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 0xd0bbb1a62259b8e33382210c0f867f2db7dcf9820f145e785cba10625195555d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5b21d96-59ca-4dc0-9e0d-c48b3774be2f.json and https://artists.proofprofile.net/proofs/artist/c5b21d96-59ca-4dc0-9e0d-c48b3774be2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bout Dat Business (feat. Sean Price & Number 2)
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 0xe076eded6ea41ab5d58901823a3dbad801782b770226b757836a80a326318aa1. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:59:38Z), 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/QZANY1700373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbc8f5c4848c06b88d3e8d0732a691628e19301bd3aab7651280d4d657cd9ef. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QZANY1700375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82718154d3399f8835170683d56fb836d89ae0e35a939e14d50daac2ad9aa26. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZANY1700377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeff1ff3a284b980abcb4c94360f6db9272e59c2170625f34462d50cbc7e45e0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:40:17Z), 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/QZANY1700378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a93c214a967d956f60cb6e935470489df29405c66f5691c5a70babb4171d41. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:12:16Z), 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/QZANY1700379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa548ec180712577cdc7f6dab58e14f60e81287917d8e6a9475f4f0142979d2ef. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZANY1700380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48063019a373be0c077c7fbc57dca3b030c250dedc00154cfaf43740a42a645c. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:04Z), 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/QZANY1700381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb997f6df50e14e42bbd2ed7bc3f4cbcc23241010f5d1c122ff4c8857963bff. 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/QZANY1700382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834185c66de7194743c96e79bdd18e4202a8401e11b90f16878ae399113209f5. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:10:26Z), 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/QZANY1700383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892ae0f194253203439f51d1de8ddc374228e9f9c7ed093580f2b6a2ee6dd055. 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/QZK6P2478444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39831d77252a94e86c26530e1c0e6e4d773c125e781ac2b320d13ce1cd065ed. 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/QZMEM2431792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc57d369a81116b3b42a6f6df3d63cc08dcf853a3bcc785abcb522938c86875f. 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/QZMEM2431793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb193a28fe4bf9fa943322b6db0ab36f155c037a02ee40d3020495edda96cbd7c. 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/QZMEM2431794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a7ae72140dd3351d7b3983930cdd2acaa4617e546f624171f0ea33ee61e685. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/QZMEM2431789.
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 0xe6ac32ed158853e8b4fbb9e6824b14cb398b7c795bea900acd02889d3af27786. 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/QZMEM2431790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f083efe5fbafea938df48c9494ae9b0200cbdeb206d8bb5d2d027911f245da. 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/QZMEM2431791.