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 0xc2237da86352b904d3bc258d567e3738fea8f61ef6bff2a32acad9d29911cb7b. 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/9c6109ff-b4d3-4ab0-b0ea-2f80e70e696a.json and https://artists.proofprofile.net/proofs/artist/9c6109ff-b4d3-4ab0-b0ea-2f80e70e696a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Comando Exclusivo Club Trokas - Version 2
El Comandante Comino -El Encargado Del Pueblo
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 0x74b23bd83c3f4fc5fb77ad647173f2f7f3452492ae4f89ccc82638816546a5b5. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZZ662311910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8510518d8ab1b08c341c8c623f467935df69e5cae114f6109ca6319ca34421. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZZ662430829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfa82a81b6ce5e80b0613a49b84a94e81c940acdc0137b7392aae94f2b054f8. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZTAS2462139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a8426d6dd9f248946ea9da047b11acdec5c3a6f06bc48e83151216cb53a144. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNMZ2450900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05461593c85e823d2d9ffa2a927c284aa3f62ed4f23e5314a27f8843de57d239. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZS642514308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb077f05ce5d24189dc3c66be14c3349cad81872fa2747bdc2040ca1a6f8c55. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QM42K2547249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c125e571963cf240de7d13e4970a08ee8fe5e9844bc9bfb66f978d190d4e98b. 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/GXHG92504566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081e393a579d14287dc2f46be85125c862a5af2e970503e7c73b202df41065ec. 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/QT3F72514898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8b5643998add134db0c2c6a993fd7f393f68c23d32a1210898f4c471ba8a77. 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/QT3FD2532898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1db99088c6005e33b91f5c0e419006b749b662272a7e374fe151e53bb04f7a. 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/QT6E72544154.