thumb|Jingwei as depicted in the 1597 edition of the Shanhaijing Jingwei ()Strassberg (2002), 132. "SPIRIT-GUARDIAN (JINGWEI) 精衛" is a bird in Chinese mythology, who was transformed from Yandi's daug
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 0xfc4aa164326f0e073d155ec58a7ed8facdf358d9225cce058296de75d98615ff. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f86a4dd9-5054-42c9-b39a-9b0288db6200.json and https://artists.proofprofile.net/proofs/artist/f86a4dd9-5054-42c9-b39a-9b0288db6200.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 0x6b0216727a00134ef77bd263dba37523a2b0fd43ccb1a81a0ca80f47ccb33522. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZES82492135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14b23e26b287c8ab4b182b9b371be43029ff344ada234e1c54a45c1bfc08d14. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZES82492136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ca093f8670fc97d21ca6b952c324ae4db4747395712ccf8b903dbb1b94efff. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZES82492137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ee641eae6b8a4c927a6fdcf4035a4627cfaa6eb5af90b70d08258b253d2686. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZES82492138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1e9eab42071137a59079942f4611fdde37ec97a06e4444fb0b2f52754cb428. 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/QZES82492139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1ba00e09ca771514920a83f1daff2c178519586a2b5c51213e493796e380b7. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:47:25Z), 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/QZES82492140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18bfe005e3a69877650fce581699b729e492e4ec1a98d36e55d1569dd86cd25. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZNWU2587821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5071518b6467e878f61856439f03593438e2f28fdb31338031045adbdda0c2f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:28:36Z), 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/QZNWU2587822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbaee2076a6c93351286f9b08f774622d97b02508d1f4a2cbfcfa188e27c5d68. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:44:28Z), 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/QZNWU2587823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e2a6436b95fe51b1832593be50046c8c8dea756b1e4e1459f5de99d0876382. 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/QZNWU2587824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339cb49b5082fe9ef4b28e2e5d2e1728c05c41684d5a6d3adc91efd175afdca4. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZNWU2587826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7185f7c87a58c12c93d438e7ca739440db9dc69fe086f585968c30f213b690. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZNWU2587827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1535b5b49450a6e94f5839e47e7fad4495a83a5e690d1e8f6a21b23d311d4375. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:25:06Z), 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/QZNWU2587828.