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 0x5c9363d631f6f5db6e5340b5a66d24832184697d59c39b3f03680cbfcfb713e4. 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/7d5600a1-cf22-4e84-a2e2-74fa47114a30.json and https://artists.proofprofile.net/proofs/artist/7d5600a1-cf22-4e84-a2e2-74fa47114a30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bandz (Bye Bye Birdie) (feat. Lil Uzi Vert)
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 0x332b641a30ec3390bf41458b39c28eec3a44c0d122ec284a4dc4fdd55da54dd2. 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/CA5KR1819019.
Bankroll (Feat. Lil Uzi Vert, Playboi Carti)
Don't Play (feat. Lil Uzi Vert, Lil Tracy, Yung Bans)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb725b037379c03862e7179cc46586a3ae6c0152ee8fb38d4e66fa583d451425c. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/CA5KR1828144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332b641a30ec3390bf41458b39c28eec3a44c0d122ec284a4dc4fdd55da54dd2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CA5KR1819019.
All I Do Is Splash (feat. Wiz Khalifa, Sosamann)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40f2de2fb56817f60ab4f5d432f12aedbfa81bedcdb3c2446ffbf8e6ec26a23. 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/CA5KR1828145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77616331556a8bc03e010f65f59a74c46ad9010276c484bb0f40c6e27736908c. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/CA5KR1945940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037677e854f605cd85cbc7dca2c1d4cc19542be86c168ea80345e7fddb9e92a8. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/CA5KR1980692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69983b962daa529aedebe3ef08c3528252096a91a7f564c9478cc5b3e20f4d85. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/CA5KR1980693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8075eeaa5340360dc08ce16dc26446e6e3890b237927b032a7237291178f978. 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/CA5KR1980694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568064fb6c34fbcb4bc33609889427e5e53439b987d7dabe5dea19938cda1774. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/CA5KR1980695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2da1d2cb422335946d9e9886e3b85aa612db812589b7b580435a8b2cc229b9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6L2507805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ccd4e3f04a60066b22ac720c4447aed03fdbe9249c690db92513ce2aae424a. 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/QZK6M2586475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfdc809a9de0f35227f3b7b838c20265bbf5cc0a63c6364408db47c6c14cf93. 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/USUYG1228983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326e1e62be84ade73316bee51b2c6f6fc0bd7bb1b63b9ab16224e5164aab0bc8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZK6G2388609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1358f9fc40c66e84d05c8f06a3b8d33ff8ad3a3e6c9930226cea553c9d573e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZK6L2318232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf389670489e57345e380687a7c06a6d420c3539aeec24b638864864c7d785514. 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/USUYG1301457.
El Plugg (Intro) (feat. Papi Trujillo, DP Beats & MexikoDro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6340f93f93c3d293cbc789d0aeaa56cc5057b41e86533bc3127ad86d6c1d002f. 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/USUYG1210917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d92bf3fba60ef6a6554f683d1d47a2e7c51d71103c0c3374ecfcfc1ca942720. 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/ES71G1876098.