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 0x1d425b700be8b4efddc9990cb55fa79bb1bfb5e5a9fb6d7bade513b11efcf016. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/751befea-041b-4a51-9379-0c5939502996.json and https://artists.proofprofile.net/proofs/artist/751befea-041b-4a51-9379-0c5939502996.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
百代中國時代曲名典七: 吴鶯音 - 明日千里寄相思
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 0xad4b243118c94f3e9cc75234d220e97f9cc365e7d48160ae2a65c5b3ef2a46fd. 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/HKB129219038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875b9606faf06a1c15c82576501c47da9f0f241ee8400e01f9782ce340c58e76. 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/HKB129219058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea8675ea76d7669836d8365fae15585ef9dcb57d09736318880cb2078919942. 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/HKB126900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4d9e8f0be856b8d414fdaa98e7ded0c75ec806f76852c609c0abb0e3626d6d. 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/HKB129219088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2a139785929c44b17dca5b97d28117dd2ccf267059e0c0f081db8014ca26c3. 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/HKB126700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4b4ee170390105c0c9cffd25f3f421468403c51a4b229e54d836c8d842d238. 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/HKB126900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b94d52227b74933f1590ee144861a81269b9201af178bae8a936f9041a9332. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:52:45Z), 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/HKB129219048.
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 0xf324413a85995ac85ac3bc1ee135d3e6fe7447470503aa2f1e581da27ca7b899. 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/HKB129219028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806891fe810fccf9a08210f194bc423a94fb99364b195f8a30764339b3a8315b. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/HKB126900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5322e21bcace6c7693679086548209b1f8b547930c7f61875b000811c188b129. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/HKB129200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26dee0617c66a634ff7759a4d814e196c9a8c93b94ecb365515db8683324113a. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HKB126900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e3a879bf1780944db71a4874a10500278bcfdbf99738d36c3cb95f861b5abd. 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/HKB129219018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d3d11d92f1eb35663d5e2b7069f4a6ed9c118ada84f4d879f1b6f436029fff. 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/HKC631305911.
The Bright Moon Will Bring My Love To You (Ming Yue Qian Li Ji Xiang Si)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7c1dcec6fd83fe024432fb2b0b0711fcbb6c5861eab0bd8f61f7b0d4c56543. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CNE019534610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb44cf0fd2520d08b4e277d32ab50d40fa9eb9ea50264a37f9e544ba8f952f7. 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/HKC631305912.
百樂門101大上海夜香港4CD世紀珍藏套裝
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea52259abcf68dccb0a34f603e919c7b9cc59015e1add4750977264df8d9c0d. 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/HKC631606606.
金光燦爛耀舞台演唱會精選 第二輯
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4974b7293f039c9fe37448d415cdefe48d5a22cd0eecfcf2370f333a5f97ab. 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/HKB120700182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d3d11d92f1eb35663d5e2b7069f4a6ed9c118ada84f4d879f1b6f436029fff. 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/HKC631305911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cece134d4efb14119dd550f38d6ea97d523c8fcad964e2ba9d51feef4923f5. 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/HKB120509038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d92b6c1c827de6e879449ae505d51345ee0da11a1a17c29621cc6cf5dedd16b. 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/HKB129218108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7814f93ec30070ed8703704dfe10db724f440237be8d6bab93915145492c47d. 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/HKB129804148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3da1cd8876f13316076f2d61b03d79afe9e9c85b620e5f36046879919a10e1. 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/HKB129218058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc444553807fb8541ecfe88cdb76ac04e1c528d9cd6e4fe85b729b4a100039130. 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/CNE010040611.
Wu ying-yin - Moon Messenger, Remastered
Flowers of Spring (Shanghai Pop 1930's, Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac35e30da7a1bed12c99c57d7a3ab4f4f8033d92f5ae78b01034eb16b62c9476. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/MAA051300635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa185de6055462e4fe9556ebeb76020b69fe462356ea2c7012b4c8a4dfbebf58c. 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/HKC631606587.