Grace Chang (born 13 June 1933), known in Chinese as Ko Lan (葛蘭), is a Hong Kong actress and singer. She was a popular idol in the 1950s, especially among students and the middle class. She was a ren
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 0x1daea30e9901db532baf67e45f89f1d1bf768416574bb3b1450c2405e402d350. 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/89c31c1c-6ec0-40d8-b758-1cbb50ff3546.json and https://artists.proofprofile.net/proofs/artist/89c31c1c-6ec0-40d8-b758-1cbb50ff3546.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf273eebb3014d3ea10e6d4d3c52f739236e3343ef9eca06d3e9d6542d2e2ffea. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/HKB120700490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0beb7b292184d5358bcfc69e10f521e3bdb1c06b7c7fe40116528b9efe3405e3. 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/HKB120700419.
說不出的快活 - 電影"野玫瑰之戀" 插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2624ff7430b387d05d12578919054041423c8dd616a23203e588c8ee5ef43d73. 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/HKB120515118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f628d672122096eb1b07e33a4498a157a5f4ffa3cb2cbe07628d14e5ff456e. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/HKB120531058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bad7aae7a5df9efe96e1d47a6864cc079fb3606a1c9b8f78384724ae172369. 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/HKB120700423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5321828a2a51e3c9987092950bd4ec2c4f2911dd5efe22689ff0b6dc9648e2d2. 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/HKB120515048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61019769eb13544429eec452b51a9b0b1f31f201246c715088dfd72340ddb0c0. 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/HKB125802018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204315eabd4b48ca8b1df76dd2c728f1cc826a281accb8073f25a87b6990c23b. 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/HKB120700424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fc31ef60fd63b6be06b3e44f06d81d9d95aed8a0d3ebd749efadfb3dd36bdb. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/HKB120700442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb437dcc84af24f1260c10357a4f2f566b9e4b2a1b44d35edba7dad4fc4e77b90. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:38:17Z), 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/HKB120214088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4dc680b8098fb8e8c5d1ea208846e4683a597c76481c25b4a60937ed14b2b5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/HKB120214208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddedfa83b231b78a39304f84ee130d4a85e660d01fb56cc97c252ad7f22ad126. 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/HKB120515018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2624ff7430b387d05d12578919054041423c8dd616a23203e588c8ee5ef43d73. 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/HKB120515118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5a1b5f19f3f39bba3860ab347faa0e46279caa131547c01943c444e38ce9d9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKB120515128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ff9b36d0da38df1fb7c3391f0cab5d0c33640c37e31a1d40a29b9e13815bf4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HKUM71500864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e51b5d13be9970a71e2868f5a365779c56a15b133087ab1dd4e586db6cd6e3a. 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/HKUM71400491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf86bab08b161520087f1ed474d1865b9ae68241c3507a124998db1631ec37dd. 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/HKB129324018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac011a2374917b8b48586f55151ef999cca54b8335efa779f4109980c87e06b0. 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/HKC631706917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4dc680b8098fb8e8c5d1ea208846e4683a597c76481c25b4a60937ed14b2b5. 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/HKB120214208.
Wo Yao Ni De Ai (I Want Your Love - I Want You To Be My Baby)
Crazy Rich Asians (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddedfa83b231b78a39304f84ee130d4a85e660d01fb56cc97c252ad7f22ad126. 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/HKB120515018.