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 0x5885839716c2e81979b5569927f8d9de815530e02887ffaff19f37ee2701d2ea. 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/35cb0263-b474-4613-88e1-2154ab94c44b.json and https://artists.proofprofile.net/proofs/artist/35cb0263-b474-4613-88e1-2154ab94c44b.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 0x91bbc0c28e7a342e0a3505a2f331c0012eb26dcefda2b37b921176bdac961378. 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/CAU160300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9abcc33987d57ec0b1c7c617fd5bc6ef24d95da1b50f80c9890d88e8781478. 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/CAU160300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0484454ababf2268fa5859ebb351c09cccedda9d6383bad9c7e0555fbb4374. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:41:34Z), 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/CAU160300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba41da4a4064dd8232d56738c297b32547a67ab9e56160295181e12c150dddf6. 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/CAU160300181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785f0d37e4bc455e747abc324bedd52d5fa3505ef95ee4f9e0e275a37cf35615. 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/CAU160300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df70c177a8da1857502fef5872a50efb764d4840486a280aa649381aebe2c94. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:46:30Z), 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/CAB380200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9948b9b19a696ece82babe84b1f700fd884b40f830a61158d3ccffe3c51cf5. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:00:00Z), 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/CAB380200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c59fdc3821f2fbee97c373dd5efb70598106b98311da3b994af2b20e80b00b8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/CAB380200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e2eef23587350088de7e671213bddde30a11e8189dc2855d1567c0a80d8d1c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/CAB380200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1135c10ae46ad7881cc0a31e78ea5062f7eee074540778ac91b0ab7a5f6faa54. 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/CAB380200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819dc44b9c9db93f763b1acd67dff4b276486006e66f00ad7889e57249a5904f. 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/CAB380200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701a60b730762d8c8ebb969f192ffffd56c06466cb851a8909dde62b40c93268. 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/CAB380200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc8b88fd770263b9dffb56ac6b7598c9280ef1664c81dff1a72f0fbbef5f5a2. 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/CAB380200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8093ce31a291c1222d13379a649000ad0da29d12289e40ee2c446e3a0e956a. 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/CAB381310019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42befc5510866855b59b0b7a4c1aa8d643ef7716f32444b2b1ae2fe229ef9c1b. 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/CAB381310020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee651e2b50e147fe5d6af9488b71f03fbb6283e78c41d18b78e8dba0fa48b25. 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/CAB381320002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5156f7281d07ce3013f46c91116a5645603c7531cd37b17d2b2a0949ee36369a. 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/CAB381320006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5ac88b3850dcef1cc60ed4f547c9b592378facd5736ce4f88c4a146de4c790. 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/CAB381320007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55fdb4287ce71692cb214a68d24c2ff4f6999a5179692b79edb93d92fa69ac5. 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/CAB381320008.
Essa Moça Tá Diferente - Monster Taxi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31ff4dba5d5360add5df40627285967a2b2a848666cc26b413d7cfa2843abb3. 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/CAB381320020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11fdda3006663f4e61c8021b3ddabbcd3e65aaaa527083321efa70f81b0fe80. 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/CAB381320001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa70994f3e8f6ac5d04b372a138885480b7fb163e98275df1b48747047e29f45. 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/CAB381320004.
O Tempo Vai - Richard Dorfmeister vs. Madrid De Los Austrias Boogie Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b1e13819ff235ee93067bcdafe9c4b8c7d80e65d00e7ad489d98d848bf26a8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CAB381320024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2df4cc083708d764446aa83fd7d9ccc27772a835813d029b1b74658ab8b76d. 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/CAB381320009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b657112b26e95aacbbcafc7aa28b454daba54775777455f63a2fc58eb2925fd. 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/CAB381320003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0921d438681033a4668f994ef7726b002732aef948410b5cbd86cd0f4966a8b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CAB381320005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9983e228916d3334cb4efb6f0552c97281636087d2f30d44d61f9f3e40598230. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CAB381320011.
So Danço Samba - Erick Paredes Agape Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35aebd6721be3c5c25e5d78d7e3707ea38b82592492298e249589df833c56388. 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/CAB381320017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313a172b4073ea534e0d616ab2df02ffc821bd785ab6fc76f7e3f448ba9b1a6b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAB381320022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8390e83300dd902cb5a347d8e91d7bfcd30ef895f8e83be432ea16c1042da9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CAB381320023.