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 0x8b2850a6d4f13e7b451881924bd2af3381468e36607b88c3a1a35bf360899371. 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/184be5e3-3204-4ef5-ab7d-a878c124ce5d.json and https://artists.proofprofile.net/proofs/artist/184be5e3-3204-4ef5-ab7d-a878c124ce5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
RIP La Alcaldía (with Tivi Gunz, Haraca Kiko & MC Albertico)
To' La Leche No Son Buena (with Yomel El Meloso, Leo RD & X3)
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 0xf74fef6f04a2d3daa901b8b4b65ddc457345a3e2cb915d52f673f1e9ef5d2440. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBRKQ2576660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec6617a7c0dfbc10753f896d8e496bf3cac931abd1bbb113826de852c8eb70b. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:41:20Z), 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/GBRKQ2576625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf557fa1f3d9f8b06c539d4033b15f0ac970c954cbd503b687b647f54dd439c43. 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/GBRKQ2576687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675f5d68682d6ca5c6bfbcc959733d2b014a153c39e3df43107617acd19f7c88. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:31:56Z), 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/QZWV32535459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a5cb4cf0305e1a4fa960a678244d5d7a1adc481aa228a68a268ee7e2ac3bd3. 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/TCAFG2070213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bec26e5098fe2bbdcd30e897dc954c1b6650b1d82d84b0a684b26c36ac770e. 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/QZTRX2107487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda94b7577928ea50403093e0c8832bc915db979843b3db51b25b946a8893a107. 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/QZKDT2100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c413bc4496ea185e9032c802c3ef33578b961baed2a553259814a8b4a3d26c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTV32244397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493e635989bc61cd0097e263087bd921efc7402967e4b8502f7235786123fb9a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6P42127030.