Mao Yuan (茅沅; 1926 – October 10, 2022) was a Chinese composer. One of his renowned works is Dance of the Yao People (瑶族舞曲). He was for many years one of the resident composers of the CNOH producing su
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 0x75ce951200b5115161d50921638e4bea1731126ac3fd0f5227d817157f53dac0. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4293c308-f6e6-4e21-9ae5-9db30307484d.json and https://artists.proofprofile.net/proofs/artist/4293c308-f6e6-4e21-9ae5-9db30307484d.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 0x0272872974eee75863e1a3968591f1c155399e5f3d9f3df46c2adf123e6bb462. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/HKA610300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac4920896c2f91c03bc0f42da4b3277be51536909fc89844ac67dcdb548f493. 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/HKA610300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142729fee99d530850f8be2522844a6a6c6e1f293fb336f6b208e4b2c28b5d0e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKA610300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67f0385105d14e5314a637ef55a97a4d13c758963edb042cf3899c9e586e584. 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/HKA610300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a6f95eef5138f10f31abd2bd59926c6cea747134a0b24d9308a6959c3df8cc. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/HKA610300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5938ba9ca36ad8530aa998879330072080b9746d9add2598c9e7372460fb0cd. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/HKA610300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b547a9c267a4699ada48666922413d1dae67704f721b1101254813938840b21. 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/HKA610300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f28f0ae72c578ebbd43ff135ceaedbbc57af277f6222f4b4fc644f49b7b3a4f. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/HKA610300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a01ef8a2226ab3ce2f74f3eeab500b39a943d383d888d1616e7ca457bdaf31. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/HKA610300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c38a2cacfc6165d3b394fcb7bd22aa76d55d257f0a1ebe5cb34a18816c1955. 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/HKA610300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02216a8338c2f1d43c95cf844cda058e1d33b7de5df9c6be415598e08c8d3fa2. 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/HKA610300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106c15ec09200eba115ed8b34a4ea96db90bd7a8d1a9328dc5537f8db7a0b0c9. 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/HKA610300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cf44d8f1428767ca685fef507da8da4b20aa5cbdcdcaa89f2263412f62e605. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/HKA610300151.
Famous Melodies Of Chinese and Foreign Operas
Famous Chinese Musicians: Ren Guizhen (Zhong Hua Ge Tan Ming Ren： Ren Guizhen)
An Anthology of Peng Xiuwen: The Great Master of Traditional Chinese Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f19eb3c56296e497419d8d48064affbd0040e7e52a7158ccd813a52f89de661. 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/CNF310237410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86e83db0cf46ab835cea38c0e59db7bea8846e932743bc0fa01bedb53528c40. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CNF310237405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3098a43cda381f27d2bbb58d6a9eefda1b03c7279997cec72728bb27f4d5ab36. 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/CNF310237418.
Central Broadcasting Traditional Instruments Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7288150f5c7c5be5351028d19ce4693e07a0ab27eafd20ff21093c998743621. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USSM10403691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f31d5fa8edc3d5c8f0ec2792940af80984782a601b124fc610b0c007036483. 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/USSM10403692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf2941a16e5a36a6425a4bb39a279f98cf9bdcaa6dbed204732dba8391327fd. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/USSM10403693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bf9ee31f350244225dfcad35c512634425e8f139799c9d538005937761fb55. 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/USSM10403694.
Traditional Instruments Orchestra Of The Central Conservatory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1e722cd5757b05421f20637b2ac0994c9e8e316f956751653d008bfe2842ab. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/USSM10403695.
Orchestra Of The Song And Dance Ensemble Of The Xinjiang Uygur Autonomus Region
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5ab007714c5769b07104780d2bdc3d90e6833296525436d783c6fb0dcaa3a9. 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/USSM10403696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76959149f2379b435380cf9846820b7a092c96b1fe3ee6a944eb344b8033d24. 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/USSM10403697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10ac1c6d5c2377c0f3020c8e5c77b724897327ca180d52359ecbbb8fa2e39ee. 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/USSM10403698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fc438ba0e66f946dbd51617ab0fb62d3571285d57d18349231ec4440c5dec6. 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/USSM10403699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df4b1b581c824bcb87628bbdb66ab4b591a898a1503d7c295e801d7ae6c8224. 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/USSM10403700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c65d7c04fb0d353895e1287a40df51b5c73f1cbf6e4a63b87074024f8adca81. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USSM10403701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654a16a7303e7a927daf7b45b44af0578c0e37df9d3c03211f7ac632ad4b4fa0. 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/CNG010201801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3727057170701ad8e2845701e715cf8f1d736248c47ce387d0ab7cee722eee. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CNG010201802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe419d5aab86bba5b3f8a62389ac7e705b7b74e177da461fd49db6fe448cb2f57. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CNA010342102.
Clouds Chasing the Moon: Instrumental Ensemble (Cai Yun Zhui Yue: He Zou)
Colorful Clouds Chasing the Moon (Cai Yun Zhui Yue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f316d5a2ef2c9377a24ea7376feba77c72648dff3c0465bb0eeac6c0c0c9b2. 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/CNA010442703.
Treasure Edition: Violin Solo by Chen Lixin
Collection of the Best Chinese Orchestral Music: Dance Tune of Taiwan
Chinese Music Classics of the 20th Century Vol. 2: Butterfly Lovers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c56dcb2627251a7d251fb72aee2fd91a30bacbea135085cf782a4801b0d7619. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/CNA010013804.
Folk Music and Pop Music on Piano Vol. 2: Spring Festival Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642bb9dd1acd517feaa06df124e9312b5d5586578d7843906263dca6a23eb0ab. 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/CNA010201406.
Centennial Classics - Orchestral Works: Vol. 2 (Bai Nian Chang Pian Min Zu Guan Xian Yue Ming Jia Ming Qu Jing Dian Er)
Collection of Hits By Guo Lanying: Vol. 2 (Ren Min Yi Shu Jia Guo Lanying Yan Chang Quan Ji Er)