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 0xcb134c1128d0ec699f9756489ed4cdfa4b950cd26bb0018216b200fa94435ee6. 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/251127eb-662b-42c2-bd01-0385e14050e8.json and https://artists.proofprofile.net/proofs/artist/251127eb-662b-42c2-bd01-0385e14050e8.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 0xfb3302d1d92f944f7dc9e4791b75c3db58985fa56d9930d184dd9f1dc47bbf21. 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/QZES62299332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25228e9d62459e660bde2bd3aba30028b85abc06d8f7807d33089e2004031056. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWT2253831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6237581fafe4801d6f1a8684f7b91efa9de1a9e2c45a99bba8200b40fc4f9d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZHN72236838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87be184dcfebb2d097722cfd4b162804fde5082eb6b4759cf1cba6e52534b61. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZDA42344375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647750a4d660a49eddc7f974fcd633a2c2a991ebe3c0abc98d91ef979caab6d0. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:37Z), 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/QZFYY2365890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8102f494b480dc9dae11ca915b8f3bd85ae74b200b50720edf996554c074f63. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTBA2219469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6161a2bdc04cf7ea81b983bd1c4c7f2857ab141bdc5619ec7eb9bf2476a54890. 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/QZNWX2298201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66735b9f0d14315acfa722eb52d695d495ada55e05f772c1bb7f8ceb5c22672. 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/QZQAY2392684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a975a4fcbc1f69366189e9005249c049b6116d1990d248715e5ee90922ef4c8. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZQAY2370420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231deba26f5f1965ba023448f2ff5880cae8489db438bd324344f65354fa2f5a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZQAY2357010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c059491bd6086c95e443f2d218f086cc7f18900b4f63993029991e5e59781d2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZQAY2300942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b6993cbe857513e21e72ccd84f5c8d8abe6cd718d83ac8ac6154aa35ee47ed. 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/QZQAY2371508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672c10450868ee8cf0aa7711558517d2538c30ca8ab7ebfc3199abf5cbfd2f5b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZRP42358574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a1434a7f9a98288fc265cff29d706306a16ca2f14f0f3d02a893dd3228f059. 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/QZRP52308651.
Life Force III (feat. swif, h!tex, & ghoulie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ce249b24fcb3cc4e6243179f5c09668fbd87996e36d694196ef044f5fc8dbe. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USLD91747645.
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