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 0x01e370fa9505127c3f924fe49c4df1c57bf69d53580a7e2af73fc0520fdb7a6b. 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/b1e6c78b-4b4f-482f-8078-2e8775394540.json and https://artists.proofprofile.net/proofs/artist/b1e6c78b-4b4f-482f-8078-2e8775394540.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 0xda6ade792f78eeb751ad69b70d7fefcb49e7e15eb55b1b4ff2b9310adafa96a0. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/GRS010000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aec69188718ce67c7ec34fdf13f530f907691f431ba0d1d0a60a7ec2c2aadc9. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:10:20Z), 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/GRTC10900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cdf8e4181f3ad65cfb7fb487f22ed547e11897ea40f64ad0d709b481aad4aa. 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/GRE010900127.
God Loves Caviar (Original Motion Picture Soundtrack)
Amerika Square (Original Motion Picture Soundtrack)
Kazantzakis (Original Motion Picture Soundtrack)
Fantasia (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43140653ec99be6b6097f7e5683fa4a368274bd06aaa2963a08de6d4f3de2764. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GRUM71901053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96eee93f1756805e09933e3d9ce50fd8a91f9c1479e8cc06b4bb1405fb517ddc. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/GRUM71901054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8905e6a8eebc302f107e5e73109ebf7179da89591a292dfc2ff208d1f5a027. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GRUM71901468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5343a250a0eaaf56cc5fe43e6334b587a4fec59036c7fdb328366d45e12075f. 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/GRUM71901720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41e75a7147e58da9362942edd35303e4499f74ce0dbdeb81340bc9d36aeedba. 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/GRUM71901721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b185dc8a19a3d1b526a1861254009185ff870768c5b3a22001e4698137018b9. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GRUM71901723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3400c06a5c1b23ae135b2df13d7c55b42e91a3762669295238ea71fa0343e029. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GRUM71901724.
Eftihia (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7233daace1c0401a412b15a931515361c05c398d1cb942227b82bc3042bc3626. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:05:07Z), 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/GRUM72201324.