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 0xec8cdf80cfb28d1c5561c6fe88eb3736afa845af1f8021143af4e81bd1ab1451. 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/b06d271b-6ba8-4180-b9a6-3e4a0fadc82a.json and https://artists.proofprofile.net/proofs/artist/b06d271b-6ba8-4180-b9a6-3e4a0fadc82a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No More United We Are (Mashup) Rave part 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 0xa7f81666d8e4ee3ca1baa1f3beb59edb8a8fcc1ed686a43639f40578fad2a6ec. 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/QZTAS2458922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa323915b0be71d3c3d3fc88eab2f074ad9673af06e63ec5a6b8b82d5dd89a93e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:44:49Z), 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/QZTAU2408132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88cbdd425a5c294aa309cf1e4301465552ffc86e4deb2f148344663ca0bcf1d. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZTAU2427733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d576509c28752d982fb2279f8d24a609975c5cbb08a56c6b1513031d8d1799. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTAW2402763.
The Best Of Me (Nigel Lowis&John Patton Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22a0345a26522c03a0459204c2b6b21f10221ad440f46e058f11dab54caaaff. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZDA72580504.
House Casino Piano Club (Original Part.1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea05836dc1a90628255349281832a94e926977b8439c37a054500a9c5db0288a. 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/QZK6F2526610.
Desde que llegastes ami vida te quiero mucho Mateo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d42b26376512160e25316ef5df412ba825222a7c134160c2f2204d241500f48. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:21:06Z), 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/QZRP42585649.
Falling Throught Original Mix John Patton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3da7f22b03d4f9afe4aacf708ba5513b5be878bb87643fa8ad9300d76bccfb3. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZTB42572600.
Something Special Extend Mix John Patton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92a522b6f93aba5a8fae2f8fc204b395ee3a82f84ae30c7308ccd88020c8c03. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTB92501394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec71d8472d0787615204432312a3da98faf3ff9672e91a82551d10325559cbd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZTBF2589738.