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 0xc0145bfe18c9e4adcd15da2e0e2c543b87f0c81dd9dc108a295b41cc943047b3. 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/abaae57b-0e41-4197-913c-762dc9a4cefe.json and https://artists.proofprofile.net/proofs/artist/abaae57b-0e41-4197-913c-762dc9a4cefe.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 0xb4dec9c7310a626aab82a4c7203c536eaf2fcfcda72807d0d916baa95cf36491. 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/DGA092472046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9d1c91d529ca357922f70944dcee294361c91710492067e919d34237e9003a. 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/DGA092472048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e12b886a98195ee913410f4d4e98a6bd9e99db69bc5131cdf9d60f489890bf. 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/DGA092472049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5374a394b3cd7ef2b61432319cec26f2b83ea27ccb3e24b02a85ee9cb00ecefe. 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/HKG732412823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e8765318a30ffa17b82c0b877f3169c3d652d53d0e8aa4bf6f74d7d76c4eaf. 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/TWDL72308216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58227800147c65ba842f3859cdba38cb258e9771820032e833bbec79d47bef98. 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/HKG731647224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b71155fe1d692d45b148d6d827b51d41dd22b278075c0e8cd032276dcc01fb4. 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/HKG732376044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70793e507eddc0ac61cf4dc64784c060999ca642580078f4e748514f529b5c4b. 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/HKG732349985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c33d24e922f100a2b7f39ff183f19a10f809e747e9e0e4c1f10cd4f60abbc1. 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/HKC992324023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaada4c3b72f081189a2eeb0b991194c75d8b5fc3a53d94486b72b1afe8f171a2. 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/TWDL72206273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507e2ab3f25db83009e59f9258ec29d42f4bb7f8c351ebfcd9bb63e054413c8f. 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/QZXLZ2345183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ea6b9e0f15fe17fe1e30c2f85ddcc9ceca91dd533e73d7977fc5c08e89995f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZXLZ2345184.
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
本宫今天不加班 (网剧《本宫今天不加班》主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb65d26cc54b752e32784ffa9df6d2c254487749c6e5cf073f34ad57c6d35cb4. 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/HKG732246319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577e9b78d2351bbf23fc94fdb13116bff1f64d27744d719958d503dc7fc57418. 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/HKG731761984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961b14c36c438f69e54f1a51cff14591973d9dd2391d3fce3a61f160869594ac. 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/HKG731726646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc243f1d0af55af7d10a3b9f52c24234cac602634ba726e8a05c08face66b7e. 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/HKG731861769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7adddab9cb30bd6186067e6df08d32ee21709a008528c4dbf1e05ae6998e3a. 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/HKG732149429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a3fb88c4ef7cc332f9f177ed9d2e99078347f1ce42063e596dd3aea1e65b71. 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/HKG732122498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb414cd5fc0fd5920426ab21fd654512b8b878b6f9798bc4fb0040c62aae0e37. 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/HKG732157301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e438aa2dafaf483f7726fe6fae4f19c3d29f523f0e3b15de5ac885180f537b8. 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/TWU712002394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393b2e4a68ea9e4847ee5787532495e63941c0d9c3bcc1e157be8df0988f348d. 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/HKG732118278.