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 0x4fd7390edb30e4ce42ead175b6da2baf3789b95ae2a85563f981d01b3cbf66d8. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2793ee3-e509-4a0f-b007-791f36e1188c.json and https://artists.proofprofile.net/proofs/artist/f2793ee3-e509-4a0f-b007-791f36e1188c.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 0x8a6050de24ca046384a31327532b8f0da7742b0f909fcb6ea7876df5b3ae9c58. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:30:41Z), 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/QZNWX2149304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47a0fafd485274ef1542bcd4244f1e83fd6620e06b78f33fa4ed10535d78af0. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZPLS2389553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb53edda3a0f98877bab42c931414d7fc2827af05cd15255f1e911735ee0689e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZTB42376562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc76976397e6c45e4530eb0314931c1ba3fe559883b71cfb92c88058fc1c3fb. 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/QZTBE2302790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b2e735a4fa8beb829d3a3e6d08a72f1ba68609955ce1ed59054a0ad3a39f37. 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/QZWFR2358656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf59ae41547a721c44087f9cd380f8f21a8ecf9e193b94c9993d916da1479a5c. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZWFR2388323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d908d5e181f3e4d1da43d03b707553186584fd99fc9705e375eedeeedd7a5be. 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/QZMEP2445987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30d72f990a7f23df80f8e60212ff0900a85fe24b9feb785c9d57143a31cca58. 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/QZWFM2466337.
The Weeping Moorlands (Slight Return) [Novit Terminus Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9e07100b05a3e1cbe8fb455b37d99978183ef722fdbc03208674fca0a34d36. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZHN62569048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a55c9e591be17135d1e5b88d74261d3f9e4ead9d9bf9cf43d3ee749fb37e3b1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6N2552902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5958a8868683b02e488c3be4246e2933adb4f1a8f97b73ef35b787b25a266cda. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZNWT2545877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a62ad069fe9e1a44681a2bfc194dbdc5b9b56404343206fabe383f67881774e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNWY2508471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90963187f6341a027b662b4593da1a4570ad2f7e78a4b886dd80b668f7d7a5d2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTB82537922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86452a3e06b60db943e8c851a658199f819fbfddfdaef51284818e9e68336d89. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZZ762521485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa398bcc833259d39920b640f38444bc5d5b27b2a5e6a97295a12f96d183b53a0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ782595921.