The Shanghai Restoration Project (Children's)
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 0xc6d597b6169028a210a13a3dc03033019858e3887d7d80bfab6af8f07a4575c7. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d66c449-c92c-4e90-b1e0-0f4b3448c7ca.json and https://artists.proofprofile.net/proofs/artist/7d66c449-c92c-4e90-b1e0-0f4b3448c7ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Little Dragon Tales: Chinese Children's Songs
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 0x3ad33a5d146d5d1c6d224bf08775103c3f544e6ce99813e2d3f4d6cd226c860e. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USAPB1100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf89896758eea8d8a26783d9c7aa3136dfb7414bd66e0a337a72f478c16ed50. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/USAPB1100015.
Sticky Dumplings for Sale (Mai Tang Yuan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2d634320489fbfed920e0e58af48b79ff9e98d7cafae7e4abc71a4f4b0cddb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USAPB1100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1905e044857476393cf5d332c4a5b6980b1a2a0563e230d16ea0de87f6f78f5f. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/USAPB1100017.
Finding Flowers in the Snow (Ta Xue Xun Mei)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0aeb1d41a28f485d3c7e5f2af4b14bce2867e6754e9a7bc8d3994d1609b85c7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:00:31Z), 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/USAPB1100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d95add47f851a73c315a13f2f57aee1368b0fde98474829e1931060ccf3f3e9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USAPB1100019.
Feng Yang Flower Drum (Feng Yang Hua Gu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae03d19471fb07acd3bd1c8f09ac65ca562fa99b9434fecfe4fc3529defac6d5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USAPB1100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84468b44aacf370c0200a353d0429db092ef6f2ecbb9181a90ea86233df3cb5. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:04:35Z), 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/USAPB1100021.
Little Dragon Tales: Chinese Children's Songs (Instrumentals)