1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x09e8a6223765b5729397a9a4354cd8e49dccda09fdbf23a755b56124e9e59e6f. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a132b43-bfb0-40db-b577-8f2529b9f1b3.json and https://artists.proofprofile.net/proofs/artist/5a132b43-bfb0-40db-b577-8f2529b9f1b3.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 → block OTSBitcoinBlock must exist at that height 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 0x1acdc00a50e3cd2c3481d485d9db422adb14a25c5373b787d7038a27269145be. 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/FR10S2043316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ba8bc017e3fba2281b1521fd514e5b868168085a6c1f166119c69cd51f2d93. 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/FR10S2043318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b21e3ad13e73899c00d55b6b7dbaeb007a8e0b3099bf6021a88577b6b148c4b. 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/FR10S2043319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88be3b1ad009e11d831e4c9f49f43ba96eb59032123c66fd32bedb4f5fe0e1a8. 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/FR10S2043328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545765a0c02a52bafdae848474860b2b84c80b189ec1c1ff550ad0138eb50b3b. 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/FR10S2043331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa430ae129567277f5d57b04240a03008fb54fa474d11c7daa3fd6b44eaebba04. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TWAN78170001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f02c3ee4e527d3889692cec432435d05073574fc6643bfca4ec228a534e8fab. 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/TWAN78170002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f94c05689c07bf3caff79f36e161239bce2b60f8f10123d2f2d273f9ac299c. 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/TWAN78170003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1e368c56d2860686f9ec8cfabf29e15306a38044ebe5dac29c6d832745d14f. 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/TWAN78170004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1822dd55e06bb86c6f0f2f6dc1d505887fb8298d452f68d90884175faecd315d. 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/TWAN78170005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10123d1292665c8c05857c51dfeb66ef04418ca208a7acd32b74b800a882a014. 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/TWAN78170006.
船顶的小姐/妈妈请你也保重/无聊的人生
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7beac95cf2bcd91659fcfd0f2d7a1d2de5e469d562f43086661301f1d54eeb. 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/TWAN78170007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0c7cdac1229a23666dfc79360b40888e97c0ebbfc106d1eaaee8653932b07b. 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/TWAN78170008.
彼个小姑娘/可怜彼个小姑娘/少年出英雄
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbcce088b5082ae3dea6dbcc78c570dee37d146161fd11c9941f02eec904988. 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/TWAN78170009.
车站惜别/谁袂想起故乡/女性的纯情
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f9a59b1f1b82d0da62a02c36a537973513aaf97a9536b67cf049b24fa35ffd. 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/TWAN78170010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6d51dce448f35808806515b2751f0f4d7cd61250cae8b9ddf21825ac1589bc. 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/TWAN78170011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bc04560eab536120bf308a6498d3693cca3358f60feb3b87e7ad30db97e062. 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/TWAN78170012.