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 0x10520ab08ddbc535a1ae7ef7e3d73990935d9738c0d5a116a87a38e8eb19957a. 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/40f2e0bd-818b-4014-92a9-385e7479fb77.json and https://artists.proofprofile.net/proofs/artist/40f2e0bd-818b-4014-92a9-385e7479fb77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
滚烫青春（新势力计划·五四青年节企划合辑）
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 0x8812d9a7c0433e1543924230faa609a694c608548cff68c54cf5373969b3286d. 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/HKD012246661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f5119fc847287a6317aff0e5dfba9c78635d0833c7844d1d86600caed339b7. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/HKD012246511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adbe8e87ef631603f37d68d9405299f724cb61ca2e773b4a32202492ffe9a36. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKD012246629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9edf9f5c0cf85818de6699735762347eed81ca29bf28a51b05d4c5a02e3f7e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/HKD012246519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7ed4f9fd7097d3ed4236f3c0007f630672bd39c423032b49c398b19b885703. 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/HKD012246510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5864b62a32f2cef51b1b416eb1a8e570a240db92a96bb277a3598f1cba6958d. 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/HKG731610863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8593ec2ca1a4b5492f07e3fdc97896e8f659de854eae5709a047cb782001164. 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/HKG732309764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017350edc90b9a0224716dc9ffda02f1baa49ea59387c06468dbbe7e4832255b. 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/HKG731615226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5974dd7d8be300d75f5ed1d0fcbe3072821e9c2f6425cef2aeffd68c8c61ee07. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/HKG731615224.
迷失国度·音乐现场 Live Session Vol.1 - I Want You
I Want You - 迷失国度S01现场版 | Lost Nation Live 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6320c99dc9382ca69dd2cddf43923508b7f813ebeb64344eb1176c555eee2fe. 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/HKD012246595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39732fa6a041bb39c7905f9e310a0987ec83fde7267d36e883f0a872b5d31a3. 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/HKD012246491.
很想 - 迷失国度S01现场版 | Want You Back Lost Nation Live 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd9c7cb50550586790518939f29a9f7f395972ab7a23fdf3f8e6ba5710f87bc. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HKD012246509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f139da2f7b0952609ab75bcc3ea07338df0815e9e797100d509d1b8814286bb. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/HKD012246743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b2066da8dc0f7e7e22aa10489bc443bdff99d4b7095ba9ecdf3ffddac3443d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HKD012246559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c5d1925876727d5d553a09667eb4baf3a77116978bbeaaa7108b54cbde0e3f. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/HKD012246795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f521aefde37bc1385247e528341e45f6c6e0702a7d6e90b8f62076409b5a4a. 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/HKD012246516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a93475a175f5145aa46aecf80b7994a03470dfd2d0c19bccf92a4a35b2a01a7. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/HKD012246494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaf8297c4b572ad95dcadfc454646e870fcec435b8edfa1f04e064744d003e7. 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/HKD012246498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6be4b7196425ef9842a0714b1a4e3fb89c6a2b19df38b1ad9a6ef8f20d14d4e. 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/HKG731617134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d8b5cbfcc1efa359f2a69b9de575d8a1ddeb721c0e84e9daf5a6c91f405e06. 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/HKG731615230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe62e153b9e5b55149e37d3a5d0d0528b578adeec23f6421a579b8d33e0fc2d2. 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/HKG731615229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7574eb060655cd61b3ec7eecbbd2f7424031771f9d337e79d062c1d27342e1. 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/HKG731615228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbff990670da413c455eb077cc34519a2a0e50dd607b58841ee7d7b4660d7157. 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/HKG731608161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacf2d86206df06e4790e89a9c49912c4bb59e5cf48f0df3a2652610459961f9. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/HKG731615227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbdd8c72409e07fca6013267279f3d8affd6d0f170dbf0b021206ebc99965c8. 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/HKG731615225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01923cd060c49d87e2a3d1eb38cea6c6161e4779327c5c279373ec11fec19b9. 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/HKG731614088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f226229cf5df0f01475fbe9d096568f11d33fb3d446a7d6461aea991022f6f2. 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/HKG731613824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78f59a7d51e7387e67925bd4ed43c322f0571044f5f36c0bda00272c62ded91. 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/HKG731803775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e0bbf8d4b1ed805d4281e3403829eb6efa50b5d4323bd18369b539e50e6ac1. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/HKG732129953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700a49e0efa69a17cf76f09fcdbdbe9a4aa972e12d572dd7921d01343cedd3d5. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/HKG731804754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3ecfd9c833a2203527657cda1758f2ec6dec5039246850f7c5702e6feddedb. 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/HKG731790822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4829883fefa4f24b1578161f702b578283c2879c45e357036136eb4b945980e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKD012311386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f3c3407478883a0c3c5b69d0ac1869dd34c4dbed81c6cb05ca356c0ec8960e. 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/HKD012311384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e542c8fbaac6c436df426dc9d64fb431f51fac81e0c4369b80821ebb7418e0. 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/HKD012356097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8487951520f40cecd367a081839faab7c4af905476e6b4957356ce742dd29210. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/HKD012359900.