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 0x68e11bec8da8f1455b0f52b60584acbfe0f238b7ec3f82a08912cf006163a51f. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c90c44b0-08dd-49d6-8f16-d8556dfd721f.json and https://artists.proofprofile.net/proofs/artist/c90c44b0-08dd-49d6-8f16-d8556dfd721f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
邓海琼传统古筝精品专辑: Mountain, Water, Sentiments (Traditional Chinese Zheng Masterpieces)
春涧流泉 (Water Flowing from a Spring Vally)
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 0x623787c9058b69ec0b80f59c975310ba50c154d52d929c817cb6b38a98469314. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USHM91301097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0f83357636bba2236a49a809b671055c1f4211a83bc65f850e6ac9d247335c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USHM91301098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8e063eccf743297f1d6a83b2d528bb900765898f63684c6942f3a91e0271c0. 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/USHM91301099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2750044e5a3dae16ec8b12e2c0996a4d977328c5659df27e77243367d6d8919d. 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/USHM91301100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8164edf882713b5492a933b50b7ef8880e5f26aa5dc09d1296c96dd282e63ded. 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/USHM91301102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9886ab757a601b1fd3ec3ba69b7212ee972c78bdded8bb60f47973aecc4fad2e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM91301105.
陈杏元和番 (Lady Chen's Mariage to the King of Turk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5450f1e861a76a154a96571dfd895f879ea158c4b6cbe4bcca62b11cd1bbb8c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM91301109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96de84ddcd29eb77124ba9f3dcaac0f4c23828f2d683d07ca996e4610b2eba6b. 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/USHM91301110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce12bb8d6001abf1eb761a3cbc999173df76e560ebc245d625e86a5ee56598e2. 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/USHM91295398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f244922707b9a7ae559298bebb65cf2f6ad5fc1b5afeeb56b0a7e6029c6e93. 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/USHM91295404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd8aa30746179c0ce8b3ee9d81e225d06892d08af6d7a5f2da28c268a15e5da. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM91295405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebaf534ab16e3170bd0c3227026d2d72eb4a9efc6728466d763c079748a1c49. 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/USHM91295406.
The Moon is High - Pipa and Guzheng Duet
Beleganjur from Sanur (feat. Ketut Sukarata & Adnyana Dharma Sanur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6149450cb46b0a0b814b0efef79a84aba14fe4d081337252968b1056b98dadda. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCADG1749583.
Gamelan Beleganjur -- Cremation Procession (feat. Belaluan Sadmerta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39297eedec19891a4b78f45ccd54df05122d798c0dc4165033308811c85209cc. 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/TCADG1749588.
B.a.Ph.Pet (feat. Charles Tremblay & Sekaa Gong Hanuman Agung)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032c4b36081b5314a08305b98daad49a6d657bb09077a8a460daaaf5bbfc504b. 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/TCADG1749609.
Tyler Kline, Michael Standard & Others: Chamber Works
Michael Sidney Timpson: Cross-Cultural Collisions, Reinventions & Fertilizations