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 0xeee122d1d324df7a81d69a48fa4cf8eacef8b899a9dbcd4d15c546de41b10db9. 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/28fd6cc5-f53a-40a2-a43a-cc8aecfdc6cb.json and https://artists.proofprofile.net/proofs/artist/28fd6cc5-f53a-40a2-a43a-cc8aecfdc6cb.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 0x71c77a152bce624d49151229fa24bb11e5482c49a4004bfd19ca9969a5ddadf7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:58:06Z), 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/DEZ651319774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c2f149b7f71837296eb3565839f1ac623d119e0634d6afa840b6de5fc65796. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEHZ31300842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e4d1df9ac33c5d65e9562f72f26a89fada3d5beeac0de3aced57dfb4987754. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/DEHZ31400889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ab31b7435cb8cc209e42574c209d431085bf712c8a7e18abdff1ec3fd1934f. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/DEHZ31400890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7aa2c3d7bcd3ac2dc041f2a2bf9a588c70094f13e70e9bfb726dc36de65eed. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEHZ31400902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3dd8682ff84a1b16a35e0c379c1cec375a659fd731659cbb76f68b09f73ae07. 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/DEHZ31400905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d914a1bca7781946dbda26826b95d64e356688502d962fac277a29417a8b31. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEMI31600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a61fa016b896e33c53cbaf2d24ab036eded856da6f395f6cc22682ebb78dec7. 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/DEH741800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3848d9d196787ac66829c27f17ff02b1b489305ba55851f38b1b822474a41d36. 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/DEEC61800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0dae7d1d9e836483fa7506f576a68cd96de352bb107cb9585d6b46858b30e0. 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/DENM91800031.
Who Sows the Seed of Strife? (DJ Emerson Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa048ab1058b90e4d050519fd408ed16c92b2c1db9998468522aaa720a3e34981. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DENM91900026.
Aqua Anomie (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d915a15116adbf4dab96200985a65d0b0c8a18c56b0607dfc424a75288a008a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:07:31Z), 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/QMGR32064421.
Aqua Anomie (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
We´ve Been 1000 (Ephraïm Trenidad Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5865d8521b75aa2382f481a27eb235e0249c1578e0f66f97d5d8250ade5ce33. 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/FIFCF2400018.