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 0x326b34d12b0134c2ff3e2ecf086512a7bc59711f6204ae275e4571251210e67b. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0080675d-6513-4b6f-8b5f-d10d8ab201c7.json and https://artists.proofprofile.net/proofs/artist/0080675d-6513-4b6f-8b5f-d10d8ab201c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
知己（電視劇《我的青春沒在怕》片尾曲）
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf20a0908c46dd93f58436aaa4e44f572363d5e9f185947093dd05aa9208ed0. 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/TWAG52000002.
為何愛（電視劇《我的青春沒在怕》插曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ae041978b3ff18088686280d898f6cf13a8f757758b600f5e255f66c531145. 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/TWAG52000003.
謝謝你在我身旁（電視劇《我的青春沒在怕》插曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449eac026f1b4b94b820c6c8fe589b1fa935b1286b30d97aff7424badc1896ab. 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/TWAG52000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101b1eac6558ff2cb2b6237bc775ba5d906fe33ae9984b79b05b293a41c4780e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TWAG52000004.
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 0xb710aee8a3c52712d861bad46e035664aed3904bd9bc77b13bb5a13197abedaa. 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/HKG732406408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540f62d1126a6017ec00bd53c0570a10f6ef841fadc6491a81f8f70115286918. 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/TWAG52200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748ed7bc9ce2e3d97f4fd520eef8835a1cba150b3b6e0ff004bc61ae80035a1a. 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/TWAG52200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61648848dbe1bc899d0aad6aced28696487f5bba660333796751160412067cef. 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/TWAG52200002.
難過的話不說(電視劇《機智校園生活》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35b449067916395ba912d66d325c3c0d75f0fb157fdc686aaa5d8e4146992d6. 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/TWAG52200003.
心動闖闖(電視劇《機智校園生活》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32389681a37d6ce40a4008999b5d73b89742fca7f6539d9acf1d6b8e4bf76c1f. 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/TWAG52200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55ca30e477d412ecc5fb5e4464f997cbb3295c0d6f69d107b94f0b21d1b2f16. 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/TWAG52100003.
愛就愛上了(電視劇《戀愛是科學》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e94de9e08ed5ed2148d811e3df82f3a2dbf0d4a44a6c75464ed76f3a43b6cfe. 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/TWAG52100006.
生活就算煩了一點(電視劇《戀愛是科學》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779ee30a49f7c1081f9f819d1e19f96673f06859ab1e96399eb57e607da7e3a7. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TWAG52100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5815625d811443ac3deef3f2a6bdf7fb2c2069ef5b6183e8ba6ad09032fb15a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TWAG52100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2377f8808e88b2f34d2cf5573bbb96984275c4e5ffded7f1a9bfed4ca00f733. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TWAG52100002.
如果有這麼一天 (電視劇《原來你還在這裡》主題曲)