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 0xf944bf94206f10d2055c2d6561f9672ca8e5eb3683020a961d54c1b49dd42b68. 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/219670b1-2197-4fc5-bf3b-cb899b5d6542.json and https://artists.proofprofile.net/proofs/artist/219670b1-2197-4fc5-bf3b-cb899b5d6542.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
不插電民謠咖啡時光－放鬆、閱讀、陪伴、紓壓用歌曲
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 0x36d2c7d61d9ef8e329a0efead5a4c49f0b9ff1940780cac043fc51ec2ebf2229. 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/TWC011101241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd52f201f0dd15d7c98b792871f5ce541c3ae4f201a53df35bdb999fd6217151. 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/TWCC32008316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25646112136678f3862a57f489d00489543dbaf8596bed8c8af756ff9ff13a8. 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/DGA0M2367944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cf3a2fdcd0e9559577eb96ce03d177320d3ace5a65a4030144fc3681ef32fa. 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/DGA052253908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6d5673460fea1ed51aa6b7318e6570a4d1c70ddd9a629fcb546fdce05f8a6c. 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/FR2X42252763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462f9bc8b3264541b75c8e2ad71e71b222f4053293165e5ad25d6a3e4a177ead. 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/TWAE32101518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf65fce1281c33e09e62417a6f8bb350e753c37907222e712f900c7f73b4968c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:27:50Z), 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/FRX202190097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed89ac4042434d99802b7b654cba9bca3b5ea6d37d3b3bb6eaff98c8c17cd699. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:58:43Z), 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/DGA072199473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d138964216253fb06e857b47e840d7c2d26d97ab27a860d6b95a7512f3babfb. 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/DGA062014804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61525c9353b4aa5202fe468089b3a38c0e5b7be12a7cebae13ad29ccba7ec72f. 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/FRX282169649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf65fce1281c33e09e62417a6f8bb350e753c37907222e712f900c7f73b4968c. 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/FRX202190097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed89ac4042434d99802b7b654cba9bca3b5ea6d37d3b3bb6eaff98c8c17cd699. 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/DGA072199473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d138964216253fb06e857b47e840d7c2d26d97ab27a860d6b95a7512f3babfb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA062014804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c6f5e1a571d33b422d03503b99815e2a242f480c85dc2f18a685ed40481b82. 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/TWC012010371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b50c1064b4f980b6e80c69507be72e8aa10edbf42860eccc66908862238cef. 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/TWC012010381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2348866981a217acc6d307454f2d33094b60143b3da0f1f69e8ebd6db4d3b5. 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/TWC011811731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71aae6aae03894bd9c7a769eb137b1a529412c90420e89a6e71767df3765038e. 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/TWC011811751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f749aaed0586481b2a4fd3af342ac4112da33ccf6821204bd7837866b9424e8. 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/TWC011610991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd1fdda58d3ead2eb8f0f0a8e6cb772997019ebda236df3d453c1fdd5bb8e0a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TWC011610211.