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 0xd3ffeac4080b3cd9c3008c65fb8168deba78e1a60aba1a7213da3a4bc259065d. 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/da330f81-426f-410d-8bad-4ae48f11786d.json and https://artists.proofprofile.net/proofs/artist/da330f81-426f-410d-8bad-4ae48f11786d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8812d9a7c0433e1543924230faa609a694c608548cff68c54cf5373969b3286d. 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/HKD012246661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f19b3f922003b777aff1726b6dea2e9122fb61ae1bf848c5f6fcd4f06c3ff6. 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/HKD012246771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8489bdf5e9c92661fdeba65ee356319f62dfc77508169541a6cd9fcb345c37dd. 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/QZZ972312372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4387aeab4146cc4e5a9a8a05368e9b82af643e41657f168636e929dcb40d6a. 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/HKD012246486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7ed4f9fd7097d3ed4236f3c0007f630672bd39c423032b49c398b19b885703. 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/HKD012246510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9b65bd5ff0898126221ff04db24be0a1347e25d5de5e3fa81afb677ce1e329. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/HKG731615132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5864b62a32f2cef51b1b416eb1a8e570a240db92a96bb277a3598f1cba6958d. 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/HKG731610863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35704633420ab56d4c4315c6b6aae0cb4c2370df6456fedc544c929d96c8d3e. 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/HKG731615130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1639cdfa25d4d94b7f0d8ab29f116910f021eaac3b38bb04d9a1a374264cd2. 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/HKG731615129.
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 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/HKG731615226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa403cd0369c9a4aba7d036881303c212669711a5ce9aba173e0419d24fa57e3c. 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/HKD012209172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e452056e9b5064f91f87f7d912625213e1ee820f176e11b60ec29439bef21e2. 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/HKG732211940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc938c77d5ab416d624c6c1dd4ee5c69e326724aa107e03a79c47f51811e0fef3. 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/TVX012402155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892204bd18066fa962b2be61a85061c6014a1d32872f1a1577d75743f8f728d5. 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/TVX012402268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb674ea1d5abb6e83188bf846d46dc8eddaae857298fc270e5c6b6595cda9cc77. 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/TVX012402284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09c20454cd32c8ce440160b69647d0b2aef65440c2d8987d2673f6fb6e8cd63. 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/TVX012402313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf775c1cbbf842c761a642e8ca968a133b1b5b36cfb2309e256643ff3ed55f29b. 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/TVX012402156.
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 0x444bcf0696930a6223ab7ada076ced7fe4a7096f8a96d4562d4b34084ddfb3f7. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/TVX012402211.
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 0x3ac2dfa1c73ea8d3f7c02a1c4be05deaf01159542f77e394b80de9b64c001cab. 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/HKD012246654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7c6df5b36cf5c9295614d7e194175bab18576714c82fbec004f5bcfe20aef7. 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/HKD012380294.