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 0xc91e80837937d7c196dc620787939fb070134714c1f5f7939ce9d12eab208696. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfbfb3ae-0a1d-4d71-b281-287ed99fa49d.json and https://artists.proofprofile.net/proofs/artist/cfbfb3ae-0a1d-4d71-b281-287ed99fa49d.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 0xbba09bb93f2743373df0d53d3f4d40457abe58cc5886c075d5f322916d8633a9. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:54:55Z), 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/BEY902300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0871160e859efa1111255f82336f04f35603276cf4988f7f94f73761deaa7621. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:33:39Z), 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/BEY902300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb6797e8dfa6caefdbac9e98f17251a99dab25d29520e4bc19ecf0f4ba4ca3f. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/BEY902300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ba0a08f68ce270d000caf50709704d7bfc8ada56c0087fc076ab61b89240d9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BEY902300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93943171e2c5ff2b34c74808a5f09e31840d0506baf5178f48aca35abbc3784. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:34:07Z), 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/BEY902300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd502d0b034db26c7922986d1f98b20442c89cc1bffb01660443e6ee4f4f5a0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BEY902300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c5a70cabd675a49075f9537c7b8d22af493e8f538fa6ab0675204b1b3afbfe. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BEY902300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c8c601292bff70fc19ff879439f0c3e2f50af5a7054f4a654ebb2c1de8edee. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BEY902300033.
Een nieuwe wereld – Onze droom begint vandaag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a00dc5d640ab614e8e850f6505316659af8b4ddc44c6c83ef0ff79074b1d948. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BEY902300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f0bde76394a941f4afbf6f90b4684040a2022d1a56964872fe93ce3f0b5cae. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:10:18Z), 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/BEY902300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1b9539d21e6d1b293b63aa1496d1ebf6fcffc16f18a7e176aa536427bb872f. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/BEY902300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2b64643fa90e8697f88c6280bca7d220fc51df160b1270e9c163e34cf32419. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BEY902300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab57a6d085ddff4fd145451310b0c1dd5ee39b830bc07aa4c8d977a624e911e2. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/BEY902300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e7178ae59771d150760e8c106e898c0f40c9c467389ae1d6f6060d589d8b3c. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/BEY902300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165892fb3cb5d955017f009a8d102b01c6cccae1272dd2dd36f522e495d31823. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:52:55Z), 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/BEY902300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ab6d54fbc2e5c6027925c46cef330cc25521936b800b80201a41bfaaf7d1e9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BEY902300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a36800315365503fbd197f9e5bff44a164f9c65904c62058edd06d7a7e98b3e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BEY902300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20873190e7c6999b806b420e846cfdb5ee71be6768e86196a0eacf4ab5a4e71. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:46:51Z), 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/BEY902300027.