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 0xfd679b9d1b1f478c42f3ee922365fee12587ba174f0ebe620b2f354f7704fdf9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28830d89-f5ba-4083-9fbf-234ca16d1314.json and https://artists.proofprofile.net/proofs/artist/28830d89-f5ba-4083-9fbf-234ca16d1314.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 0xee2cd516edcaaf4074bc2d7c04538fd6fa04543d10b5a842db0d7aa6da2bfb81. 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/CNZ502202114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacafaaa65ed5c786723af04676fecc9ede2c948aadff9013f6dcfce77142c65. 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/CNZ502202113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b359a8a3e5b2604462b401d4e626695fd7fddc1ab370979f420e6cc554d24fe. 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/CNZ502202110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e1eac7a14b2d53ca54bd9fd47d2d06601f12c1b60cfacef941c7850f01fa06. 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/CNZ502202105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018b243d69c5411b8ca09ef698c0c0962750416ed9e05e41fdbe8b8aa5706f7c. 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/CNZ502202104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8f7fc6f4c064f61d8be2aac7d9d28c656fdb995c34eb2a958d0966866dff96. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CNZ502202103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f8a002df9466853ff1dcb3e561ce83ea7271d669be7a1ba9bdfc119327dc79. 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/CNZ502202102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972e5674e1872d81d03f1e13514452cbc82ee8197d8301799d4d01145eb2f702. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/CNZ502202112.
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 0x518c948c5930111cffcc8a5f7bfb3c2ac56923f49c5784f0eb82edcc39a4934d. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/CNZ502202111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa00f93f19cf41ef1e6f5e48d3c6ee95409100e6262f55b89780a55a2fa75086. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/CNZ502202115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0372c4f7f75eb5a7b98b8c890e72222e43ccc96ec266a3430b316b13274b47. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CNZ502202109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8ba67a82276073127dd081ad2e11a4a5c7f928142241d179129205446ae282. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/CNZ502202101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b7e62f239700f77ab9cf9606f929d5c114b63fe103de2e2d3d872ca01c956e. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/CNZ502202099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb252ccde9709f886f8ee114b689fa1796a809cfb9ad41add2848f2171749a6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CNZ512100590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb77579a3b13cdb3018fcc750f69baded0c308a90a1b4d838e5e185921a9a120. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/CNZ882300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b13d5c8a23f0c7ad95cb16437025346261a5549ebdf19e2588793fd146b5376. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:20:49Z), 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/CNZ882300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8937b0ca87376623f2d0f07aeec91d7532273700ca6f689b036ff26452e26ea6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CNZ882300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8875f799c94fcea2d0b52021adac5a623409f71ee907e243a44ded8f2c0fa0f0. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:15:40Z), 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/CNZ882300043.
浪险（《2023和平精英全国大赛》总决赛主题曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b636ab03a1f4ee78dd730bed305c54cef9ecaeae6aa797b707573e40b4c920. 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/HKA412300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f137d0920087ecd38cdf1e50dc1f72985a8838a1c625cf2e82636731150f16. 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/CNZ632300687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99569afd83bca6470770c1dc2c9e69c6f1883e8667da1531ae27f3236762902. 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/CNZ632300695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479e99284d33216a74d20e384287230c4adca2393dd4f73f54d5ebf26ca8918f. 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/FRX872155427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a366b87b1321ae12b6d83502bf81ecdc6301d864957ec07bd8ff878cccfaab. 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/FR96X2416293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7598cb25d7d180eecfdc5626d63bb4b84435bb1b5adcebab1d6d66ece8575d18. 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/FR2X42158016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f137d0920087ecd38cdf1e50dc1f72985a8838a1c625cf2e82636731150f16. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/CNZ632300687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fe075ea216a8a2c56dfe9287cb72fae0c16e81cd5872f669f2c85e8d897a6a. 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/FR59R2469702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec1c9135bba83a6288cd8960eff74ab65652c51d78ac3587dda62e5234a0804. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR59R2469830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b491773b4ca98625983ec725f0aa1162f52940d84d5607b7d8f694a7c6b941. 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/FR96X2415240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab1b1f55bac92640353ded2176d5431a219dc098b9283fde9ca021fa953538a. 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/FR59R2469651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b7b0f0491df9047f8ab99f7a5b03cc3c0674ff23605f49adca0e0393340a66. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR59R2469660.