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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56237e00d56c74e670fe88c57e9c1d209448b9e4dfb4664a5dd5df220eb20294. 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/HKG731764061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2975016c1fa8cac3d6e600d0c67974f6de90a8342a14d019d0c6028b37fa5cc9. 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/HKG732157046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893cc7002aeecb8851ce2598da57bfce9535f588f6aa4d58e07d13e22b6448f2. 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/HKG732157055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1bfc4249910113652fb45a091b394a33d2cae90cc16bf65184c9a4a6f0c7b6. 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/HKG732157057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf90613adb017218d5ec09b8876d067f54086811c2eaf3fb5b595139a284b4ee. 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/HKG732157058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cf7b337dd07490196b3a3c55e1e5633572c91fab121fe8bab10b73b08ac626. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/HKG732157060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce258ef2197e8528f0de98166b1e03e6071052a5ad967ef55292239908099bf6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HKG732157061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b06cf2fbce379a8d07298498d78a1c0360263566a881658a89a78cfa9797a34. 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/HKG732157062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2558b119ff01c34fba3f02d60aba364fd4e05484f0280fc23ef1f6ec9732a1. 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/HKG732157063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc04e7ba6ddc75257947ebb5dfb7fbb975d46b892ff54ee56cae09dab1816d90. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/HKG732157064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ac813fcf7628732b72fead455ab7de572033de72d5e487b078aa06cdb89999. 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/HKG732157075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec23f2fa888ec6f904092245808bf93fc9d551ade8fc78756282264e4ada5282. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HKG732157076.
燃燒少年團（影視劇《一起長大的約定》片頭片尾曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ad6e35fe3dd0665131d0673fb4dc3c474deafa2c617fa6f34e3112b359283d. 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/TWCT52438411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0fee2df353a68da45a34fbc66378c300365f8a9c817b983e61c74235f17a44. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TWCT52438413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3f6ff5b4a1487f8ca1142ef00b353700a97ae67d52cc943374570ea016b823. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HKG732142542.