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 0x357fa9f29161c2f9bd3e6d1adf66ce0cc9a50ecd8f0b524f911a3c7c7998765e. 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/9d121d89-88ca-415f-8361-e5ce32515878.json and https://artists.proofprofile.net/proofs/artist/9d121d89-88ca-415f-8361-e5ce32515878.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 0xccb10d07c93adec44b375cf601a700b7c6b3f92cb531f7f227e4c738de838a34. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADW1891664.
Ballin My Brother (feat. Kid, Payroll & Big Quis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de24ffba0eb8ef6cb767a8714cdac01e2f9ff6e4e0d3c1c9d9fb4b9508e8172. 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/USX9P1346589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419176056aec72eb363dc77160e6c467ca2d686b173d7ece1c793260530a4dc0. 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/USX9P1346592.
Trade It All (feat. Kid, Clay, Big Quis & Payroll)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2d58f6eb551779e5219a82cde3eacfbe62ed4eace075b51c188ad70e88b980. 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/USX9P1346594.
Outta Sight Outta Mind (feat. G-Rock & Reo Grand)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc379eade2c823ad0a232e81d3244c51f1e1b5938d395c05c17a3d1a6a1c41fff. 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/USX9P1346596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046b1fa93882c3a1f36f4c5afa9a3a77edfece971fcab062894c5c53342459b2. 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/USX9P1346598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef21d1af11c7cc1e79e7f0abdac4ed0759548641825e5fba33e97590dd96d0ea. 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/USX9P1346599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495025fb3f298b270a25b2c6447cd5f65cb94c7686636dd9f17a3f7dea751136. 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/USX9P1346600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacde963e606c1863060ad7b1525adb56a0cf68201ac0cb239886a652738639ab. 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/USX9P1346601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc232eae965e62c5d55ec59e26660eb4b22c1323690b90902ec77d62391f6de1. 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/USX9P1346586.
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 0xbd79532eaec71ea94cf8f5b601f08ea846a8f21f43fb505b6598852c196eec38. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USX9P1346585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad01852b04c03f302d157ffd10573c7cf9770f5db3d4658bf4699438f3e25bed. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USX9P1346587.
I'm Me (feat. BMO Maine, Doughboy Schooch & Payroll)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030f4829be5c445b82972cd9c3e8143c381309ee6f76637e746879380a1f1de3. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/USX9P1346588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cb78787a738bbca5b13898fc6efa73772453d519937c989b9fb49d7101c185. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USX9P1346590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb453d42f9f59a8caaad34b195e794adf1240b030d5a05bd83b4414b3e2c80e49. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USX9P1346591.
Girl Please (feat. Payroll, Rezzy & Helluva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2d48c8b8f7e426ba02ebc4ab5b8fac8f4b6fdf5ba328de0b1617f35c8ef6a6. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USX9P1346593.
What Yall Doin (feat. Payroll & 8 Mile G)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9506a5e01f359c9ffada53b191a86e38308dd347d00775c7682f946b8a1e3b. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USX9P1346595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7f821c5dfc51232f2605aa089acb03c0803c1b1661152f0bc2e8641fb3a806. 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/USX9P1346597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380963b9518bce11f244cc3c8a856a26a44cdec36a6209cd0d2cf112e93e0831. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USX9P1346602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666b5583c67ba258539aae7e6b2ad20e49095a1d4d05c8a7cd026ae0cede2922. 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/USHM81432502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2163b590a8e3cb6b4311231d6e04cbc61e279dad671335c35b803523c5c0fd7e. 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/USHM81432506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6726e61bb388e2911728ab7630af5dc948b2d61f792fffa70ce58b851eb0c125. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USHM81432510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4fa49325944d64d6f270c3e8e21deae8a8fb8f2772a056e53b6a540c7ed22d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:02:50Z), 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/USHM81432515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6db92e929e61c0acfec6904aaf3d2bd7d8342586ff3d92d81da2ac8e44e2a9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ9JZ1749363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fd62fe869e4739db04f61a6e15c80fad805f02f861e14408ae4e2240c7225c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:58:21Z), 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/QZ9JZ1749368.