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 0x0806be0df17efd3e6fb66de83cbaed987e891808e765c256781168262c794f30. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/846e8e7c-7ecf-40a4-a98d-d0942ce064be.json and https://artists.proofprofile.net/proofs/artist/846e8e7c-7ecf-40a4-a98d-d0942ce064be.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 0xe209b07d2166296930ef732e418143ef1aeceb9f800dc671a7d2594cfef7c4bb. 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/TCJPD1530143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc074594e5fa35ca65bd1f227039e1ccb7b64ed70581f0ac4107608d2146dbd6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPD1530145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0043ee55964dc534810d92faed1850918b87d0af331ce10e9dc0f39a4f00df. 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/TCJPD1530148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f95786631cccc01b5cfd666070df0ed805c5fcc28729d22806526bb4f5299b. 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/TCJPD1530153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6ef6cbc636dd2f2f71c2a9356e772c5b642dd0c1ecaaa14117d3a4d6646ded. 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/TCJPD1530154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad5dde1d086d25936f2c7056f8a8ef39c557a099ee8e5056383a264ceffec00. 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/TCJPD1530133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb5d625ff75afff60a09230764c2d2ee408fc43adb5b34e2a159d03c19ac97d. 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/TCJPD1530122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282f445efbc5e25bf6476701fdfd55dd0a82d67136545164183657375e15ec42. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCJPD1530124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568e333809522a811a8e9a98ea0ae1567bc4c890f9aee175ec65243ea66344d4. 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/TCJPD1530129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da19ea46c6851abe952c308b5569c148eeb9614f81e1573cacb6293df3f8d8e. 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/TCJPD1530112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913f205228e2e7c9b9cdcbd1642bc2c69a379b1235b6c91c2ee9a0ab5af99eac. 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/TCJPD1530115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc404574e9733aee4252b689f444caf7b6dde6b7d556c9d0b69109c422f60553d. 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/TCJPD1530116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3d7149a7ce17bacb087ebaf1daae64acfbf3b98f5ba64de6a04ac8a1b50009. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPD1530118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6dd20f7a8c3d767de8ce6b1a494287d4b670facaa085bd69d2575426537876. 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/TCJPD1530119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b4e0d0f48a23ace0f7a493d9e41c885da69802342fa45953c2ec1aaea9745d. 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/TCJPD1530101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56a2758ba2114dbced105b97808891d2bdd5f4edfcc5a8c453b2b3a923caa21. 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/TCJPD1530105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b4bf09d1aee9363ee0584322a523f3325618a6a04016111ad9f5199f72d38c. 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/TCJPY2361789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29cc570db739925b2bcc36aabe85f64fb763c09f60da06a3f62ceae1b8b2b46. 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/TCJPY2361791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d97ad7b9ef204a21777b00502e4902455118baa1a4907f0d2acc53a957abc32. 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/TCJPY2314693.