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 0x59c2975308e9879b5f89a788451b6ce571d7c0c97f908bf49c912d0c45fc6657. 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/17666293-a9f6-4f12-97e4-9a69ed296672.json and https://artists.proofprofile.net/proofs/artist/17666293-a9f6-4f12-97e4-9a69ed296672.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 0x81c1ff9f83c8bdd0d25ea0a900c6b0effde15b468b65b0978967f30a119ad57e. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USJLL9920002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ed90558a7edef17926870e97c6a3591f2a30f438ed884c9fa336d736cbda15. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USJLL9920003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e7b288a7bb9c2c33d11bdffa6c727588b11e891cb6077cf7198f72c44ea1c1. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/USJLL9920013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdc1b12af6401cf24510faf414513bf487746d2ce959f6d5cff2f44399ace62. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USASN1601592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34047bb386f29c22aa26ed6753f3febc61ed511b74bf5ecd7146e86957ac7fd0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USASN1601593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb48ccb6a5ebd8526399e6826459bc9948088aa3523ed0df80bda9ee3103ff8. 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/USASN1601594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5179347f1641afe5f66e06ffc767336aef2c0b1f1fbff5d6fe6775a802891c0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USASN1601595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf363331c0cb189ca4b5c527cad2b32de30009fd5d406ec74dc2c8d6aec4ab9bc. 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/USASN1601596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8698b9d84ee47353bddd5ce203deb8bea39d4c8db43bf72bed6de382768f50. 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/USASN1601597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b2eeafcc51516ed68bdadaae2005376fd69b2c3d42c1a669973eb6769c1be0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USASN1601598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399386eeeb452c0737fdfd961bada929099f2b365104da8d54a8c2c1440f8fd4. 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/USASN1601599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb3d56d50285f136b14897d14be817b81312535c0249308aa1360c4f4c5b222. 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/USASN1601600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f0e395081fee0933fba7fbfb6e6356be100f28989d58fd940e5adf1fca7b5c. 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/USASN1601601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d67ccc5756bec3d57f320a19ddb6a37dce1d6d1369b17e844fb2f319e4bb63. 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/USASN1601602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2cd452afb7979ef9157e6c56e12c450b4ccd554a040e8d081e12c09835b5af. 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/USASN1601603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57f51a5bbc09d67622df4c0c57c85866b716b321164af68a6f335afdb3e6f75. 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/USASN1601604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad1bda150796c5863c8d8bbee928c67e7226100e5eab9cf096ee19495a06d34. 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/USASN1601605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf1bb0b599ccffabc5a4e924ae23c00c282e403e1215fc1a58acdbf65047ee5. 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/USASN1601606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2808c7a38f0940f87816f9419840b137157cab07305504c93b3afb5602a7c6. 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/USASN1601607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e780766b0eb665abbbd07635fb79728e9650ddf5545e5840e4ae5f5caf633c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USASN1601617.
Shaking in Your Bootz (feat. Gpa & Mr. Lil One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aceca0b3d140af23bf2e77eb91280de2d004ea2778f896d5c8acf78e54db212. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:11:02Z), 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/USASN1601624.
Dancin, Smokin, Drinkin (feat. Kurupt & Cisco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699cad89cffd9dfc941ba8ebcd6d6253c2b324b8aedf38bdbbbc2c71f270c8af. 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/USASN1601625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e838653b8ee5ff74350d1cc3d33da65207b1114dc7315862390960c27574f0e. 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/USDNB0229109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6646e4726403ee9f8d394199909c8f6bd2fe0dcb7d82b3a9949eb89536849fe3. 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/USDNB0559801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49422ade3c5e5c7226f93c8503bc8b29b22dece74be37fce2c54519ab99cf9ce. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USDNB0559802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05d0e613be6899fbed51cfc0ae6d326ec80e855dc467ee44a77c9921bc16271. 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/USDNB0540902.
The Streets Are Kalling (Edited Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a2a1518b9b0edffa545ac22c8db5f920958817d1f386762ca9fa84a7dc401d. 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/USDNB0660206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46110669cbe9319fb549077e2a94ef1ecb7c5a131c0648412bc0f65b9bac144e. 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/USDNB0660207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7691739fe9fa84549d473ec529040f702b6c37d5c94ccfd7c2da171681e981. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USDNB0660208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa774460db58be0cbbb1248c924bb43beea2bb1ddd8d9b5a136dea60746766173. 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/USDNB0660210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfedc93addb1831d6dd0eb414f591a5bcec9dea1ad26465a64546fe05972006. 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/USDNB0660211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcff81a37b0dd34aa67dcb2b38d0e53c3a1634b4d7a0bc4f4d59e83d5da3c4f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USDNB0660212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c53929e3a89b4897c5c31b2c267e12510c5579d13153c53466ee50e0888ec70. 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/USFNL0690079.
Mr. Shadow Presents: Ain't Nothin' Changed
Krazy Ass Mexikans (ft. Bad Boy & Ant Dog)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd321c6a9cb1e2147d99c872bfe8182535ddd7a0cc313fdc10389dba4c327db. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USFNL1010104.
A Name You Kan't Touch (Explicit Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6fe668e396ebabc334ed8b402fcf4939f45d2b3c99a02f65a81185ec762f14. 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/USDNB0962911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f39b0bde26d21ff10f5a4d4d11557ef0ae14de14eba05247cf38aacfc47a466. 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/USDNB0246607.
I'm A Criminal (feat. Serpientes Y Piramides)
Hitman Presents- The Best of Beyond Entertainment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f461cda49b1111d142a5a01e28aacad04198c01a3a8de9d787f56535c5a1735. 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/USDNB0328106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c62d7be1e3a1f5cbc46d02400dcf394cdfbda27ff8b059181ff031923b27c27. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/ESA012018902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b78092e0e52529452f3fee1fbca346dc6ddafc93f367974ade4f931d262af18. 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/USCGJ1943983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f776bb95ecbf1d65a8f1f071b4475e1abaaa4c37d611ccd3ad45241773d95d8. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/USHM90442836.