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 0xb8dee26fe28d2230559a76ba0401335a9ee21f7b21f83418030f26600be3712d. 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/61a75477-0510-453c-8ba5-c4246f117d17.json and https://artists.proofprofile.net/proofs/artist/61a75477-0510-453c-8ba5-c4246f117d17.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 → 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 0x9771f2ac9d091773cca40b8839488ed0befa6e32df56c8f79c90b565976d97ec. 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/FR4Y31300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4d8a01c89a18bfbd46d7bdd46fdd0e4fb63464a3ffcb1c77e5957e50bce769. 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/FR4Y31400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43eda7eb3328a62273eb00247076fef1dea481275d202f546324cb35dbf92393. 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/FR4Y31400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1452a01dafb51f9ec9d4a50dd496da780c31b17757516c13d7fdd9d4648feb25. 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/FR4Y31400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82810def37d549754504bd418750296f2cf7358b0583833046a4f350f27b05e. 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/FR4Y31400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d48a04135371ffb65d51a90e76472ac9ac39366f0ffbd8e910995cab59f2e9e. 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/FR4Y31000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a2139d716e12319f480592214f1f54a566c7190b5f0af40023db82c2b3ceec. 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/FR4Y31000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc620d94b8e45c2311521f0007783596dc34e4b610741ca87a7ce7d121178c971. 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/FR4Y31100001.
Les contes de fées sont souvent méchants
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad90a7338ce8bc924ceefee7e4b42b58e7fe1dccaf1e8acb4507d880a1ea7d04. 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/BEY930601128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63602f3ca1f031f08b5f405bf0218ca61f16491b27809c4245555e40ef445d7. 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/BEY930601129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2657cbd81551a4cf9a185e13c12051c589cb486e5b9919ae1ed244c4b596df7e. 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/BEY930601150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50737976d3f2c6310a3663c55adb86c5681c7353bf3a014d5cee6a142a18540. 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/BEY930601151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae911d9b91ee335ac33162df3d51f43343108dd0a17a30a345bb965467ec299. 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/BEY930601158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2294f99f374c8ee1ed9465a0d2fa63a0cdce6fe62f1f625466690a2b6a9011f1. 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/FRAY31300001.