4ea54661b44e59765657f7cb269db77f13c02c3d094. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:07:47Z), 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/ATV110521008.
Die Mayrhofner - Für einen Tag Tiroler sein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536b71956814d70035c601985816cf18caec63abd3d1c85192dbaa33632a3cae. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/ATV110767001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0773df4b684b2d1c333b62b9171242b5ebe31d25088139499a8d29e35338af55. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/ATV110767004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70e53ce1f7e5ce9e81a608780eeef52166a5476554387a5078e06e0195244f6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ATV111044005.
Die schönsten romantischen Lieder & Balladen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecf30e56bed62e10f780b4afe22e535044fe1528341485c9c5947acc4af7c98. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ATV111202004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7350891ad2687da1f3d8072af7e8b83d47584cdd3fad77abd3c5813a5d0b0717. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:17:11Z), 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/ATV111202006.
Die Mayrhofner - Wunschkonzert im Alpenland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa884c252cee813ada7695d2b351768ce2d55fdf73a78d571c01e65d4eb88c3. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/ATV111310002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9256726b266ba80065dec1fe6d0def4d007d6ba689409fa6c95b65fb5170f88d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ATV111606005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d336198da6741f5f18c897c591e5754bb0575bdae143b00130e5083af0fbef. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/ATV111606008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7031940490a66c5939abb8d46a64dc802b0f3d1206c42366ca40581903052052. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ATV111606009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4520f1d9ad60265096bedc21517a3e5a5f5b66d84544101c19481e8614b9085. 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/ATV111800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecd68691a4178c6b2394d17bac178bf09f15764045633b213249ca0a69fc7c7. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/ATV112300194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3865bd459061d2ec09a5cf9d0180ab2121ebb0c2e891f3494820d5a1b80df54. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/ATV112500098.
Tausend Grüße aus den Bergen - Neuaufnahme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d8466aa01f68648d3d4f667d6f3bd0d00be70de452d278c6039f133dc6a9f5. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/ATV112500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dad0f0370376eaa0594773219f986b9cc5ec83167dfb1e161aeb38b12ebd8f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ATV112500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9807ef85ffdb620902a4f712b6bbd8b35fe11bcba7bf18cbea550d18afa27a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:43:21Z), 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/ATV112500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85906e73752300bd8cb6f0fd9e203727ff02acbff52f08bc3b554860f0424599. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/ATV112500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3863064e3c71cc4336bd6ce399aa8b7e57f2924908982ced4d434aac7147992. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ATV112500244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dcf463929660a010f1f568ef7cb3ce99f8551316c26140005b6081f84e370a. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/ATV111800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b8bdfed4d6c09101fa159f49af121897e4f765b52ff242eaa1afeaa3ef19eb. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:02:39Z), 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/ATV110984005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cb0d999327be17bad150f512cc8285a1bd2754239d366210843ed6ec03782c. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:17:20Z), 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/ATV112500245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e53bcc3727fecffebf7c34b9c1387d933c2c870959d590cc5cd358d5ddb6063. 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/ATV110981001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129316d2090688f09ecf84b76ce7522733c97ccb1de098e5b4501ff8a07840f2. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:40:40Z), 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/ATV110984009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43640701a584017c3ca31046fd4fe1daa4e9738be0a637b0e82bb8d50e91460. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:29:36Z), 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/ATV110400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e41b8c16e78ba53ba075ad8b7d479c40c38a8123aab2d9221b20ec6b829f984. 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/ATV112500246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec5dff80428d159d7ecf05832cee056c522b96a20bf56f908517a81965d8b8e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:39:18Z), 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/ATV110332013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3613227b78e8e00b54ee08248c7da6a6e4df0d392905f76def673d82b38d4e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:37:48Z), 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/ATV112500106.