1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x512559993a4693541827e0a9a71d68083b5efaecfef156e07f017bafc936a2d0. 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/65671506-5b8f-4eb5-ba45-86717f0d7280.json and https://artists.proofprofile.net/proofs/artist/65671506-5b8f-4eb5-ba45-86717f0d7280.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Death (Like a Friend in my Breath) - Demo version
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 → block OTSBitcoinBlock must exist at that height 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 0x9b0e5b1fb6596ecde4b4a8e1452f1437a1d32caf175b00248683070ab5eb3799. 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/SEYOK1404944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee190f7f471c53b0298e1ccebc7f0eb8e1ba45de5e9ea0d34c3a48a2a7eed87. 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/SEYOK1404946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6ee3723f22e51229dd8ba5a0d359703e1397e332918e3c032f8e01d9ce0064. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEYOK1405159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb092bfa059f8e5d8e1d9f5e294f15ac338f81fb61aefcdfb4371515f0c0afa. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SEYOK1405162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc36cfbbb66114351babfa54987cd154b486827df61a77fe28dc35e692b90038. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEYOK2320421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd65271e61fd125ad21ed562df923e2fcbac225aa3414169ff7e9b91534ace7d. 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/SEYOK2512709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9579e7f55ea42d7af9813056955982a371b7226efd33b0e0f6647512cf40f5. 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/SEYOK2512710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cc2706a7a3975ce6ff5ad3f6c73ddb7adf67b73d69932e8460d560b56ca7e3. 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/SEYOK2512711.