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 0xdf584748ae0f688043edf1a53be7f85e2af828b5ab091a9d2569bcaa03a4a1ad. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a88b098d-8441-41dc-903a-3113ab158398.json and https://artists.proofprofile.net/proofs/artist/a88b098d-8441-41dc-903a-3113ab158398.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 0x0ae608eb54cfde50d4ad2a4fc30077ff4dfca9486e0056b8414c3c70437b950c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CNA761501331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1570f1a6296894720334b7a6da267d1ffb81fadc6af95e8a2e2cf9397467d1a5. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:42:47Z), 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/CNA761501326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9fda9001014fd6d6883b361c81f38963123f63f8cdbcaa4ba8b52c84b45df8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CNA761501329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9c3213fca86bb390dc9d23e360daa1fad7124dd9eb1d95fe71d59eb7065ec8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/CNA761501328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa459222a2a63d57130364377f94e6b081c524c0744aad0990ec4293bbc452070. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CNZ171601155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cc1b2f951ec8c85694241f0714e7a21143d69ead53d3df0674c1d0829bf73a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CNZ481700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fcc59fa3562e687e8341de1696c63b484764a52bf49b6c48937578814234be. 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/CNZ171700122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9828d4a3b49f80faea4334250b71ed64198b261ea4a30dd26fe81b248378de. 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/CNZ171700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1713b87b5b5b2cd7bd15adfc65be389c47760e6252e52e08c1d3860ad000baf1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CNZ511700085.
此時彼岸(電視劇《我站在橋上看風景》片尾曲)
美麗心情(影視劇《為了你我願意熱愛整個世界》插曲)
愛無界 (電視劇《回到明朝當王爺之楊凌傳》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e57d54427fd76ae021624b10f4fb91b76b8c02655f0f58d0f6db88aa59a856. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:07:50Z), 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/CNZ481800136.
讓愛久一點 (電影《最佳男友進化論》推廣曲)
趁相愛(合唱版)(電視劇《趁我們還年輕》愛情主題曲)
趁相愛(電視劇《趁我們還年輕》愛情主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1a4a0b710a3db728a38d15b400128340b8e66481a634f8259831a4b09a7b91. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HKG731876644.
原來我（電視劇《十年三月三十日》片尾曲）
光的摩斯密碼（電視劇《你好檢察官》插曲）
我是愛過你 電視劇《誰說我結不了婚》主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62afd1e9dbac4e23ea86f489e4bbdce5f3ec7dc5dc3f4ac350f86f309f8b1525. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CNZ512000289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a89e264a7c60c334d54f71240f1f51bbb58579204aa51ff2b25a6720f1836f7. 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/HKG731875308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e5e128ec6e59a44a63aeba8e73fe813a2d510d20844bd474b9cffa1e45cead. 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/HKG731875311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a9f746255520a2bf572bcb09ae6ab9daf35859154d510b3901a624c8a622bb. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/HKG731875312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0f09d579afc68ab22dbe0e126f6c7f1c37b2c19a8261a2de4c100ada366581. 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/HKG731875316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8fa831686d2f5a6506cadc37f71540bdb27980a60ac9c718299dfd7c279da7. 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/HKG731875318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72004548d4ade3a3f0092b504b55cd0f4a959b3bd4dfcf942a0d79ba89a6f330. 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/HKG731875321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8626a76a99e065b4d46046038e99ca5481478ae7405190025402c8486facac15. 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/HKG731875322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb30ad8d393b9dd0ace1aa9b0e8eda48ecdf7b5d4b9798d5f51a40a3f20d4795. 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/HKG731875326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d50eb2d01bdc9da436faa644aa6b9ea5488afb635ad47cbdcbed836ee792f0. 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/HKG731875331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e33eb5c572ab21b10408f6c3b0f0a7d4302386168100c7824c264b368d9201f. 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/HKG731875335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d8db231d3f572755cda4f43b936c613987c2db1d15ad491b61fa23e88e1165. 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/HKG731875339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f053ba6e622986963aaa3fc185179af268128d5869863881c90a09e4ff69c8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TWU712101750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e71b33f1b84279322af6ff6d3713f0560ca760911a93d2bbfeca8709de7e62. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/HKG732264639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25069bb322a7004b995ad2349550c5a711d2404f6bc4180350a45d7ee08ef49. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:03:16Z), 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/TWDL72300750.
訴月 （影視劇《花琉璃軼聞》唯愛主題曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9d441ff9caedb597d1872875570e7af1e4b7af8b1aca73f60af8831935764e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CNZ512300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962bbdcb790a13ee74f4c5bf443db2ad3a9a24b89a8f279206e4a948e2f9a22f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CNZ842300571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc986afd181da75198bc020916fd667cc3c8a57eb336705e4306351d56eebb8f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TWDK52305065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba81f1b040528693fece53f8a0b62dc5c87210b4435c66791b868baed2ec966. 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/TWD252301023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2b28a1580f28dc2a83a0a34d5c360e76aff102c955ec5c26117b09afaca0f6. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:55:42Z), 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/HKD012276219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dc2e93e8a390c4c19668f8465ece7860d537bfee79fb18bf78b4d16db41f30. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/HKC992924204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30224de9fcb15aa521ee1c95469e03666e2ed7cd7ef5730466bd2c038d4af965. 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/CNZ481800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344de582d0bd10d1b2d56771ee0b132834817ae4e13ec0a71085281c612e04a5. 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/TWCT52103795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1d9ebcf52f8b73193a84e4858536d6a7eeaf01e53fd41ff91c8d0867cf91e6. 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/HKG732230248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28a7d55541f808c33a62c7585c296dda0182c83b09b474ef0d8388dfb510065. 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/TWU712204398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99f2cc3c43f8077d00a387adc7c3e7ab154c930b8c5bd265ca6407512c98636. 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/TWD251950161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f99cac52c257b23c0549667369ebd363a519bc3b1df26909b3cdd4624ea517a. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TWDK51905306.