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 0x2bd7bf1c6b1caf53fc1591d1c8f0b064dfcd44f37cd26c0f900ab5f85c451f87. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82124a5d-77e5-4d75-9df3-2e0487eecbf6.json and https://artists.proofprofile.net/proofs/artist/82124a5d-77e5-4d75-9df3-2e0487eecbf6.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 0x17a344af839632ff9da3828059f1c5ae4782228b716ddb656d2b8f807692355f. 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/TWU712302579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e9dac64ceb5bb6a21a10a85294350987af8b065551d58bd39c79e34befcd63. 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/TWU712300084.
去有風的地方 (電視劇《去有風的地方》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f8ac0c51713f70f89805d0a50993516ce24b1356189bd2fc6d12e87692984a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWU712300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36046dc62c59196169e9650a48e13e8eca46b9a2426550dbc82ae8ac87199917. 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/TWU712300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4efef7d36be19ce1eaa3f0aff679a7d8a7c0190fd0690842f35c94b7640da6d. 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/TWU712300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1755029e98e4c7e297facd2f3ed43c40fc4737d3ae9c764455d9ee658f3ec73e. 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/TWU712300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b1177311c500c05a44ced1de7a782d63cdcbf455cefe62d72f1a46797df13f. 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/TWU712300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4642e29d408ab96dfb30b0dc349411b3e732ec4bd2cff3227cb00ad7b83b4488. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWU712300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a70bb157398201a20fce97494b43a04a14525c2c872e5681a1f553bdecc2c2. 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/TWU712300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b05fe147eb2d5fa0b20a58e13744e090e9ce1532e2abd691753e29ed3a6d3ae. 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/TWU712300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252e5bd98b3cc62f44fbd4bbb72f32d708811f5a66cdeef8ae22daf43541e386. 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/TWU712300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07409dd9e807a7ad1b4306986eda91a6bf2d538e87cc7e631e5e09106ab6b828. 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/TWU712104217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d5ce25834aa76da51312d81437ffb180f422879aebd35fbab47d059fb0809f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TWU712104213.
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
一旗一慧 (影視劇《你給我的喜歡》配樂)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec41bda7b1d8e5937289abb1f0d35426213b4dc097a9adc884f7d670ebd85240. 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/TWU712301810.
不一樣(影視劇《我才不要和你做朋友呢》青春主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e455485107fb0ca3617abcbdd79c880e6830e68757d064af4941c188fd5d147. 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/TWCT52001234.
六七月(影視劇《我才不要和你做朋友呢》暗戀主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3094a80821fca99fdb6b0088234e433bbfccab95401a11b7cffd292515b7ab8. 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/TWCT52001235.
你的男友(影視劇《我才不要和你做朋友呢》戀愛主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae58426ab94b9e8532ce21fe2c12818b3af9371d1b22d7b9b955729ea7dbbca. 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/TWCT52001236.
難解的題(影視劇《我才不要和你做朋友呢》選擇主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6d869a04d3a62ba7fcdb9213c3ca06be5552e87cd3d37b1a362fb294be7c2d. 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/TWCT52001238.
空白以後(影視劇《我才不要和你做朋友呢》守候主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d3eabb58098bacc811a05b9e16f4a0db8574cd8b73a267703cb49f3570b7b3. 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/TWCT52001239.
我們的1999(影視劇《我才不要和你做朋友呢》彩蛋主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b17a92c11a5d621ed4f87c882fa27dc03a11ef8d6b004988cfbc7fd51fa2a11. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:30:56Z), 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/TWCT52001240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae746a427bb1a71d8e5008fe77af79c9a12e5bc37ef605be71b3d32c7de8566a. 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/TWCT52001252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd1572a0d5267489f2ff2a1fe05dfde395e2f6b1ca1f9ccf9bb399f37dd1948. 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/TWCT52001267.