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 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 0x0a806aecd0dcf470517c4a335c0fbd9573e5256724e62bce58afa8a02d379a12. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09855819-69e7-43fd-8d09-7d150dff56d6.json and https://artists.proofprofile.net/proofs/artist/09855819-69e7-43fd-8d09-7d150dff56d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
时间的答案 (《披荆斩棘第四季》主题曲)
时间的答案 - 《披荆斩棘第四季》主题曲
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 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 0x20e64541c9f3d9d53b77b09cc55eb8e6a455abcb2a8a5f6258f42ea8774372dc. 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/DGA092416015.
时间的答案 - 《披荆斩棘第四季》主题曲伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2613bc9750d18260746dcb9f574220dd92700ec1b17aca23098c1ae9d52f80a7. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/DGA092416016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe839c696948380ee9bd821ae1f38887f1bb4f9f19f1ca85b4995a13b6d6fd5c5. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/FRX202278516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803aa5ae4d13ee1b119e9470f62f586437408b523023dcf128ca6755112dcb7a. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/FRX202278517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2748538205131fb796f4a27e4a06ddd92fff7d1887ae606b25755ec02fde2a03. 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/FRX202229810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f56c9abfa4f401777775d61d7e7d733144e92fdf499251cd140d581c302877. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRX202229815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4aca2f0efacd294a97aa12c318719462088de4f6f4bca9fdfa119af936a3a1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRX202227073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53642f4b74a237c926984464fe9b6dfc56aa78071cc3cfd84fc7034d3058ed2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FRX202227076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bac8979fcca56c8fe6e81400c1784a946d8077b62b96217d3d282eae4b7b9e. 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/FRX202204565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77f2c0178acfbff9d4dacdff30a9b64d84cf2c82394f68371f236ba62ec06cf. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/FRX202214442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73357cb7d68d459181223057fc9f560d3e3d4d3f19234a7580ba282294284305. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/FRX282232110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adeb80d5a2e5e8959c9b22f3881a3724aefff63984e5c92f2fddc61980ee04c. 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/FRX282232117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36acb2269318e3aa8d3686138d2429ab7989716330ac19fd0bb6aeb34ccbb130. 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/FRX202249107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fe1af440083f62e5e8b3bff45ad9d2f313cf0a3e76b42e5c58a2d956a8e860. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRX202249110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2deb4f6c52c942d83eb0b1ffee726cf5a2c79694764f9843905487f500c17f7. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/FRX762145716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0da4f5f1c7ab816ece9ea4c6d8e9e7df3ce039f0e6230e568f4b4bb28ff7770. 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/FRX202249103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0984f525319bfd62bccbc8889f83d6b8339b3dbf30e667f70b9f19c3569325a. 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/HKG732299916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b090cec589af0742a24359cdc360a5f4f6730cab345d0f83a61159680a9036. 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/FRX202204843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee7332f7e7c123d96cd9f89b864b0b7bb4442f31a4e559c95c416295dd88cac. 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/FRX202214452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc309ec2e97ce29b9eeeb8077bc788a7c23ed7fb5568c5ab644cca46dd2bd33dd. 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/FRX202214454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b090cec589af0742a24359cdc360a5f4f6730cab345d0f83a61159680a9036. 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/FRX202204843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51587c656a934d8b6e9999952bc39599d7d72621f7abd745f8d0d5084b9b9f6. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/FRX202204844.