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 0xe73b3a40430f5f2ed0c559d84c5195a3c33159e7fca686cccef773dd68116af3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84493134-9392-4a7c-b46e-c8bf75fb4b28.json and https://artists.proofprofile.net/proofs/artist/84493134-9392-4a7c-b46e-c8bf75fb4b28.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 0x290591e365178daae43883b7ac6dc9958d0172f3d342dbaeef9b3922775ff0c2. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/MYKS11050123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42cbe3019cccbc96dec506541319300d358ed5c591f1c85c79373bea281102a. 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/MYKS11050127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadcad0482f8e2e7a117b1d1ace9d8543a4a5b6c2544de92708d08727bf8860a. 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/MYKS11050152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6727cc5b97c1cf99e6abd6e6e461514b888936f23e9cd88c378ca8ae2b5fb8fb. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/MYNS11435384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a0730d972283486770aec0f8bed7d1f70cb512ee62cb938d14e1274117cd47. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/MYNS11435394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a83ff3b5ccb7de8d3fcba96f5d430f96fdf462273e716dd89c366bc01893e07. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/MYKS11050753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3883b57b6aac420305bf04fff2e5e87ca293fd07d1b1054a043773d838cd8f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/MYKS11050932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c98dec47a41c189f0b940b0e934f43376d3f743be3cf97b991ffc26a65659f4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/MYKS11050934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227cd7c06cbe84de8f92d4a006a06d4d54a57613746c3a8f9162baf82a0ae3e3. 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/MYKS11050935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee03624353dbfcb43268d05f101b64bc187a84b2cd308e094d79c90192975818. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/MYKS11050950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb963cec749ef166bbe13bd1aa780217c7ec1c56b543cc0460e0f8e47120768c0. 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/MYKS11050939.
劉珺兒, Vol. 2: 幸福的我和你 / 分手難開口 (修復版)
靚人靚歌: 發財發財 (廣東賀年金曲) [修復版]
財神到 / 大家恭喜 / 春天來了 / 招財進寶 - 修復版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e64950e0a54ec32e63cc8f09dbdda6f288f863354bf85b1d08007694fb5661b. 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/MYHY11600211.
百萬富翁你來當 / 喜臨門 / 新年頌 / 富貴花開迎新年 - 修復版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f40cc4835269b10b88e19d51fcd0a878002679a107333573b94379f1ababec. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/MYHY11505894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bfeb51537453e2313bdfa3fc611b069041bdbddc13511e5e00d30fd86630c0. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/MYHY11702035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07fdcf6f34c3eef78e2ce866bdcd088a879aa55ca230731d35a22d82bd8b939. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/MYHY11600502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76de4428e6539b5d3c6a0aaf3d00a7243264921a5f3ae820938c2c504769e060. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/MYMT11000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e24e8313b7a7474e97b9c4129bd206a573649518f08f1c6158d45855fcb477. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/MYHY11503511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3575504564c09f52a9d647c052e8fbb22af671ac26ce9088f3242b0d149287. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/MYHY11503513.