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 0x3b4114580cb3706d0f168ac76db49cb28b168f065fe2026117979d5d6f421cc9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/311b29ee-5464-40ec-a29c-6580ea1a2570.json and https://artists.proofprofile.net/proofs/artist/311b29ee-5464-40ec-a29c-6580ea1a2570.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 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 0x99ce0b7287d2a3a32fa48c6471e61868d5eaab450562e44fd2a2f3bdf1f7610e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TWO471000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8363f5d37bcc96affe18eff2ea3bca5310985c89b0ee40d2355f311d1fcfb581. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:36:40Z), 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/TWR031305001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8b7467c88ec59ce75f472284b51413fa85de4a29cfd6aeee3786a26b1bfa25. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:28:54Z), 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/TWR031403003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121259dd7c013fb906b266ad1827dc6a0b93c135df13bef0e6ff103c9220cd27. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TWR031403006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b30140d4afe40159cb6a99ae4b798510cac77f99a5ffa66d3d9478356d83912. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TWR031403007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d37a4b3805b61a7559f475c54757a67ff06c9ba2014f71134ee848dbb8beb57. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:58:24Z), 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/TWR031403009.
白痴（三立首部迷你劇集「你好，幸福」主題曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf8ca2a0bc4797ea1ffb908ff9b4d935608f4b6e8fa64d7cd93ff6a92dd3aa6. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/TWBW51900816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0104451ea34d623f12f5ef26fdd4a400643bc8bbc76a81649dd95a2da69c2b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TWBW52000214.
我現在會好好的 - TVBS「女力報到愛的故事」片尾曲
這就是我的主場 （TVBS 『機智校園生活』插曲 ）
再也不能愛你了 （中視 『台灣X檔案』插曲 ）
我們只能在一起（TVBS 電視劇『加油喜事』插曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a037e303124f84b63f823bc07844899324c2149879707f36bc0318ce78b6c31. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/FRX452588446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fab821f7b43a236d53934929b6e8061fc7170d94be3a11eac7cade31aee056. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/HKG732567134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae760c85baeacdb940aee0a05547dc9f40220f9c3939dead1669b0c108143d9d. 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/TWCC32322145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb9b5fa977d894971c20922d2fee8e73e5edb677a6fd71e5e8b10a0f6db56f9. 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/TWO471600204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c05a916b69b46cf67931e7b25ce6f59d0a167c7dfde252decc8894010e5dd5. 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/TWO471600206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef283ddd93796316a8643c87bb3fae3620a82ab0a6e669462481e26c6a34d0f4. 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/TWO471600213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e4498fa79c05fad6e170fe78371a4fe17679d4bcadd491793926e42a8e1017. 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/TWJ450700104.