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 0x6ae8abbaf75fb56127988c111d9535b2731dfdc67b5deac9f8b8b0386d421292. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/536a25cb-906b-412a-ba48-dbf52ae5239c.json and https://artists.proofprofile.net/proofs/artist/536a25cb-906b-412a-ba48-dbf52ae5239c.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 0xd52bf9cc7f3e9710df6ec723015b6629fd9e13028003a8bdedb8ff355db86904. 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/FRX202124066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e50d74f3f824d9a63390b0daafa5622b95d572c94bcff90cf4c0174acf4348. 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/DGA062215850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2626d6da1fc63ef4686244f4987b284a943d3866a3d8d2236f77de571a415c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX452231632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b15938ab6d41e484b796e68d050cb16ae417850ba40abd7de91df59e36b4806. 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/DGA062215851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b41c419ac3fa920f2e77618afaec1ae4d3a615d2230783f157210b077564c61. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DGA062215852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee96e7bd557f57a84c19d060ddacfc9b721d03d2bf31e90170a0d149e639403. 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/DGA062215839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a7cbd110e7232ec67a423df97c018f76fabce1afb538ad0b9a127c0f507c4f. 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/FR10S2255411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe507a19a7913c941e482e32cec85cfdbec7fb3015989b2037b3e790aaf837a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR10S2255410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab39ae07d5192dbc9c65e031d0afd062058bc37751dfe0794a86aecafa0501af. 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/DGA062215841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa882d56aec965d8ec59417cea1b1215235f7e3221d62ce96bec56ecd528055d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DGA062215859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe37c49ac983d9a5ecd8665fcc89b7ad1ab9f7bed8c398c5aa3f18894ecaf945. 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/DGA062215861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1433f936e074783e32890ec3639183fe94aba65a6495522e8d6d51b9ddff0589. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DGA062215864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f3e33b7858bb9c1dd81c300c6bde29ca41f39578d18173b04ce196e26f2a30. 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/FR10S2255412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf856d99e25345d73fe17dde80ba7bd175f8c99cedce249b34f333c9b3d8cec3. 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/CARFQ2100114.