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 0x803fc14f8cea9bfd60058fb43333862ecfc2aa8f8faf502b93562654a472e076. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5464635-8d93-4f5b-add5-9cea3a960af7.json and https://artists.proofprofile.net/proofs/artist/b5464635-8d93-4f5b-add5-9cea3a960af7.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 0x3871424dbb0072fdcffbc9504a783be8a4f86c7da5d62860aeadde88315fa49c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/HKA372200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b94d95ac3d43678188f262ea496f95e76fc59b6f47b11d66fd417d1fc6b57f7. 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/HKA372200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb4757e00d989e8841d40ac86ee7901330aa341ec867c8a741a15289046cc2d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/HKA372200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dae18962d8d3c73b1dbefb3ba50ad4c9d025de8743b62aa171039cdb1b9dda3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/HKA372200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4a99173cca7902b8c5b9babfad960ef54979d9493b3d0712c13a8161aa0e6b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HKA372200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02409764320c546e5973d3b676cc1d9f3e5e0760e4c072e773c53cf8496bf35. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/HKA372200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d3425134f1aeffa54da321987747b436fc05efaac70e3a65ed7541eb3cc944. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:02:12Z), 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/HKA372200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e41c42c2fda84b496f17e6113f5e6bd8fe20adc85f39da1e662353330c4f497. 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/HKA372200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7bc91b897e9d2cb9df164cebaf4f7356a2316822fe540f1303a3408a25ed7c. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/HKA372200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300d19113f42f8d5f75767beb17a0453404c8fc514144e6e9ad24bc6be79efd8. 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/HKA372200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617d5ba9b8a3a44f1d754978a2e67342b1d54fe68bf372332f60d2dd085c000a. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/HKA372200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b6290f7c60713878c2e6847e37b299e21646fb640da9da1426e039f18ef4b7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/HKA371801353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e6611631ec4c458c64ff79fafd2653188aeac7bc44f3ce3d28bc58e76c223a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/HKA371901302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b5f9240d854f6e2dc8d60e583169ef328204079236f2bd5995e094214fd695. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/HKA371901305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9c5863cc48697c3d75c02435dffe610672549ee9beef718defcc58c5364c59. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZES52071970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37ae2bd2709700ab0d70fd5315c5e7299f3e174f659b4624e72cdec674348c1. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:01:37Z), 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/QZES62057875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1022cee5165f80608826b19e291f6baf0dafc519542e7186ec499527632cbb6e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:59:21Z), 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/QZES62057876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11850d7dc44bd309819c47cbdb1c0b12f6605cf562fb05e087f84d5badadc601. 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/QZES62057878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee405945ffbc1da4fcc20206c9ddd328478296eb200d187cedb58dfd4410f4a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZES62057879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f25205cbc18ff797e9bdee705f8ad543bb40d574579758f9b88eef78cb92a97. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:11:22Z), 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/HKA371901501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0891919c00ad359b623ff0e4008af49e181ec652ba2a7c96cae7db186f92455. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/HKA372100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda15a8a5d32a48fc2d1036af8ac717752f5e0eec56efda08d6d0f2fa7952b69e. 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/HKA372100005.
回到愛你的最初 -台港青年團契聚會現場版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e89720a1ded2fa479929c8bea69d15a9aac3d82b51eb9505c36ddf671a35c5d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZMEM2537463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b23b33c03c38a1bfe38483d9dcde0c45f4a67dece839af03001e7649121006. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HKI032300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b23b33c03c38a1bfe38483d9dcde0c45f4a67dece839af03001e7649121006. 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/HKI032300018.
救贖的聲音敬拜音樂佈道會 2024 (香港站)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb89798e555265c05bcc6ab3e19c5411f1d95ae661ac03e0ff8d0be2fe944348. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/HKC992529714.
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 0xe99063f4e750889b168a94d2f4eabbb9983ebc985128b0289d1e6fb44c8fb3fd. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/HKC992429703.