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 0x7d6ae6202de75650a011279b7f23a94ec081d4bb5b3d32d9663357ab1d0deaff. 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/0ae4100b-a3b0-466d-8808-1ed2b569e685.json and https://artists.proofprofile.net/proofs/artist/0ae4100b-a3b0-466d-8808-1ed2b569e685.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 0x9c3df3aa7089f664da99e7971208ea5ae7eecf72fb70cb5954c8d4a425f76f93. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:04:24Z), 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/HKG732419237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3f457a823851cf468c2d6d186263b0cbbf1caef0afdd22aa5a2d4a037efa01. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/HKG731686076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5a95724f1e0e12f388af052e2fb97ef67a9b56bf4fd9195e3f0ab79747dc56. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/HKG732402289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db9454e974da8dd78da8611005fa323a6612de2a4ddcb314bbabc1e6e8a5951. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/HKD012419594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960d987bf0eb1242478f634e9cd79fc5a9f1ea244684106526b886791f55ac0c. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/HKG732412835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e5b204e6fba3004f9bf87e6950f210c4d2fcd854a0114c9cbd06a3a918a811. 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/HKC992425068.
你答应我的事（件件没着落） (陕西话版)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c638731950aecbde591331a7da7e2d166697b2145d27f2af79c11f94f6b8a7b. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QNSM12400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74486f0e85a231de54f252c112350fb2f74b371061d63e293493e0e8384c1b70. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/HKG732467426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9be57e576f83ee1df7088c864415117839b507b35d91d25f0f0a47ef66c7094. 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/HKG732465087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe080b1bfa05f73b53b5e5cef1eb6afd48179484c1771c3e14f52d5f6b04460ed. 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/HKD012421320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0bc6ab57e8f579d6eed74861421dafb2bc26d36a5ea37608e3aea18db568fc. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/HKC992724218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaec6eba234246f9c921e84de3ea7e020e82943e808be5fac677046ff8f63afe. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/HKD012372346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe181ed98cb5d7027eb3f9ef7d87932e15e027fe4555c6464c1654f0f6aec2565. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HKG732497369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc851ddb5c547e6df43a3502e375fa1b0d01c64319745bbb3826306f27e6ad8d5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QNSM12400274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5507cc6330ed8311b39eeeb85cb7a8c628176bccc7afe51559d321c477305612. 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/QNSM12402721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a5be3f9d7e564f3c7a6f394eeb526f9cd7dd0500e9d6f57483012345de0264. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:59:34Z), 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/QNSM12400246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba35ed97dd4d3ca351e259d4f98c08b02be8fbe454ae92531a536d49d35908f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRX282527044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6c20caeba191e4414870240fe8e9c4c958c2c7886025144565ea8498f66daf. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/HKC993124391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43455c4904e9651622604e9ba39573e81cd45533f89c6846b8deeeca38d36f01. 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/HKD012506013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c665d4ba19b9ded11c0ceb6beba3996bd6d106093c894783ed4dde1f1a2172. 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/HKD012528969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8e5b4093b50624951549040a10c8fbeb603330e44d4725a804da6e5b44b8fb. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:50:17Z), 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/HKD012530935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62162c51dd3735a7afd7fbdc142dbd59675d9299ced98f74d510b1921da88e2. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/HKE672501050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30365952ab8f56b18ab831538aca3d25697af9ac10d388fdf2316184c7288c1c. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/FRX872596045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058b0a2c269e87f8c1894d06484ea21127fe53d8cb7c6d0185de734651f5c5c4. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/US38Y2597878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d1951fac7c21781609729b12f8700a3216eb679f0091d78eb24a13b122d33c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:07:14Z), 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/US39N2502808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f5f489d9586f8ae2be45072e1645dc1e2e603133366dfd5bf7c32ebdabb7a7. 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/US39N2506616.