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 0x1ac0804310428e3d76e1e42f393b610ceea639a51d7d6a972da06a44c802bfeb. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/321b2772-50b4-48d7-9d9d-b3ce326038f1.json and https://artists.proofprofile.net/proofs/artist/321b2772-50b4-48d7-9d9d-b3ce326038f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
做我的勇士 (影視劇《我的反派男友》主題曲)
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 0x1d77aca6c65b6a46589ccd4269699f133178090255c2d056929dd83306383271. 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/CNZ842200463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8c6b424f80dcfe3c57ec946584c0eb16ac963ae1a56ee4873789f9aa362098. 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/CNZ842200474.
戀愛小說 (影視劇《我的反派男友》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0725b1f56bb71e6e3ad3a9ef7d385ea9f671b7298e2dd9afcaf1b2cf4f11e104. 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/CNZ842200471.
我猜你也心動 (影視劇《我的反派男友》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7bf91a2c8a5bf60323f33bfe326f385a59ba28b15c2e29a2af3e59fd82d7ac. 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/CNZ842200465.
走進黑夜 (影視劇《我的反派男友》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65138dbf59927b8fa09ca1e193cb1359e27ddb1454a5289116f1dbc972dc5da3. 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/CNZ842200472.
做我的勇士 (影視劇《我的反派男友》主題曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe085a20e7c4957b9f9d12ae1b1aa77d17b6dd96c77ccfd0d38515045917d629a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CNZ842200464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa6c7f188835e315712c3f721993725c08bc46b0d2e3b9ae727badda3b9c62e. 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/CNZ842200455.
戀愛小說 (影視劇《我的反派男友》插曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6636c81a13f8ed6374b45de0efeed71083053d51560e3b5076f90381aaf7677. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/CNZ842200466.
我猜你也心動 (影視劇《我的反派男友》插曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e2baeec6cfb40c314aec1ccce4f7d8a18ae2e87011dcfb40bc11d57eee4efe. 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/CNZ842200470.
走進黑夜 (影視劇《我的反派男友》插曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc14887466f56c95183b3709c6ffdd91843eb37801eea4cb70a11942138964cb. 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/CNZ842200473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c1dab70342125636df58163addf0713657d99d3058e9f07d2df0d4515a25f6. 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/HKG732139065.
做我的勇士 - 影视剧《我的反派男友》主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bb91f5d26c16ed9a1fc7bf510b4bb4e32cd6f2d22f78c208f4e0ad8c2f86d2. 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/DGA052309219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe079c26f7b19dfd38fce535888ccca10df9e1a5475e8dd8a55b6375153c0d4a9. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DGA052309220.
走进黑夜 - 影视剧《我的反派男友》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e63b4cc08e4854c821a38eb3cb42fad9c8368599951a13b34ed82aab94ae6b7. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DGA052309223.