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 0x611b90073671afe77066016b9cdb8c47f0ce866c4338426da378d12d78d69d89. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3782d6d1-ce41-4c56-8cb5-2f9b2a78b687.json and https://artists.proofprofile.net/proofs/artist/3782d6d1-ce41-4c56-8cb5-2f9b2a78b687.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 0xd2c472bcc7cedaae238c31a181473fa09a077641c85e1fa59cc3094917dbaf07. 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/USUYG1319327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fce7244abcd0c0417d9ad43ba46f0be7b85a2b09a329eda38a94ed557be7236. 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/USUYG1319328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9970b108d09eaa868bcaa2cf296a5384e744de0457da6d3bac1273397e0bd69d. 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/USUYG1319330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dad115cbdf1b7eeb5ed4e434acf7ce23bd68f3dc2c753d5151af31c7d1c688. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/USUYG1319331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddbbf06182d8b115f0efdcbe366de32fe40ac2f8d0b2e75141ef0459908bfc4. 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/USUYG1319333.
Stuck in These Streets (feat. Yhung T.O. & Lil Tutu) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ddaf2a97792ff61a03a9e19f7ce943d24b707e4556fec71f8eb4b05a169a6e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUYG1319334.
P Talk (feat. Flexcitystreets & Yhung T.O.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c54c5da4bb0a0676d3b8f9159a4cdf4e7baf83e845f424c8cb69d89e84c0ea. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USUYG1161740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b03c431a1f3478ccc9009a1c5e6dbed7e986ecc80c1d98131996a3714d126b. 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/USUYG1161742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a800ba33a9830eb3b21be4ae3abfd206bf3819ccb6ab0084f7baa6f289fb066. 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/USUYG1161748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1e14e5ff3b2901411018b3434b516e31452a962675314b5fe3f5fbed0fc239. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USUYG1161749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fea4c69dcca7117b3982995b7f4bb3173e266433c1a0d3ba6e039cc5080fcec. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USUYG1164180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e077704f36f4e84a9ec80b3f022bffa6f492bc6b49b3219920a335f238300c3. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USUYG1205122.
Hit Em Up 2 (feat. SOB X RBE & Qrealwitthasteel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb840fdf495e232b3a9b230ec8bdf0754ca26fc47428d960e1f9105c13d992b44. 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/USUYG1205128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a042280644da164c514c15b97b1b59568e87d7d4f62498e5ae2a2b5b297118. 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/USUYG1205126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cc85cb34af567f0a46b0a76e87b9314a8d1c9b78f4862f582e2b55d6d4af91. 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/USUYG1205123.
Same Shit (feat. ShooterGang Kony & YBN Nahmir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe182f3cc1cc4c954e87668a63c1c46f7a029fdbbc2c25fceb76ed72717ee3b2. 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/USUYG1205127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1093089537811a34e24030952fedd3fa4821bfedbcaf4cffd0ea11955931659a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USUYG1205125.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149da656730e5c8f33796f42bd44e45bf189a50647190f1687efcde21f1e3948. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:28:50Z), 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/USUYG1248082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d1c9ad02d6933c5ed4ce27a4153fdcb65512acd192f301623b7f79563228d7. 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/USUYG1342146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5671bbd20cddb096f4d2ab771a7f1fbae4d220fd1fd37c01e16fb71ad02737d. 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/USUYG1469519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c354c18e2369c739dc405935eab70c3575c7c5d6ffea95a580a454077a54aa. 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/USUYG1572787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5e73cb7b633f2930a3e1bc325f4b07d1e2aee651a7c281beb3f890c163181d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USUYG1572793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdfe88c2c4cc59829a5434d95ae5b20d448872a8174f815dc4463bbc31dfe0c. 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/USUYG1572794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1ae563827458d6fb0967e637966a3a87caaf8756da066fcfbf7bf71e7f8b95. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USUYG1704900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd724b462ee1771ea2f163ecddc7b30fc118f41cc80bcb74e36a868d52988fb83. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/USUYG1572784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ca0bf5e4047791c97567e9502ed4a82de37e427d0ebc712b45185bfe1dace2. 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/USUYG1721488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa052f9a7dff698071837386068e63a7dd355eccc679503806cc9af73797567. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:29:50Z), 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/USUYG1721493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9697897eb46be9edf57fb852f09f3a759c7ed050aeccec29c7fc6817d00e8d45. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:37:44Z), 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/USUYG1737738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af2f11cb938088d9291fd3c657850421685e7b14cadd202b4f62b8f67c8197c. 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/USUYG1740693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd421ac2ba8676dc85f266b775f90cbf3bf32cf444f49607bbf2f68fc515d600. 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/USUYG1740694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921f1a3a5adc63214854d4281766e949e2dc35d29f4b9a8e6f6a87c817238f7c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USUYG1740695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3597bb9e351b747e293ab1fbe73108f10b86af60928582e7ea90fc37d8737fdd. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/USUYG1740696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c2ce382367a1467c6d7629b359137429938acfec0c9588aecd55705de5bd61. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:35:09Z), 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/USUYG1740699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9cb6b195d8390fdadbf6cee97ccc73ef0a16afc716a6420502587c9d86200b. 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/USUYG1740703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b6c7fab3e010687344ee60618bff8cc42bce5e4ce4bb50ed532db9c208fc47. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:19:30Z), 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/USUYG1740708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da0cab1c80494011db35eee486534f1f351da87d90cede2b74a8d2ace66307b. 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/USBAE3357509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed2f6cda58306a54e1bb33ddccebc0ca7603144104929855befe0ddc214bb14. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USBAE3357515.