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 0x799bd0d1400204c579e81ca14f91b7c3f7ff1c967ede2440878bb9c0eb42ddfa. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/404778f9-40a3-4884-adcb-2b111a59e5a7.json and https://artists.proofprofile.net/proofs/artist/404778f9-40a3-4884-adcb-2b111a59e5a7.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 0xc2976cb24ac171620990d1f175e88aef49a4a737fc4582b3c56e4143b8f0639f. 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/CNZ632000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d1629ad579ffa7c8b13739603b7d4f610b47044993df3cd024b61307a243de. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWA451805002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444578b336fc2c8c7404386e401572af8c1de1984f36938f3fb812d3bb788354. 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/TWA451805007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef306a0359b3a9ac92387b4e4dffbb2c680fa01125afb6699914d297da04635. 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/TWA451805001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad7e8bf5f76de91833a8671b9c3267804b6f64e59e9292235ca957aa1757b0e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TWA451805004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fee278f67b70f479d371a0aa91056f287c5d1b836c450087ac541012d34209. 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/TWA451805010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aff32d6323a13da7182d781afab5ec6619d0ce701dd4c8cfade53c9d9010b8. 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/TWA451805003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe920074f424e2bc2ce2937fd5acc14cd82b786e2685197dad9f96c5eb7192c2e. 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/TWA471911001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe90c1482e710953e7a8640df3a38de48f4eb5c651051299203f2341d4508ceb. 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/TWA471911002.
陽光燦爛的原因 - 偶像劇「月村歡迎你」插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80920a829a6a33f39c515d498dc4bd6cc792a645e679eb7c0f99feac2a759854. 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/TWA471911004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53191e6d16e17bbfc2962c46ec4778aa29b433021f5cfbb7a21300508c9b49ea. 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/TWA471911005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937d693ec976dbf6f083b435f050f915796feaaf82c64c5761bd91e6983a5fbb. 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/TWA471898002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eff7d87b3fdbbf5fc83fdec507c811300bb9abfbeead31d6828ea2f6786514. 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/TWA471898005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ca967e0dd89818ad5ba24cb3fcb75cda8244ccf40fdc8da55612fc6cca9626. 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/TWA471911009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa442210e4837ef5e56e08ea47b5885d55dae8fbe8d9ee591dbba8cf45e216f3. 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/TWF712100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8ac7c0535c5ca9960722021f54097290f7192b799836e75a1d0613327c470d. 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/TWA472008004.
陽光燦爛的原因 (偶像劇「月村歡迎你」插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80920a829a6a33f39c515d498dc4bd6cc792a645e679eb7c0f99feac2a759854. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TWA471911004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eff7d87b3fdbbf5fc83fdec507c811300bb9abfbeead31d6828ea2f6786514. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TWA471898005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937d693ec976dbf6f083b435f050f915796feaaf82c64c5761bd91e6983a5fbb. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/TWA471898002.