Wu Man (; born January 2, 1963) is a Chinese pipa player and composer. Trained in Pudong-style pipa performance at the Central Conservatory of Music in Beijing, she is known for playing in a broad ran
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 0xbde9caaf2b5ab7d77f551252d294e4f1281790fa0acae9c9e185d8e3ba6ed7c0. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5b7e7a6-2b40-413e-ada3-45301e0c2f5c.json and https://artists.proofprofile.net/proofs/artist/e5b7e7a6-2b40-413e-ada3-45301e0c2f5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chinese Traditional & Contemporary Music
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 0x3ea90055dad52b1d511751791dc9d5f37d1274629e07b56ed487ed3b8d5c2c20. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USTC20532911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4183da425b290b0d6b351098225b094d05bdfd03ee53f6f0ba6a3569b5ba07. 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/USNO10900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4183da425b290b0d6b351098225b094d05bdfd03ee53f6f0ba6a3569b5ba07. 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/USNO10900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330aedfeb61eab08b3ec11826b41da8dad23836e86a1637457ef606ccfd8d242. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/USNO10750714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f44f27796eb2cf24b5fa4bd6dc78b5139124d50bee1cf43232fd5e5042b724. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USNO10750715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac89b68eeb52151a28c484d59e1058456c543806b81aacdc973dbbc942434cbc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USNO10750716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08feb9c9b5a8b8a85bb31c51ed5ef22619716dc460a9a9eebf0887ab2578bddc. 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/USNO10750717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cba903fcca81c69510fc9d229a186a60aba4bff56111745f88427f7d64a06c. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/USNO10750718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b3b905dbf66d2048e144e01d7e8ba49ff23b243096f27855cb7240bce366c7. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USNO10750719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9288d4541312d15e9aaa6932a918fd27370f0cf4e7c56a97ba055883fdc606a6. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USSM11303611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e083e018d4b22ce2b530c8d35b5294836b204bfc534721bbb5071ebb5aacc3. 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/US3Q50100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650cbe1e33732819e55cdd7aef168de36f0aaf4db1eaef7715ce32d57270baf6. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/US65R0502102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba49d91e201c3874ad6be306a565ef2d2fbe50c4e3f197a6b5c1d2d3c261c0b. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/US65R0502103.