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 0xb83a4dbe1c355ca6a345678af78bca389933dd7f0891e86ced4516624ec32aa5. 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/7fc4cee9-9b18-4af3-9d0c-9635abff908b.json and https://artists.proofprofile.net/proofs/artist/7fc4cee9-9b18-4af3-9d0c-9635abff908b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
예배와 경배와 찬양을 위한 CCM 찬송가 피아노 베스트 (묵상기도, 회개기도, 간구기도, 새벽기도)
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 0x4226b87eb20b52dd3b4afabd932b789706669df04c0ae2a5f031050dfe6e8e4c. 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/KRA382155615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fb6fd944a794101187f7b294cdfed0cacd77d26db540a0002702a35bf2e8d9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:18:54Z), 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/KRA382155620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526e723b42da24731e2da9e1725c88df5209d3026330b3f50e66a1e316f0fdf7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:04:32Z), 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/KRA382155624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58eaf513c48f7895a0e7efb5057d7e2814404271422e6e43bb73aba66dcbf36. 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/KRA382155627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b2e94eb0a02900bcf1689856397b8714d310eb4e8558a0617f0324a690a660. 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/KRA382155630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de370e4d8490f6ed6baf7518c63d76745cc3617f68ca293b5ae2718c8939173. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:19:26Z), 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/KRA382155632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace3e6d04b458bdff7208980a422bbeb919e2d2a294bab3c967d99e3e774b860. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:01:29Z), 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/KRA382155634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36528380479dab489a1fda50f95729392744bfe1802a1c66e0e6f3c97e271042. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA382155637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f6098613095030e8b645d2e8bac6e571578803ff9c5ef602e16f3ee54c0ba4. 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/KRA341766976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7929da2f47e400ede3523e6cf8ccdd24c98a968117c0cf41ba3f15f1933fb1. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/KRA341766977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed6ecd90c041e5c34ed1b5512b9c081a0d458727d7a150b19441d617c1fc752. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/KRA341766980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95415682dfff444d137e285ac338f068d69f1960750831a4c4390a30e7cb235. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/KRA341766981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a1051e5f1b71db4c39a954bfc63056480611fc529d0ff4c8170137382f21d6. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:10:34Z), 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/KRA341766982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba406993649ff68b07d49c283f5be10e24ad0243a35c5a75ec526c0827dd5cb. 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/KRA341766983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66757b526d21a4e2fe23e10526030b3ff17220b657132be441c87767d500428. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:09:51Z), 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/KRA341766985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c10c0da65c347754ab7f62bb6d69879d92c74857d2c86af932160184a0fdd7a. 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/KRA341766992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1a34b3d095c0806ca6d5e0c0da4776b2510be6016c533c8e0f5467e29132ee. 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/KRA341766996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb890c737b6e7c288541006f3576e53976314942fb3069165209cb64672d732. 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/KRA341766999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a4cb1f03bc5af3720a5d03129d80665c8fe8d1ee636083f5aef98725c87554. 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/KRA341767000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb373616507a7e43962698c20719185dfe43d31222e8f2c6027531bcba31ac367. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZF452020325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4520a7db72c66ffe0930b7a8d20886b2ebc6751ce48c409b2c111c48a11e8fd9. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:48:48Z), 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/QZF452020329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38911c5425fe41dbded4ea7f207c68a65122635638ecb5c82aee09c09b9c44c. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:07:31Z), 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/QZF452020330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c10ca57778400f87ff4e2605d06a395af77cae83b649bbd062866c52f0b915d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZF452020331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d29e757cca87748f5675258271e06a5197c48ec7f82d4c8e5cbf6a4767f77cc. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:25:34Z), 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/QZF452020334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c6f620ebc84f70f8facecf144cce27fbd47bb0c0f8474ac92db8df88c4c7c4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZF452020335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd877d1a6e2134698eade5ed12e4557e6b11a9eb09d7e1a52d260e8fe16be02d0. 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/QZF452020339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcba5e1cf365fc5acf8370f7856c3c13aaa8b6fdfd02b508c75467f516b8917. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZF452020345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66639bc0519ec4644c661cfad7175abad138e654074605b9ff67b9661f7651f. 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/KRA382164409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764bb025f7d650e098231be2cf739c28aa68ce14e36152e7b2f54c57019e74c2. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/KRA382164410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6f3c3389f9657f69e334722d058168853feacab3ff9c8f65ff08fec1cd3953. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/KRA382164411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1a2212ea0c8b4a6f6c3a080e0c242f3da92d629610a7ed4cf9d777df6e49fa. 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/KRA382164412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3a0e085ac969442f7def3efe403ebeb173b930b375be224e985a2c15e2ebe6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRA382264548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5054d5c3af6d96d9b14b3f6cccc74873b7db247cd48e10ccd6116f65a44672b. 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/KRA382203533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8498238b46241a5957a7296baac697fd21d34b5a4694f040e0d6f79b41096a. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/KRA382203554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3ef36f05cc850b1fdb80dade05de972730ef8425d0b5a99af23eae6d8d7c87. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRA382204642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1120b3d583e43337454a2789f0ca15355b9d784b65b23554e991d460293b6c0. 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/KRA382204648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5729d9ef035a0af7dfd551be6b8d0e08a22500570cbdd4e393b0fdcd4040b95. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/KRA382205853.
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