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 0x3e80ce11a1c4902a7cfaa456b8faccd66c06003f09f2070ba733bf588c8affe7. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c11234e-5a21-4562-9787-35a303f603eb.json and https://artists.proofprofile.net/proofs/artist/3c11234e-5a21-4562-9787-35a303f603eb.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 0xe9ce2ce4218b1f120792d3ccd05de9a59530daed2fb3c7e3343f28275149b9a1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM82224084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82c3a1015c29120b5fd8e9afe8104b3ed856891b551e141ff2c1e1bba6d2311. 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/USHM82224085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05710b49c1008dc3c6d2714ec2eab0471cd3b0d41ea595aabe2aa1b7a053176. 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/USHM82224086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f67b1fbae070c5042f7618ec8f8d15aafa1c553393e557275a152e69509a74. 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/TCAFS2125030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6f4b527e3da81e42fcd138d8e172752552a3828f35d45b86ee4b7c61d32cef. 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/USHM82210461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1001ba3fce05c78c688492fa8402189fcd8bb038dfb24ec8783700b27926d3dc. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/USHM82224087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76781bf92a38c377d5ec530c33d94949457046840ba121b4c405ab802390c907. 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/USHM82224088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f982a01c738365c21afcf023aa5823d18e24140bf7927038e9ac7411127884. 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/USHM82224089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e920802fe3115daa5fbd3e12ab9329b1da3d8593f86f84a06fdfdaadd2f41b3. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USHM82224090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb208433e76ca20cea98acbe669157f86a25d859b0d1163ba70e6a5feb44223b9. 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/USHM82224091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b53edc5befc5ed17ea202002fe3ee2342ccbb4fe340cc654dc90978ec27561b. 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/USHM82224092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1331c90f8be87733fcccd124401fcfb790dc54fd805c68ac760a586a557e46. 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/USHM82224093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04c17ba1ca22ee476c844f6953d620a70680be72f982fb0619bc94b9ef36403. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USA2P1703266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c436f8a548657dc51a5c9a7a7e9e1a812273eb2de40b1e7adb29428782b088d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USA2P1703271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab68cdacc9474801de3893bfef70a22e4b107490b77bfd4bfa6e5fd6550aef7b. 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/USA2P1703278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e8ad6b05d5ae471f1e5c6dbec590ead524477746b4cc6bdca6b0bebaa7e0a8. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/UST8K1869806.
Roll Wit the Killa Beez (feat. Armel The Great, General Jihad, Skratch, Ramith, Shaddow Law & Supreme I Self)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fc60c208340a0631dc457b8e94fd591fa38144b5254da17ec2ee2a68a39ebd. 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/USDY41942968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef66d16951c1b42d9bc2bd816bda8526134e5076c6f86d3c60359462973f12d. 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/USDY41942971.