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 0xe6732b7f42a9ebf9c9cf3572c0881b8262ebe4ea20d76ca8df44e05c674220e0. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b1aad32-fdf0-4da8-89dc-4e03db070bb9.json and https://artists.proofprofile.net/proofs/artist/9b1aad32-fdf0-4da8-89dc-4e03db070bb9.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 0x3bd029ff258a764e49c6c66f95502f1fc694e763ae50c6e7858b69355cc5a569. 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/QZFL91800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee46ed09298d6f31316c5fdae7e1cc1a513546aad8dc7dae959d7cd5ec35eac. 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/USUYG1244430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b101b1a66c271d0e9b3b68b233e6ca17d60de439cf2267d1c4ea4384bec9ee0. 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/USXQS2127179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a6100d6a5a7dce343a771fda22d0f62702a9821ef3af19c38d405622c94991. 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/USXQS2127180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2eda124aef0098d5c3ef0da8dce920900a4bb50359d35c2a7bbfeb1ac95d75. 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/USXQS2127181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658f6389baa15da9832f82e36bc757a2131d7f794f5e580113cb73a9212a628b. 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/USXQS2127182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d4ddef7ddaca6c50a400e6c1bfed2ed02bf5129856d60cc97eab366166facc. 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/USXQS2127183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9b746dcfdcc0f739bf0cb9a043b1136b6c6b3f99640e8a8b789bdeb302f16f. 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/USXQS2127184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2c7a9384777298a2007e4407043ad34ff0fdc892cd7f3cd081f25b4c0c9ba5. 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/USXQS2127185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f2d6f7e6b9958f49157a2ac3365ff80e37bd7620088433ea0eac2b156d94a4. 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/USXQS2127186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68626ac0969c6074aef23304331d9f94e44250c91c68af26610a4c66e9df5e7a. 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/USXQS2127187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb404af1e6d1d097af129d0f547c104390160fbc7962ac894cdf62af06a42bfa. 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/USXQS2127188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb67c71bd9370f82fabe7172c6e53854903788dd81f3c25099dc2e13a30efa2. 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/USXQS2127189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203b8a569587d480726d3767ceb6bef6799c93d57e9f2bd3fc855182a2f2796e. 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/USXQS2127190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd0253090a028b4528be3c76be305587c98c95be022a8975abf1a4e5f424e66. 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/USXQS2127191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dcc483b796eacbb63b06fae38e95e76f6fc8b300c25f468ea66560b37ae7e5. 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/USUYG1252787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0ad3dc210381f706eca919745bb8ab81b748c2791f49d0892af0fdae181629. 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/USXQS2128959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5093b36958fee7dd55a30bdbe9160ece1d9cdf38c38e967e1a1517b5ecbd3bc3. 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/USXQS2128960.
I Swear To Tell The Truth - Swisha House Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75037953892f108078fd3f669f5274171746e01a0a94b220f1dbc6aa687dff9. 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/USXQS2128961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2472c17433b5647994487b48ad532535606118572cf63d775678c9108ef5d86. 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/USXQS2128964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9f4b97aa393de83cdc490e421ac65d02aaeaff0fcced521aca8f235872c9e4. 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/USXQS2128969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecb24407196e4947a22a1814a6d7fc86999e8b9a3e5f22956ef818aaedf2ae1. 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/USXQS2128981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913e69c8b4604e3817323fdf58e8698a748a3a7573781d10d73c0ce004fd84e3. 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/USXQS2128984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0753650d270ca85700e4386052cda7a27333e1bdcc3de86977824b55ca289b41. 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/QMGR31828052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295428702d10ed3543439700ec10140872bcf4a1a6320f2eb4e6b0beb23061d3. 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/TCAEC1903526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e28a920924b9a7f6fe5b621c807e99c4d76b8e76d05f7941a00328558d4e6ad. 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/TCABK1261727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8516c231de13ea946b64915681b3792de125e743076d17afd8d6e5c6380c6778. 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/TCABK1261732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5c0106a6c3d46441c2bbe553af20439adcfa59f74ce49c71b7e71333662c91. 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/TCABK1261749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ff236ec370220efaef670e2784896495a99efbfd4cd200ae1b95320449145c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TCABK1261750.
Kno-Wam-Sayin (feat. Slim Thug & Lil Keke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fd56390e254fbe0c46a41a5e442e6f8519e750d019dc23f30514cad0f7b8cf. 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/TCABK1261752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf4116214fc59932372321065d315bb2116884c636df3c29580f361ca4c173e. 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/TCABK1261758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742e7704ed2b79905af2b11bb42b1263e7cf3fbe47cd33cd6e777b292bc68abd. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:51:13Z), 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/USUYG1223456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30aa247a33bf334a5ad8bfd9507a4a6bf069cd055497e6073ad32c7b66fcb46. 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/USUYG1223457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac423042f20583e229fae94461b873bf6282ff0b1b6f2b260037df8a5e9998f. 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/USUYG1223458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69745ceb63bfcf8a360c2bf0ca4dddf015fc4734dd81eb16fff6bfd819d869bf. 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/USUYG1223459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e405242a8a1129348d0040e6c38e90994b1b3ac00f334e8f0b842e8a568662b. 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/USUYG1223463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605e09036a092f62242cbeb1263b7c217abe7865af28357954076a3ee80b27d8. 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/USUYG1223466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2bfce3af10ef1f0ad94a2aac9d2e0ac403b4de54211320a162eb4c730e8cfc. 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/US6YC2002650.