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 0x760ac2cca2952de0ffdf802b337e60c75d131207c2e6e54187ad916444295b0e. 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/c516e270-07c1-4fa2-86e5-9a9837117ffc.json and https://artists.proofprofile.net/proofs/artist/c516e270-07c1-4fa2-86e5-9a9837117ffc.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 0x5ae6a2d27f27b0cd63266c2a40562738441adb2aee04643ed35fda01c56c3832. 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/QZHN72019146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3821e2136a891110d90f8317ce86b8e331c1e7c6477d1637e86111dbbbf6de9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZHN72019144.
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 0xd4e5224de713888d025a78532783f4feb23c0e15359c26d8238bcff2d234cbcc. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZHN72019145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462e4d310fda8c1bacb39351094436dd1440bbe8b645b5ad4ae25918989c6e9f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZHN72019148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6146d17b1a08de472bb381b23f340374a9e29faf761cacab71c9df654acbec6f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZHN72019149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55243f58f3e83e8a9fc59b7912d4b3a60bdbd5e759b471dded56e50a332592b6. 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/QZK6P2030539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532bc80ab08a59ec4e28b636e430ef59adbe3171e1edcdbba51f05b207c5a1dc. 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/QZFZ42184228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa44aaf5f74ea8718656180c5dc1d140ca86c1650179dd5c674c1d5263bdacc. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZTAY2481052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622996b3e7b604a0bb48a4f532c29ac32cec4a871dbdb2b31814508b0244c198. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:47:12Z), 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/QZTAY2481053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2151bc9726e4c114f6f96c5d3fc5da81d7304243fd56fba34ed903dd9fd9fa1c. 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/QZTAY2481055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d23735cb78908eaaa7c1a71215f293e014c2bc13e229b3ab499294f2ea96bc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZZ782477083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc462e6a509782f8c600abd56f0f4a85cd5ea071da737d53422abfb68ea2cff98. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:08:41Z), 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/QZZ782477084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cfdb87a8c65bfdfd00ea80cd5fba05ac87049fa2890b0fb00f7275c04f4979. 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/QZZ782477085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6472de9186eed6ec565266a40c4ef23cf759ae9644260aeffffebc8867ced67f. 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/QZZ782477086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f5b8b0671556429e251b929fbe724644070611087f36630f643fb78aaa1694. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:50:54Z), 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/QZZ782477088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa46083c23e50e70427518f28e25552d053e39922844da0d010b30f61f8d324. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZZ782477089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e6cf36fb48858e3eb34f169ff73e77af1e1855a7e3b63ab52645f59b057e80. 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/QZPLR2529865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b8a2133de3f40d3f5ed8e086fcb7b6add613dfcfed93bb50bed72c0ecee270. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZPLR2529866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eed8014af7ba3e397a48e57d522a71b314c8e353637d685f69cd9394aa0fe7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZPLR2529867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16edde4817f97776e8a0c834c5839441ebc0ae3ef9367a0a181c726c529ee648. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:28:48Z), 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/QZPLR2529868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb4affc77d8976a08d8a1f53e7f897ccdcfaa3b53bcd962cbfd95a203a4836f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZPLR2529869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f715b16872c72089fbf98afea106ccc1f1883a8ceeb6c673c5b199073faf13. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZPLR2529870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201ccb51a81c0aa54c06e630b9d30986449d6a7c4692dd1bb36dad15dc1b3712. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZPLR2529871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac68830b5ed6434e2fd6d35f51cab0f972c61185643f8d389f094907df71964. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZPLR2529872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449de5c92aa75943310e4daa2d7f6b80f0dd32637f1a3e37d9c44e466a02b0ac. 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/QZPLR2529873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8900c436822fa0f8f01ff22473fd561fd86a28700b05ae5d0861fe0ed95f0b3a. 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/QZPLR2529874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c952b6cd2bf0faf7335911e6783aa0152b8ee18bb256aafcab3d845a5c6189f. 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/QZPLR2529875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5daaf1cfc94ad687d2bf4dbb698bcf4a2568a788fc1cc285822b24563115369. 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/USUYG1340572.
Don't Let Go (feat. Mack Nickels & Jay Nutty)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b08f9517cf1bb4386c4eebfe685a41d55b0d7b9ed68d8abc34fac0fc9cd594. 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/USUYG1340575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c139b03330409941fa23dcbcb987d9a82e62129e7d1136935e875438aab56c2. 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/USUYG1126693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a73c30e784d1bc57b4c8f42f1077a96548b89c469f149c23e8d93a025e53094. 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/USUYG1122905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf371054a833503dff4eeebfe7bd6a48e51ec84d2b377e26008de7f9331fa5836. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCAED1973252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a072d6ffa4006865229ad917c4c96bedbb13397bb600c8ce4bd156b8c4f9f9. 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/USUYG1373112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4e8e2de1c87fe67ec9891d4d0a493a92084e2d5716bb8c8f1589ae81ec1a22. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USUYG1152671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be90fae651e255a96ebae6328730c8074dd03a32a02955a1abbbb1a1d056972. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZS7J2323839.