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 0xa291a3b73dfa66a66b37ada313eb09449bd183001681a6d0001aa98bf54a082c. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ea67001-ce4a-495e-ba9c-c282e4b716a0.json and https://artists.proofprofile.net/proofs/artist/1ea67001-ce4a-495e-ba9c-c282e4b716a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Taking Tiger Mountain by Strategy (Orchestral Highlights)
Taking Tiger Mountain by Strategy: New Year Eve
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 0x5fc33db088b4c4bd38d076bce3839055993e56058c0260458bfe0122d39db415. 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/HKI199291115.
In Praise of the Longjiang (Orchestral Highlights)
In Praise of the Longjiang: A Triumph Song, Celebrating the New Harves (Orchestral Highlights)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc3fcda827cf47b09c658e00be3786d8a0c2c21f93d27938c3cfa7ed79fd1a6. 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/HKI190552313.
Gong: On the Docks (Orchestral Highlights)
Gong: Raid On the White Tiger Regiment (Orchestral Highlights)
Raid On the White Tiger Regiment: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b686691fe49f3ca204748ab5fb04639df2d7ac31290de877e3a7a106cae55bc. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/HKI190553601.
Raid On the White Tiger Regiment, Intermezzo of Act I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9007e762f1bf8d2b65384397de2d59903868e9c00928d6aa56e9ef84d1904c98. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/HKI190553602.
Raid On the White Tiger Regiment: The Chinese People's Volunteers Appear
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fe671290f6a75c8fd9c325afac135d24701d1a861736c283aa6282f83f4ae4. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/HKI190553603.
Raid On the White Tiger Regiment: 'Defeat the Imperialists, the Vicious Wolves'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a89d8388ca9147af98f9c0ce2458753a076d7ec7943493e6aeb1b450f96c621. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/HKI190553604.
Raid On the White Tiger Regiment: 'Never Cherish Any Illusions About the Enemy'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4c23fb4086087b7571234a76bf8fda79c20a2feb500f4693a71f369f5c55c7. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/HKI190553605.
Raid On the White Tiger Regiment: 'Class Love Is Weightier Than Taishan Mountain'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7640e1174112879837c2f6ef7136cc05e0ea8435fc2814613581b41a8b8158. 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/HKI190553606.
Raid On the White Tiger Regiment: 'the Colourful Rainbow Appears Over Anpyong Mountain'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0257eca5dd88a220c51c848c67064491b622b4909a36e9646270017f88ab33aa. 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/HKI190553607.
Raid On the White Tiger Regiment: Finale. 'Advancing On the Crest of Victory'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b911f4e3dc6778cf2a3e29628138e9cdabee987f5e06002848c1f2f4f94a2b. 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/HKI190553625.
Gong: Cuckoo Mountains - Beijing Opera Symphonic Suite
Gong: Shajiabang (Orchestral Highlights)