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 0x06efda2ec69b9de968656473b2aa10b3b0a721ed4bc1e283c8de94fbc5412d06. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8230703f-a8f2-4fb6-bdb0-bbbdad2f4ec8.json and https://artists.proofprofile.net/proofs/artist/8230703f-a8f2-4fb6-bdb0-bbbdad2f4ec8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Earthly Prisms (Dirty Hippy vs. Evil Oil Man)
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 0x34b71d89b8e935dbcd4d62075de2dc81b5c53ede438c37143170ce6f5d0e45d3. 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/FR6V81892582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299b8d422afff606e41e17fb0211c42fa1f612281bf38a3851ea2f57c05706b4. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FR6V81892583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d599bd3d45f43339d73ad5421dd30a2d6541ba9388f035b4a9753a1d855f86. 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/FR6V81892586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fd3a65cc18b13b473f75f4fddb7d818d8075424fe374d7c7fad68af30accf8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:42:47Z), 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/FR6V81892590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae504adba0a5a680a5368449323b002601301c680edb7f5adcbaf5399858f38. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:42:35Z), 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/FR6V81892591.
God Burgers (feat. Grouch, Evil Oil Man)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615381d417d2136e824b2e6f225d9d3bd1d163e8a9437ef0ea0517bc10e0dd74. 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/AUZR10700631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95cd4053508d64dc051f6bdd3f5b68b948a67612a288e7c445d27cb52a2d1a3. 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/USA2P1828710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8226e4dad9505b51463dfbce247804cb340245852a8ed37be27e0e9f5b4cdafe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA2P1828711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc576edf9f547b4a31bf195bb67df36d7b8cc0a3c245d91f7d67a03378c397221. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA2P1828713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8bb3a5072422351cec002621b51bdf2f4b667ec90a22bf6caa2773c25f16c0. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/USA2P2333622.
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