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 0x8d96659f6dd841fd9e2befc419f036609f6bcad66f877e1dda96b27ce6c62a15. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1d83bf1-b173-4699-b36b-12c0c0aa321f.json and https://artists.proofprofile.net/proofs/artist/a1d83bf1-b173-4699-b36b-12c0c0aa321f.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 0xe86608087e6d18082060c2df508957ffb89fdc48927648b3ecd71de01d8c5147. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USGNV0701208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096c95ea8de32d65ff2c609dfcbf340d61cc6cbe63a1e2de1300e07c6937288a. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/USGNV0701209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbfa9f7fd1c16eee0fea9b0303a4e5ed638656825ca7a17f86099cd034d5bbc. 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/USGNV0701210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb71def2f54cd22444da33fdd36d134b4ebccaa34126af5c1cd987eb13f966b5. 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/USGNV0701211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1bf490a9ff8abf8b0f94f7fcb61a13cf4de65dd2186981d94de342e9a1566f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USGNV0701213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b42ad67afa35699aed740f6063a68f9e6b9ed958af608919a8d697c75cc64e4. 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/USGNV0701214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c1c64dcccfd184744bd6557cbbbf31f6fe7fe0091e5dab4b500016d9e9d076. 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/USGNV0701215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5f6ab60f3e05deada42af074a73316b570a40c076a24d91aafdc143ef83ca2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USGNV0701217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e568ec2072ac1283d412f33c1e447ea67695db566bfbd67028322cbbad28dc. 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/USGNV0701218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382d34e5dc245cc67d034fe9d4d214577097b405b9893d4afaf47ab5edd700cd. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USGNV0701219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49163c0c8f86346224dc08aedd4957eb9631015d0af8fb8d29faac6113f01e3b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USGNV0701220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33265eedef2f692d8d6b670b91cdd0db9cba1a6ed153082d707898d009d40fd. 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/USGNV0701222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2a13100eaae8df1f75ea92ee0837e80b4f6df6bccd995d55502857b13fc2f3. 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/USGNV0701223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe135b5b688a79d411a28f66c9d096b0530e001021ea4a4bc63d2de8b3bcce9e3. 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/USGNV0701224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711f76b9c4bc7ceff86cbf89bb9c60040ad9354b7302e8b1bb84569fc6693ee6. 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/USGNV0701225.
SouthSide Madness (feat. Soldier Ink, Bozo, Ese Villen & Daffy Loko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bec7d5b62ffa91a2ba178c99983cafdb19a2fe878b3141efc5a2eec09faad7c. 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/USUYG1531796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdb994de740a8cd0721c28f7c3384610e7d238fec6a6c1b83bf25fbbe70cfd2. 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/USGNV0600284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601007bb4b541399c6fb449488f86a2893679d9d00d2ed37cfc82922045fe159. 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/USJKM0713714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b8b7e3e5ab642fafa9b08fba95f9fe290e9a8f45d909fa0f1573f29b405e19. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USGNV0600278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f90b6d22045c774e24cdd286b587c60a11f320a3caeb44ba824e1ede7022d1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USJKM0704223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303bb6abf7e1a59bd7a129edf9fc532a71db65c30a9957634ada6c0d1edb4129. 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/USJKM0704225.