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 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 0xfc2188075ca61222f51bc727208a55495024042f8bb1e4b93811ff28e95bb550. 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/dcbb08ab-a61f-4479-9a82-4b9636dba413.json and https://artists.proofprofile.net/proofs/artist/dcbb08ab-a61f-4479-9a82-4b9636dba413.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 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 0x602dcef1ab0bce9844dc138c3ce296f0075e4654c215d7f1e5bf70593a63aa7c. 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/UKACT2030998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae963f84ad2c85f77fbe05dca2413dd5e8778203cceb9db2790415c3537ea291. 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/GBQLP2000799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02929bdf8c6f61223e13b3427b8f58caae8595eea9c9fba5fa5750f3f3263d3e. 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/UKN6K2003282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827c5a20a8a18dca7e5fd1a2daaed2ec23ac897e2a798ca9cb65ea214562dca2. 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/UKN6K2003284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7e87a81871587f97c0646c7726bea12fc08533f0692d7130e48ceddffdd03f. 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/NLYV52200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66138e5ae15779b101a1f2a68f510ec4fd04b6b83294dbfa4632beeccc8d0228. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLYV52200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb8254b937d2ed067112b3c1cf89421e0fd75eca6d52657ee53d055a81266f3. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/NLYV52200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a258f1bdaf365b1cec19f426c50a6597072cf8a8e9c152374ec1f89c6f9b9d7. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLYV51800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee8941adf0da7232120a75a4b9d8857e18788bdf1e277c9d8f5bc588416f191. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZZEB2397393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26d44a7783d4c4e64166e09733c0013b03d66bbae081ea0df650eef7e3eb286. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QM7282411941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4353a3afe1f50d14bc12bcd1ff4409031c73d0ad05f46cb0f3944256c0bc5593. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMVU42400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6623505b583c12f0fe529d778eb371a58590c3287aed1d4324363287e76ae21. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/FRIDO2415431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b45c7ef6e05355ecaa0c37128a2e5929935fb0b3f06a854d50da646d7b6107. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRIDO2415432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe521e77d9278b5aadab82c1eea92415b3a092b168bb1f6cdac201feb3ad93a25. 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/QZZEC2452202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2468c566009899b4d048e86079711b3c132d15392769fa3e559afc120bd91d1. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZZEC2452207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ac7899585e81fd0b8d44e6503255ca3f03636965195a034980fe67cd6db404. 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/US83Z2502104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02edbd6116ccd006438db849c40f4a97e44d1c7f3b8aaa619072e1334fb9347d. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/US83Z2502105.
The Recipe (feat. Lyric Jones & Dj Tabone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9298d1685efa2275c08610397b853b532989668054746e45a3f34310a9849b7a. 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/USUYG1706944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d307e43f4f0949f5c3c6e4dad791df2acd2c45b8924de429218bcec76472da. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/USUYG1706947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f1eace6e8b9ef8bf9e9b7a554635a993820fd6549d0dce9290bdfe275d084d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USUYG1706951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbb4478b26089b27f5a66dd473a9aef57ac11d869844caab7c49c82d6634e25. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USUYG1706955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0650f65f56c8f69786204ef482d8075c5639ed4aba97386ecfeb012eafa7df. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZTV32570060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0957186d202eb066d020cf8292f0301b7d8b41906c55eed8f40af1b14d675423. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTV32570065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ef6af91a43c296ae240276e7487fb4f85c752af5e6576b4cbdb58715145644. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZTV32570075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030e6ad8e1f0b9708866f387cbe96f9ceebe7912d177cf46b6796aca77daefc2. 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/QZTV32570084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395f5633334ec2751416be5f155023f8357cae1fe2ec9f282affaa0dc2be836d. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USUYG1725256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852f5cf20a4d9aef25acd0a80f8515efc51cd9220790b18c62afe3741d5c23e2. 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/USUYG1725259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa44254780d720709aa43682997b370a60fc091e558a11d9a5c3364926b8ca8. 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/USUYG1725263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b36c02fdd2abde42f29918149f98ffa612c4b43b68579a3cae5246648d719f8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USUYG1725267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b0641e2d792ba601a9d50a18829976362b93adfb5a009b2a79ef4087ddd442. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USUYG1725268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11230cb72c339f4c561065b02d4f35307136cc57d01fde2e2c10fa4cd84e61b0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USUYG1725271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dbe746cfd6492f33a000e83deb387719f9eb3f70be3c96a5942375c2a76828. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USUYG1725273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77dc62a5789e156ab1c590d5839a7a9b05423917bc184321ca29aa200c72ca0. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/GBKQU2579124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99803422ea3615bdddeee8699272f80b06e4e1a9f2e5f23a0dad50eb5cf1bb8f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEKB72050338.
Original Classic - Byron The Aquarius Rap Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6400e8fe0c7670f3127f3d702b215f22cb3b105145026fa7161d46009a995184. 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/CAL452206301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f84ad2dad56efb6ed91fbdb00a9f4f9510f26fa04a4d8de1e24fbb0187eb74. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USD8D2305001.
Original Classic - Byron The Aquarius House Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633fda756da3ead520509f2405ad90f01d92a5a837838d2a6a83b074b62d728b. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/CAL452210701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357edea4aa619c2507a9118f1444d6fe1b917c4f544cb5f058001a4123582bc4. 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/GB7NR2430805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b222da0d77a1a861eaef1de3822fd57cf0bb9bb98fd31135bc2a3040d7d1654. 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/GBEWA2101342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ef3c2844bf481319932f9a425c5e7dd5f7de8f70521d97a8aa933e0a22b846. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEZ651703939.