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 0x4884c784cc529862f7c3b71091215885e180e9dd7f9a155499bb71a43575e407. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ea48541-157c-42b5-bb98-f7735436b82f.json and https://artists.proofprofile.net/proofs/artist/8ea48541-157c-42b5-bb98-f7735436b82f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
時光不會騙我們 - 電視劇《七月與安生》片頭曲
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 0x0eb0f8724b49136190390f03404cb299687fae80232a050c2e9fb6b62bdd7bf0. 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/TWD251950679.
時光的情書 - 電視劇《七月與安生》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060b23d6ef9360ec45d165e4479968717b097b5a5f0299abbb649cfb74b956ad. 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/TWD251950682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbf1192267647b876b5053ff2e2627266f4ecf005a05aadd158f8e75f6c8380. 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/TWD251950683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3073900930929df63d3f6d60bd3c80d4a0593614da52f04f4eff8a3514dc1620. 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/CNZ501801172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa14d2bc9275bf325a79b38c763a2966de013663ff7202443860b4532d60759. 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/CNZ501801171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2e46ac34372002680b2c164289c798b3e733093d9d89090484dde470d5d43f. 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/CNZ501801174.
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 0x9109c51cefb7e7407f37fa40ca2657ac969d18512519ed9d49eaf5a2a7eca216. 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/CNZ501801173.
《致我们甜甜的小美满》 网剧影视原声带
甜甜小美满 - 网剧《致我们甜甜的小美满》片头曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8140119ec479528dfd4b6cd148e1fa55045e0fd7ec1986f10da2dc53e609ef3. 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/FRX872028240.
有你的青春 - 网剧《致我们甜甜的小美满》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09520c626dae76ed38a881c8ce0d456060929b80e0ca1b3ba2e2a1436dc901c. 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/FRX872028241.
怕光的人 - 网剧《致我们甜甜的小美满》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab2d9a0b93f03fc46d31da20be58c0e8dd2d45301a4db306756033d4d972928. 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/FRX872028242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e410f5b9ec55f14915dd60c02c401247255e24c7ceb1280ea510e88502a985. 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/FRX872028246.
歌曲零三 - 网剧《致我们甜甜的小美满》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfec7b2631f61f11860c7d877183f7dc4bc75d1880f219ced4a8eb02de6c7c0. 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/FRX872028247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea7a2fd2dc44d030bd4dd1ee54278795a2959fba5d6653c4a6bd4eb8f8764d3. 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/FRX872028273.
怕光的人 - 网剧《致我们甜甜的小美满》男主主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab1bf3655b42f6d8262ad9a58a2864f4c930e5d037080f9d3e04b017491fbe8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRX872028238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb856c1950e87f4481d66558dfeee1812cd03fcdb033a1657a4cb004bc4dd85e. 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/HKG732142660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7df4a8a9bb486babfcf6206d1bb7886c5bd083aba66dff6196161edfdb9a301. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/HKG732142648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4785e9a61ca9d02d2b00c68a1a9fe464a84d156926234a589d6ce41212ebe0. 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/TWJU72200009.
飞鸥不下（广播剧《飞鸥不下》官方主题曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e69ff7cb347193920d4bdfcc80e9986ce7a4c8d00fb6358f8940d2d9d52716. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKG732154066.
沉默的恋人（《我的奇怪朋友》影视剧插曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afd5743958dc952149797f8346f82f34b73cc7cab2573e266e9800f0407df75. 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/HKG732132764.
掌中 - 网剧《爱上北斗星男友》文素汐主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f4ee42a06390cc4a500d25ab5b10379a297254f9fe2c77e9241bbd9541d780. 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/FRX872034736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85239e7cb24bc0cab424a565ee3bc97b992a7c2f33a6859c9ae7027aa60069b0. 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/FRX872034759.
习惯 - 网剧《爱上北斗星男友》陪伴主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2e7913515fd1f1428d7426eb19f1e89a09d09de364805a26cad0c9097ac2e3. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FRX872034740.