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 0x7e2148309b962219775759c3073bb6b4aa62aaef28aa1d6ca747d1921275b25f. 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/bf6a4ade-1c45-4a55-a3a7-7e26b5e162c0.json and https://artists.proofprofile.net/proofs/artist/bf6a4ade-1c45-4a55-a3a7-7e26b5e162c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
在這座城市遺失了你 (戲劇《他們創業的那些鳥事》插曲)
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 0xe788ecc125fd8501b19988782f9ba38cb2426d273d68561787ffc128a0f679fe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWK232082530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd5088512fe508eca97fce536d8e739455737985719ae3ef48ace7bc408e5b9. 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/TWK232283130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a828452aaaee1e6a623fadf113cf7788398ab3c5d854e6b598773a7296ccf77. 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/TWK232183010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b11ebe5679b297d2e98fa53c56abb0cca6e0c7d1707e582f71d8dd1265034a. 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/HKD012301179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9017625a561e1e897046cbe6cb0002e235d3ff19c875abc4019009fca9a5f60f. 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/TWAE31802278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157c5180252070d9b048528019128a255f15cb0c56b3c9426dd867e6d424e74b. 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/DGA0L2350018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70a3b71e1973d5c1c2fe8f8ed4cb7d22db1a1c6b5efaa927f4670a7a5ffdb10. 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/HKG732429610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47c0a26d1064235bb16fdaadb1470aeb43ae20d3aadf97a9403b185d0bdd304. 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/HKG732429611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58449a0895653f9054a562b380f8acefc50ee9f272179f7f715be9bb22a84226. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWK231955542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a75df1f01820b68f2d3b98edbb51def59acbbb67ff2b2de5ce851b585963e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CNZ632200620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a3709060ba043db80bbc8f2b04efaf651f9002ccd7ed64c52ce11d3b2cd657. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWK232300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207645925c77c4d6965d93cb4b15a8952bf6a3e0d81f58b4098709122425c708. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWK232300185.
我們都活在進化之中 (STAYREAL 15週年全新品牌主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad18fe8363016537ab9536a7c7b3af598783a71bdc7105ea9108971f2cfe9046. 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/TWK232283400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8e86020099ae5e35b157f50544841b102791abd19fcac9c537b525815accef. 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/TWK232182680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b616fd7bb2e983fe476d51e0357f4ca0b0e2927c24e3df46dadae349cef341. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKG732488634.