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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cc1c9a9a913f6991312273c8bce563de410ec062ecfbc67ea74e79d6bf7a32. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94e45b3f-bf34-4978-a88b-2c14bf3db22e.json and https://artists.proofprofile.net/proofs/artist/94e45b3f-bf34-4978-a88b-2c14bf3db22e.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd89a2327b91fea421675fe9a96ba70c624b55cebf5b7a026b46989453415be1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAJL2501895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d20e9c5e62cf9a5cd4e5fe99d9d7b19b131e3ef85eac052359052ef294335c. 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/TCAJM2503564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363daca88b73b9fde2ce8bae1dd716aa9e9c8ea0d81b106fe255f65b2cd94d22. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/TCAJL2503695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c47550455eea208349af441f202c977f4e6c267e05c8fb5803ee727a1998b3. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TCAJL2502096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2b6c079789e624d60672d2b8e6b4e11c45ccd0d2d7e6d79c4ecebb8394efac. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCAJL2502713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34f8b2fff0016b49f4b74f7c230896b03024135c77f91d00f26c1788ee4b809. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCAJL2502358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e42444ca5fa16188161051a809e6bf80cd9ca1bdf70c2b65fc4e403342f195b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAJL2502108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ab58727e5e82c5f860d716745e7d30d332c1d48bcd7424633294b5d7aff748. 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/TCAJL2502028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51da03c45fedf487d377435cfb49068d3d5809db650fc42e268ede6e20cd5bd7. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCAJL2502377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09662bf3e3a24bcace8bcc37738983966cbc122aacf0a919d6a341b3204364b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAJM2502880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80674a54409d70a711dffbf3d9d0c91410a22fbf4a66439e8f5a227c2fe75248. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/TCAJM2502904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2849283a7505bcf914a35d01c44cdbef91ed75c434df32cd0189e2e73e909638. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/TCAJL2502952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be0a2e52c4c1ee126da346187d184d05bbaf780310b407b973856be0098b463. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAJL2502997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f1636c6e1fa9342ce90365abf6614a4dc788b495fad3a3f7c3a996e55b8777. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCAJL2503907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83a7d4f12fb2c581973d3a59653319861b42612fead5d7b55652319886255d7. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/TCAJL2504018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6046065526dd0b481810187345bd722c154ccd9ca43a6678570fd806f1596b. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/TCAJL2503762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8178fd52d26abdec6f2534daaba99b99730b7fbbbf08242a0e95f7477ea477dd. 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/TCAJL2515590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859d6b87606c9296ecf8964c6e85057e84cf4a9f49d0e74d329edc50e0ec35f0. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TCAJL2529072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792d58556dcbe87102af5cb6132c5b07f61acc5041c99d7b95d2aecb6cd121d4. 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/TCAJM2589368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8c702926f76b16368505fe2eddd8281b848af523a7546112cdcdb0375c01b6. 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/TCAJN2528347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bbc013b754e1a20f4c8bf0b2596105f6c03efd356db440c8fd5fd855a43ab0. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCAJR2519588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba8cd0adbfcac46447ed48d0b9294ee6ff036a9a0162a2a0d0f42cf70a5e591. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAJQ2519597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f8ec78a9aa4bc385a206c82a92b7380d7177e10824b8f65a7edf93fe0c2f28. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAJQ2553022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c0d16096f504f6ebd5e89e706525417ed7048d25bf9be617fe5a2f06ecd19d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAJS2576655.
Akan Lebih Keliru Jika Penulis Ulangnya Kamu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b61f2a8131ac004353f86c491f63d213c3e665d1dd4d89583dab6b8b562573. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TCAJR2576675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d87faff59c2fd6a6985290781bec6f180dab92efc31072f62a60a8285695b2. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCAJW2542169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdee7a7228e6d9f05557535886e1df0277486dc696cfd962adb1af1da50e7e51. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAKA2528876.