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 0xafab9d3dd468c0dae9c2fae98c32b8fadeed1deceb06cf682f8e35d48d6284ef. 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/8c31a706-a2c0-4742-b369-b203e6d1d74b.json and https://artists.proofprofile.net/proofs/artist/8c31a706-a2c0-4742-b369-b203e6d1d74b.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 0x0c1f1b7aefa3da8433f23a9d938253ef892516827d65568024d597b5a999909e. 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/TWEP72200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185cece34b433d8098d3b7ae4b8d3c6fc03a1ef60a52ce9e3005482180a0393e. 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/TWEP72200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0479a239b009bcf52f3b32caace6d0a5973debc862499f53bf7af5264d7502. 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/TWEP72200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f87d4a589f54403170e217acb44c4baa528f941db123b2a9de4c6ed1f4152e2. 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/TWEP72200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd69ecc0588a13a87524bfcd7bf434cb4147d7101666dba99e6bcb7468f60bc4. 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/TWEP72200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af4f0eef82e334bd7062739786b48dea2eca69cd0e6606425dbc406c7acb3c7. 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/TWEP72200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6011f00c34340bc5ef871ef3d4c829824e25a0bf550abda45c3ad1a15d5065b. 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/TWEP72200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64ca20055dcdaf09e9caf5f4b58beb3398d27d65d9636ba6723f83d6c5f36c4. 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/TWEP72200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52bcac25c9ad0fa12ea60631969cfc7e3a0d81b9aef42197d5cd496be4e3e6d. 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/TWEP72200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a585b596d5f7afbe6bc229feffcdce5f2455d2fd74d04eed45b05f6ad9e34b0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWEP72200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c8cfc7e4401cb0a2df74f45c53064bcfa7da5a5b0b096403097318b3b5b55f. 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/TWEP72200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176b1a0dc05e9561bee2912943bdfef7be4b9bd5bd9de4babe20f5f20e186bbe. 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/TWEP72200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec2c736a8ad2d84038553cbaa3e14083e8dd9f799bc1228f3751f89c0e76d6f. 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/TWEP72200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2ed74656f50a723ff4ac52d1b5f64efc99e464a1267c9de2ac62a9e9580ce3. 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/TWEP72200107.
train to heaven - Original vocal track, 1999
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b1036a6fa1c28e409ace097e02d1bf56e05659a9395583b9d8e77d5bce0139. 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/TWEP72200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30832a0dfa2358bdebd3a4c693ae733c75c8d6304bba429d404a462b0b8ec407. 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/TWEP72200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89806a82b798ffd0022d4276be4d2227fe9f8f46381a2c4103efbdad831d2c00. 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/TWEP71800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba84117cc070da66d7a1d4bcf49944e7967e1f4efce4c10a70456b452e5bd236. 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/TWEP71800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1718013063b659342749c18b02e18317f447e781b57356157b1df6e7bf8f82c7. 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/TWEP71800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286198c0657f7faccd271e0fb886613b2bf8049ccdc24e307f0549ab35117142. 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/TWEP71800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7e345e6290d5989ff82c108955bee2bcceeef60f80d408dda1b8627285427e. 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/TWEP71800105.
Angel Falling To Hell - Refine,the concert Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03094837cf17dfee77c759898ddbd372a9afdb2a82abee62e832f824247559ba. 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/TWEP71800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27519e7a1ad875b25b92b0a86e2c2e230b09bfa9846c9f1689587f26bbbc56f. 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/TWEP71800107.
Refine-Lai, Shi Chao - Refine,the concert Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa307cdd63a5993518a06c0f5b2b6e7b0d6195b7576eb5c6ff937aec3814a7d2d. 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/TWEP71800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db4304ae7945cd0168008f892cd109d3a086f10cfe838465e63f03924a03611. 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/TWEP71800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8253e5c874adbc20a3351bd85c8115fe913526257f5d5d4ef8fdd64292c02d0e. 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/TWEP71800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5f36667a5b7776712d4f522af280d5bd7b472d480db47d6d14595e3821c2f2. 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/TWEP71800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbdd7e4325127ca4d66de5b7ae01d8e37b998c8526c93804f30c3f30c3b3c39. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWEP71800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c8e60ee1b17c79d6866fd84376d1e2ecd50d8ae0c83288188781906cff368b. 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/TWEP71800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f0a0e36a3e006b63ea1799467fef7f90a704eb1c45d33e869fd04f06b64cc8. 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/TWEP71800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b20af148c578f93c45758d8135c204ec602347c8473a1a64c377b022b61ad1. 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/TWEP72000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdc1e328d43ee2d4b5cb816ff2014d05e599ddfe394107f37005d3678a21db3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWEP72000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc5a4c4c39aad69c7201e396626bceeb5ee8de7016da1a08cc0603ce3c210d4. 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/TWEP71900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286198c0657f7faccd271e0fb886613b2bf8049ccdc24e307f0549ab35117142. 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/TWEP71800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27519e7a1ad875b25b92b0a86e2c2e230b09bfa9846c9f1689587f26bbbc56f. 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/TWEP71800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db4304ae7945cd0168008f892cd109d3a086f10cfe838465e63f03924a03611. 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/TWEP71800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5f36667a5b7776712d4f522af280d5bd7b472d480db47d6d14595e3821c2f2. 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/TWEP71800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbdd7e4325127ca4d66de5b7ae01d8e37b998c8526c93804f30c3f30c3b3c39. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/TWEP71800112.