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 0x9cb57228db4676b8e73ff2284895ed60e1aa38e917d01b3b5fa0f3fd8f324cf2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89d277f3-b763-476f-a1c6-49dab1e48af0.json and https://artists.proofprofile.net/proofs/artist/89d277f3-b763-476f-a1c6-49dab1e48af0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
突然想愛你 (電視劇《加油, 你是最棒的》插曲)
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 0x82144d6467ca0c2b7ee9e3c281557d027250b19f0e1b554fc5787433b7ed7e56. 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/CNE221900426.
天地無霜 (電視劇《香蜜沉沉燼如霜》對唱主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8703131245e84611eb49e24c2c18368498f87cf156c291bc92017fb00943bbe0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWU711801977.
不染 (電視劇《香蜜沉沉燼如霜》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8462bae0e40c93269d00f7be4f29cb42e511f14114137daef840fe801cf2024c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWU711801375.
不染 (電視劇《香蜜沉沉燼如霜》主題曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fc711eb2214d080bb75b69f3c10674210edfaeb604bb68f5ac68ccee288a4a. 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/TWU711802276.
左手指月 (電視劇《香蜜沉沉燼如霜》片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0795e981d42ccd9e4cfced5144344cb029a31e6f81020968916713230147ce8e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWU711801376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9588be7c9fb0739fb8bc98a951314500ed149588911c4e465e5bb78feabdb59. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWU711802275.
天地無霜 (合唱版) [電視劇《香蜜沉沉燼如霜》對唱主題曲]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84acaa1281d037ef0cdf0d1d17be3ef03d1a50d395e5d68ece87fed34e14cb5b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWU711801973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bf0096801367495f50e7243ccf4667f0d8c1e9b44bce8d58990d12c2b9db9d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWU711801975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9d8e4512bf9a6b846bac0a9c89f3e3d835143b704b18766d9dc7aa6e2eb6f7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWU711802273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f1c6c680d5ca90d4adfdfa59e625d88e1eebdf903ebc7cad876a048fd03766. 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/TWU711802274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1a3c2b8e81b5513dac2220ae101e8239c0dfecd737b449935225bb006ca10e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWDK51702002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000871a76533eff53f33f8638ee857fe6ffe0ebf8e101fa43a7f0a0e7b35048b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKE672100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd262d6386ab6a446a3b1c87c64e2315f67c20516abc0de4dca6a20e1fca5e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKE672100038.
等愛 電視劇《海棠經雨胭脂透》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01f96c9e01751a2934f45d7ed5140324101cf4d7fb2b44e99dfb5e797148299. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWD251950759.
天地無霜 (電視劇《香蜜沉沉燼如霜》插曲)
The Very Best of Golden Dog: 最佳主題曲, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bf0096801367495f50e7243ccf4667f0d8c1e9b44bce8d58990d12c2b9db9d. 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/TWU711801975.