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 0x5c2211399d046400b51c75c93bdfadbe82b65f054bacfcd089b2b17c19812637. 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/b9b3e204-1ac0-4d79-a78c-18429b44ab68.json and https://artists.proofprofile.net/proofs/artist/b9b3e204-1ac0-4d79-a78c-18429b44ab68.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 0x3d14deb036b103446c440d7a51775c2a6ee6ec7603c4c77921d9776fa56e2745. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ATS450500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fadcbdfad843517151549d6d8098099b2a8f24e448f7960aa5e2a543031b1a. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ATS450500005.
Crocket theme - Dynamic Cosmic Dance Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df7a1e3eddde411c8c2bd1c286eaa85fff2caaf4df2e962f01b6a28ea41944d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ATS450500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13563395d33c8f014c1677cc7812d6ff0cd677d2cc207b82f61517217ebde54. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ATS450500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89b86484acb91b693e0936b35e89c8ce52d03a380ab4e4452d27b7cde326d70. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:07:32Z), 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/ATS450500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e18eb2f4bf7ef8396769ddcaff56fc176795e6a4f3723e8375581fb47644843. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:07:29Z), 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/DEBL60702300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5e6eb5b9b58e675742c54fe458fec5d1ca4bee631bd783494528519533f891. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:25:50Z), 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/DEBL60702303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2956cf81c2cc8b0fb168b3a911c316e3abea8d3e1d670d43a62e12085f4c8c88. 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/DEBL60702310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c3adf6024af0cc14475ff0631842af781ce4ea48c6b4225aed06cb445e688b. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/DEX351000160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee845dfd263568135c8536d293afe974c16a929da212edf6052994611274b66. 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/DEX351200201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b658607dfc624e9904555dc4980b35d76c33a11fef85616c61a6e6c22705f2. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DEX351200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198a1eebface8d4e95a6a38a315d551bef3cab4124f0c50f0d094588df5c87bb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ATS459310246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aab5a30c4143dda52a89c7653d5703e8a67ff28db80284056f1ff8b0c0856f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:39:34Z), 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/DEX351400300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d78b4b9498a08cd4a4354182f945fbc3d8db7bde184fc0c5320106003c21ad. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEX351400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b988339c1da7ee1c75b7744cc8a6793dd1edac0993e13c93b60dc687f83865e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DEX351400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1920dddaf5d4f86ae4722ff53242bfa653d7e7290e016617321244ab1854c279. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:52:47Z), 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/DEX351400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b90896a028b4036d8ea116532412c8d124b70696dcfe587f16d51671a0d94fd. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEX351400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fa4b66418f576c9d6befafd440fb28d271249423099e9ad76e79bc4a45c6ca. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEX351400314.
The Cosmic Moon - Cosmic-Music Dance Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2325758208211acf8ef901fa6ef0c9260f16bd7708d2de2a97117dddbafd21. 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/ATS459311013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130e4ca76abe39aae7234e2ab6fafceb3a0f590f0e362a19b59842ccbf54591d. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ATS459311010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d6b92271caa026e4eb4c42abc9fd8585b5e4d9c730b76ac0f683e0753864a3. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:19:23Z), 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/ATS459310308.
Afro Raduno (The Cosmic Music Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fcd3e808fc46de51b246c826eed068584f6a4d636f85efae5626dc52216a01. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/ATS459310339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7503771ddc6bab2a0cb0852387a9967761261d41096777107d10d2708b7d822b. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:36:16Z), 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/ATS459310343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598aae77e15b3b6d114709f7f60984479553b774504a2d156de9589e11463e3f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:46:55Z), 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/ATS459310345.