Cristie Lam (born 26 August), known professionally as XTIE, is a Hong Kong record producer, singer, and songwriter. Her musical style incorporates dance-pop, electronic music, House, Drum & Bass, and
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 0x87a4f1072c2e7d4bea2656c575436707331eb1bbdeac09655b2ea79c54fadc96. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2a84aae-9071-42b0-80ed-4c6803674e7f.json and https://artists.proofprofile.net/proofs/artist/d2a84aae-9071-42b0-80ed-4c6803674e7f.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 0x1426296a7ba9ad85f33c85d39b8635f87f7cb45415bde0da1c82bfae8d544e34. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/HKH142104703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0d6f6fe0cc2ddfd0f00d6d74e482cba53badf4cc3d0b058ed42125a9bb0cc9. 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/QMFMF2233074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5a1ae41d7c6627b63d8151ea8622d4ce4d45e7ccd1175db3372afd1eeac17b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBSMU8021623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0acda3c477e90b87b94ebc89863d995a92bbbebd276a0117cbc566ebbf381c5. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBKPL2200588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba27d201b37f18c8ddc49222ae7f0b5e2d9e562fcf77730e05781f9d6632ad30. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/HKH142004701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c09298d5801f53fa1b8c8e3de9d210f0c065d3cd1e00e341c5e79aee643f905. 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/QMDA62268525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcb8d51a0453e33d6b25fdd8fcf808b609961caaa5f777e2c20cc3a9127b4fe. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMEU32304349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ff1fc54f9b72e1dffc4104052468d86378a99318939e6974530cd91a8bca14. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBKPL2175531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f931dcdd1fd4c25b1c0bdacc940425cc64e99134948b7378d714c20b21baa9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWV32493412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e153c601d3927529274ca99c84e99099418940a3558244cff884f5615dd14b. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QMEU32304214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf196d6a461d5f96e5150fa65eb309dca2155dbecf281630bee7a1b40901baa44. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZZ8B2466645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d51f8b0a5aaf783d272b2a39de8c2bc05f7526f8e1803abaa5fa366e64b869. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZZEB2401215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c358a4d089efa7065394195bc052483089d375bab40b3e8669cd3cf96f956b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZWV32532925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1558e4fda1f990c4c5654b78381cff716e2bcef513e7ec1578e6ddee076fd512. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ8A2531417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e651be954439011cad8a354ba1dce727f059f07ad26e63acfa9e7f63d77db78. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:57:14Z), 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/QZZ8A2572070.