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 0xd9a994a46eec766fbff4f881cec375c7d7ea8e1104108066e64c14c84526fd4a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd122c58-c97a-48e8-917c-4e28c2094ecc.json and https://artists.proofprofile.net/proofs/artist/cd122c58-c97a-48e8-917c-4e28c2094ecc.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 0xcb084f887471cd420c4ca6740a1999664e4215e28946e1342739c7df01de2482. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USCGJ0621137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d0c2b83191272efbc569b2edb3f7a790d3448e2917d50cfd7adbf7a63087cc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USCGJ0621139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430f9113abded01dac50d30fa4c23d81db73855c2437785cd61714971de673a0. 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/USCGJ0621144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb084f887471cd420c4ca6740a1999664e4215e28946e1342739c7df01de2482. 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/USCGJ0621137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf031c3ba9824723c4c2821f3d60e4dc2a183063c5467ebfe4ff6b96ff5956138. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:23:03Z), 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/USCGJ0621140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be37924bfe6696ba486bcd983fb9fa985e9936e259938bd42fce3abae0c222b. 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/USCGJ0621141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430f9113abded01dac50d30fa4c23d81db73855c2437785cd61714971de673a0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USCGJ0621144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50366c69e17aa5246a5cfdd2669438ec595e88b21aef5aa379cf95a480a1bc9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USCGJ0621146.
The Incredible Hawk, Vol. 1 - Undaground (Slowed & Chopped)
Straight From The Street Flow - Slowed & Chopped
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fa1f620d904301afa03f639a38a34b661d2f05579b8e9783ad70fbfc21c027. 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/USXQS1102422.
A Bad Azz Mix Tape II (Slowed & Chopped)
Hater Luv It (When Your Down) (Chopped & Screwed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32af0e15a96dadd226c773dbbcfc140d26f7d9760275b150323e2340960a1317. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USCGJ0622506.
Under H.a.w.k.'s Wings : Chopped & Screwed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5d2de5401f440985bef95ed3f65c05f012ffc33bb90791b3f92181d792afab. 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/USHM90785339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304431889567c579d04547249689113f6d5109a84c40b53fda58191c948e6697. 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/USHM90785344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953b09a4bf2499f5b996a503cf3fa7ff3d3b2b3baa6912f687d588c3ccbc92ad. 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/USHM90745484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bb3070ccea3ee454a7ff9893601cbcbf7c43a116e14e8ac118f70b91ce00ba. 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/USHM90745499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83c1af37b68d2894203ce0ba5cfa1eb85565ebcb145c329fc5d91e885b2c46f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:37:52Z), 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/USXQS1306481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2501e6dcb487efd6b4e6b5cb9a284d17e530b7530fd39f7a02f79361d6d2fde. 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/USXQS1306356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4400b05ea0d6994caeb9b76d1c453cd8513b4ca7d88c263d196e9b8b2d8c5ee8. 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/USXQS1306360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2797d14b767bba3e320cf8b1c687a2833d5b55a3d72536629383da94efe1266. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USHM80604704.
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
Z-Ro, Trae Tha Truth, Michael “5000” Watts
A.B.N. It Is What It Is (Chopped & Screwed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8c7e91aa1f265dda9c8ca99a57fafecba2d57da7526aa57fdeef98ebf1068a. 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/USXQS1617798.