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 0x9427c595bc94e6445b6b367d1a8fab05fccaf85dcd5b0d68ed661a2dbf814c91. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6513a806-789a-42cd-9b24-346749ef83d5.json and https://artists.proofprofile.net/proofs/artist/6513a806-789a-42cd-9b24-346749ef83d5.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 0x5d935c6dc724fb91a41530867fa4872af089240ec2494b1ca3b372c16972e211. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPI82401788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a96f8ebf73a9734d0489b20e7ce8ef44bbdc324e4ef45198870407dfc7b6df. 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/DEPI82322421.
I’M GLAD WE DON’T HAVE TO PRETEND TO BE FRIENDS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe890d79ae31b0bad50033ff22ca0c2c5dc289b550e5b7fecaf9c494135c3af3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPI82411736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c6cdc3476871acfad1ed66854976898fb34c32d29dbc84c7f5c80f5c6c80a5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82411737.
AFTER ALL THERE IS NOTHING REAL OUTSIDE OUR PERCEPTION OF REALITY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d935c6dc724fb91a41530867fa4872af089240ec2494b1ca3b372c16972e211. 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/DEPI82401788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a50a14808be01fd407bb48a9ef5dcfe292138fd58f83dbea899fddfc35432ca. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ATIM32300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97d4fa93437061dec131ed226830a2beac36b8b96ab013592d452925bfeef8c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ATFT62000172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845be7fd1df7fad913ca5cb1dac1d6b5037879e3a850beef984d73314fd038b1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZTB52236362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a156a6cd542ccb4a079d3b00c471dc9b702781790cb9472693769a07c25bc6c. 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/QZES92288118.