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 0xf134f9d75d627fbdb0ae5224e01f59d5795a1a1e0c141892046cb3724dd3357e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d402daa8-d411-4795-861c-68b96d400a5c.json and https://artists.proofprofile.net/proofs/artist/d402daa8-d411-4795-861c-68b96d400a5c.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 0xc7f00cce70822c588789bf675325c12018d0f53921e1d1ff6db3c76629886e0a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TWA459856301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa711c1fb85e2d5d8516c32fac0a50dd87ca84387a69b12ae698b0f5c52e0801. 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/TWA459651102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a07b9d49036797976cdebe9befd224ec57e06054f1b9f4a001d7d2e231825d. 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/TWA459336304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b520b499b174fecbbc0ec3e8a1195ff996a17eb50246aa2a71b569f18769bf. 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/TWA459443101.
滾石年度最賣座專輯主打歌全紀錄：亂世佳人 vs 新好男人 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80a7f82dce540d7da0921a32370324665a063b64b44ee7eab2dbc9acb17182c. 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/TWB879702501.
東方之珠V 有情人‧男人與女人的情話世界
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c90a296d2c9e48f5728c3043ee49ca686fe7a2a8305793a3dd68924416ca66b. 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/FR2X41664214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd63557ab52898ed98330fc977ba1c9b34dbc8b781e68a1e3f51d6566b3b0b6. 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/FR2X41664215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0f0e929466ee6b54aa899dcdccbebf5747ef299f3229fd4705155cf721705f. 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/CNA260743808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bef9cfd7a69b96a51b0aa3d29fcac1fb3bfbbb7792150d58f93c5a8dc01295. 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/TWA450272401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26f18e8cef69287dd365f608b92ffbb0579d387ede2b2f8c552726082ffb131. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TWA450272404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2567c98e8c527480f52cdfded07067d8de50085c4a463ea432eeb60584722737. 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/TWA450272405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0582cc7cc601d77f1aa6957607aa8b06f38f5953f85449e085e622d9fd52acc1. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TWA450272407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9328dc5f19984d9805eff946941ce3446857f31ac46fd4f884fed30298c4cc. 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/TWA450687704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad0b4ea7f92f10e9b8bde206f21b66fde90466a4769009d7661c1ea5bc139f7. 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/TWA450687705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ed7ae0cf5a550dc2b49a680d8091a6d949ba45c866631afcda5437d00899f5. 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/TWA450687716.
滾石年度最賣座專輯主打歌全紀錄 亂世佳人vs新好男人
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef903b5bd1c6a44c1673baa2c1c942add01e8a57cc0a59d1275a396002ec0a7. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/FR2X41674805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cea61657c8cee1a041785a72d4d86f7fe6cde5a50a971f91dbc86444be8acd1. 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/TWB839547005.
No.7 Cherry Lane (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8ad42f293a520563286355cbf1dd25f4572a702c3d00a07373b023a6889190. 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/USQX92003014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15fc049f1cf46f53ebe066436eb2380edadf05f534e0bb262888d8c7bc088b4. 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/USQX92003021.
情感萬花筒演唱會 滾石香港十週年演唱會慶典 (Live)