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 0xe047a099b6c850f1ec5619fc30bcad245f5ea55a034de712af4bf94f064851e6. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9a54622-ecda-4047-a34c-17f53bf5ba95.json and https://artists.proofprofile.net/proofs/artist/d9a54622-ecda-4047-a34c-17f53bf5ba95.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb15f9bbe5563718d7427a613be0576e35994c9e41a45ec45f0fb4d2af03652. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/HKG731904082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13db938388e9bf5ef4542bc28411e8da1676f4845a3ef2079644b74dd7c955f6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/HKG732148514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7911f96f7b22624ece1d9af180302e69595527a5161b2559d1d89da0bad3644. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/HKG731760130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc1a892ef5906d24dffc5826f463b417f327a663e2ca63b22541a0dafb51dd3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/HKG731776075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcbe130a682d3107ed572454074859d4c459a66f328e15ceb341af57a7185c5. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:32:09Z), 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/HKG731775936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e056babeffa3a4ef630261c227599ca2179847ae330b195eb61131dda90421. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/HKG732225334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5d6c544ea544f2ef97d6c05625e39fb692c3b1b46ce0fec32488f6e13600d0. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:40:53Z), 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/HKG732225324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f14f4b5e73f2c14f0a65b962a81d34de3e989c48e4071f538e5219b934133d3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/HKG731613145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3a4791e8b2215f3cfffd680f72f94daac77556d122d768a9acc5c82c017012. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:22:17Z), 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/FR10S2417121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf65c2829808fef5c09d9f39f9e7a980b777777d29dfb160866505b3dcf82c64. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR10S2403753.
就算明天有风就算后天有雨（DJ默涵版）
就算明天有风就算后天有雨 (DJ默涵版)