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 0x5949b1840e90dacda6be7eb228efa13f6b588f72214a7020d59e6fdc68d6201f. 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/dfab3f5d-e505-4f93-ad3e-0b03f716a98e.json and https://artists.proofprofile.net/proofs/artist/dfab3f5d-e505-4f93-ad3e-0b03f716a98e.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 0x31459bbce5c9a44d82f46c555f413bad66c24937259494b5d0922f763851caf3. 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/HKD012301095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695c228e6b37d21ba94953ee78469c14d5bc3a697c198d4995c458f50e1e16c9. 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/HKD012301098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03077d7ad4d042f0b97f6b1c79cbbfdaead33ea53e7540584a931f36968444e9. 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/HKD012301100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b45a67532ae94252df571dd88df4c6aebcc46f7138f768c2132affc0a167459. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKD012301096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb225dcacad1ef871b66dc57562fdaccc84576cb4edbeb54456102d9ee5f6cd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKD012301099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511ff85e20669a258ca28ca202b73b322f01687bdd783ecb8bc185178885b2d8. 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/HKD012301101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7500599bcd9d287be7bc76dad93e6fb3ffab3d2f69f9327ef0b8faa04b0b04a0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKD012301097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99806aed646f8b1adba6d505f2c5804d61b460cca97b22040fb250268030aec1. 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/HKD012301130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dca3484ca23648017951edf06e9c3a38ace5e206174a2401a69d804635261a. 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/HKD012301103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7900119075edac7469e7d2584df5d27b9f099e6b4197b09a0beb361febece152. 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/QZJPM2501123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa98dd1317e29e4baa56828951c83d3df1f0990a0cfaca6d3b48ca7dd34b778a. 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/QZJPM2479826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa282fa5de7a26ce842089973488c345a9433be297c3c27878150f6f6ae106b4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DGA072416716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f84e0def368b5eec72da461669352b8e0861ba727f01cf5c8862099ac42a90. 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/QZZ972373170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ee202843b4ca83be1e8d6e3cb45b26413b734b6504ddeb81b60a208ab6540f. 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/HKG731760325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6ede64399657f7c5dec8d80e1fd62742b8e8334fecca83781415259dc8852a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG731760326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2227608e2ddf941361be640b7ab6eca67e3a286b651731a6e4d99239fa5cc06. 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/HKD012301127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e49d51a40cdcc55ca40c8fe09b694ff4738d85b2ab24e20f107d64dbd3f188. 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/HKD012301128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6de36941255af0486d61d115cc0243ff49d505074a9802b53f47141b585c8fa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKD012301122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870daba4543407f7deaf44f8b6aef63cdfba4405af0c9a6d0fde369536d1eca4. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/HKD012301188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa282fa5de7a26ce842089973488c345a9433be297c3c27878150f6f6ae106b4. 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/DGA072416716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0efae71131267a82e21288acc73185724006c9cf2c2badcedbbc34ceb73b571. 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/DGA062480876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bf2a9b67b3fa403dafe69aaaa28d7b56a1ecae98267914588de0af52dd53bb. 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/HKD012301114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf124a0191c550d1862376fe8d05372b3879d1a2fd217fe99dc737e8a39402cb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKD012301112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd50f9f5f985be634214f4a9b94e1590868e6540d6d6bdb6c469f5b78ddf7d5. 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/HKD012301120.
练习告别 (电影《苍茫的天涯是我的爱》插曲)
练习告别 - 电影《苍茫的天涯是我的爱》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d83237bcc8d6530de70190b7d4ff8b24a82a80add5875c68ea0a59995d48b24. 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/FRX282505890.