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 0x377e91ea3c84697adade1ef29476b52e1dfa5e56b75873ef5fbbe2644da026a5. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2458d3f-d49b-4416-8f4d-948dc11811e4.json and https://artists.proofprofile.net/proofs/artist/a2458d3f-d49b-4416-8f4d-948dc11811e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
引力 (影視劇《向風而行》片尾曲暨主題曲)
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 0xe7a5c324fa744b5f42b06c955260db4c6586f2ab70fa31866972e5d688d5f263. 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/TWU712300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda239654afc3612eecd8921c31fb22704939ff44fb6a51afbffdada2a465dbdf. 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/TWU712300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1661cfd0e53b39e2e60644cec26f77e2a9bd4becb95fc123937f630255ce62. 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/TWU712300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed65605e6c78a268eab72db52d325303445a2ebddfe7a5530e6f9ad595464153. 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/TWU712300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cf126222b6fafd9c9c8fa361dabac8f4df254a6fde6b07dccebfab0dc40f53. 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/TWU712300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6b31b187ed31e1069660121fe9ddee5afc091385c67eb5249f66a2b8c49a59. 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/TWU712300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa750d2e4c741f246e50773556ba42762fe698bea83a5f09b34ab08d0e564823. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/TWU712300088.
引力 (影視劇《向風而行》片尾曲暨主題曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24889b73215cab05513e686467afa6f584ea9941deb460b656aa8b6eda11840d. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TWU712300034.
Like Shining Star (影視劇《向風而行》人物主題曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fd5c6bf9fe1192156fce48471a9cc4f34177b06867e4588e4a90d378a1ec67. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/TWU712300032.
念風及你 (影視劇《向風而行》插曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccf15eedc057b7fa58ec0f425fd18a47546b113c3f077ae2896ec8cf9c4d796. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/TWU712300089.
遺留 (影視劇《向風而行》推廣曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eae0d8d303d322f56cc21447bc207da5276f5e688cffd890b334e64e218f9f9. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TWU712300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b343e3ecc1f82db2e60cb8e47dfdc9204b434be4a8f08f90a65bc12edcc87. 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/TWU712300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92265cf1f7c853ecb830b6cb38a62f1e47b2f87347123a227045e255a903bed8. 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/TWU712300091.
小怪獸 (影視劇《向風而行》插曲) [伴奏版]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a25f041d856e445c74730f284360775525baae2bc4562b967e49f400ce3e09. 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/TWU712300092.
雲與風 (電視劇《憑欄一片風雲起》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68be8670aed503b73275867fa2b4e6f20de4410ec1d850f2484746b2f9935132. 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/TWU712202540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9164148d717b6f1b2f60fbf2ed19dae7eb269ad08026e88c3ef92b94b36a60f4. 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/TWU712202541.
憑欄一片風雲起 (電視劇《憑欄一片風雲起》片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba99abaa083306b6a70c99655a6433677a62dca2acd59032fd33c3d69f3f9148. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TWU712202542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93ee71d4e5de976ebcd483d2eb5aa86560f4805430f46a404d7952b4e02a648. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TWU712202543.
紅雪花 (電視劇《憑欄一片風雲起》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f256ddf1b3561807183f38769c5645fab23c8a14f6cb648b6352048b2f6c1b. 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/TWU712202544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdb45052006dcc67f4667fc3876f94bbba7dfe87008474e26bee3b20918d469. 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/HKE022300226.