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 0x4bde7702a9515b04c3914af9aec6fef66e731c8f553d6596e8a8035d502b2fda. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e102ca30-2af8-4eb2-bb17-b1ca0fb2a82f.json and https://artists.proofprofile.net/proofs/artist/e102ca30-2af8-4eb2-bb17-b1ca0fb2a82f.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 0x231f69c02dd873ba71ee70a4d295fe2347071900aa9564e3e397a28ba5de35ae. 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/HKA610402136.
香腸.蚊帳.機關槍 - 12" Single Mix (電影 "殺妻二人組" 插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b138a6f211d5f5f984bf3dc10580cf9ca46c434dd85666658378be0c1c64df. 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/HKA610500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4736204e3b5677ef1df6a338fecfaf16b223d27c43387531b5ed818490cd582e. 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/HKUM71000547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa118570a8a92ace8da73d31c8caf07f99751df3a1a21e14e777920d7a711e4c6. 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/HKA610500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479c22ac50fe2dcc566eb0277915497b48dd40d68c8098653146569565ae53e8. 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/HKUM70900474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76668266bd2c0f030da12d1301974d6018524878a00e1cced7a739decc89df02. 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/HKUM70801792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3354a227e927313452680561c6859e2d714958f14964af152cdcda4ea5806b. 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/HKA610402508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42371d2577a29c272529a49e661f626678ec89802cb5bd5c286c6564142d9b67. 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/HKA610402509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd415a9d866eb8d9ef6de83d216f0e7c727910d8c764354a17b9179ff305b3a56. 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/HKA610402504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6365fd85246a918621bcd7fcff28c5f66b587648e85cee7ac23bbad3e96248b. 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/HKUM70802033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70d6c072e151b7b69a26870570a876e270419fe90c94f03ce4eadd1a844f09b. 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/HKUM71000540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb82d08cb84801f45a87ffaa4051176354d828a7cb59d3068d0002c3a5baa48. 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/HKA610600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a7afa3d5c81d4ed2ad01881a1e89b9686b98c6a2e2792ba1122b976e444b39. 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/HKC339800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a7e748c26d5cc3389b8b5edb4e829ca10eed69568ce1c61a8cc3799281278d. 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/HKUM71000539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0dc8582b0f2ba2f5adaf530a359d660041bfa579b0b3b56a4c9a5e6a207087. 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/HKG079300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824195ce7cb45d26980313f71e75976df761cbdcd19cad820f65a740e04309d6. 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/HKUM71000550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc365f8d561a4614438d7c62ef0a34677761df4447bccaf52b49a3f2604e5be8d. 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/HKC339400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ff5f8e138bd9d8d3e6a704073158adbe0d413ac6ac440af6ce133cd0f28269. 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/HKH589600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d15842b8bebb743cafc57d302c3aef6bd740006001927e32e647f8af5077001. 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/HKA619900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6929a1b9316be9dd2b9c6da0c33b16031e1935e20d818132f475e25bf058cf68. 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/HKUM71000716.
那天再重聚 - 無綫電視劇「愛情安哥」主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03aaca9846d1fc3719a6090a2da716fabf5a978a890b3460fc6cd96d3314f9af. 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/HKA619900278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08510e0c4c3febfbe53f710eb0a6737cd82a0b04c53c8b14c7a46c3f597210ad. 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/HKUM70900514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39ef028d31bf051a25a60ae13c9f68c73849f2104e11d527b0b47db77da9133. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/HKA610000887.
倆忘煙水裡 - 無綫電視劇「天龍八部之六脈神劍」主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a69763b9249a173c563ffb76615e62c9287666dfdb4e754ef51626c94973447. 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/HKA619900387.
流離所愛 - 香港電台廣播劇「流離所愛」主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0256b2ba38182f83f1f1c4ebe5d3cea657a70014e76f494f062bebd076789ba2. 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/HKA619900502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea73a49a221f969e1359233291c87b275f58e8a1cc38172bf6c57cae0617c82d. 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/HKA619900241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323d5dc59a40248513d9466127892aacb6704b8a96628767683f7d6b338d5b18. 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/HKA610000861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f0290e54e02dfda8ba15afc3f3d3c77692cd6a373d4c8b48f2d817efd1b0b2. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/HKA619900390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038bb6aa06847ea8264f82e0c61ee5d84c488bb638d4c404ee667c1fa65c6312. 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/HKA619900221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1743f5986d112d4a4bcf653feccffeb1b1ced4fa49e6f31ea926b4ee987576a6. 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/HKA619900238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632fc45585a3abdceec20fb44c5d2730b6cf0763c0c0754eb3f8594e8036bc98. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/HKA610000981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2b1f93797353ba19da8a29f2fdf4fa397477c176766f34c015f86f7ff2d88e. 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/HKA610000767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86d4ba9a3bd9739424ea2063c604cbcf65e64d5045c6b446f0e34468d15728b. 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/HKA619900279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f84f33d9d59587700484c943d5c62cf2d213ab8589e3b0c7b0e113d326185df. 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/HKA619900274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd861485bd2ea2096631cbe8520f525d85c89e3d6b0e2bd27c5c172b96280dda5. 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/HKUM71000708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628bbd66614a9f02b5bc975f6aeaefc790febef064c27cf245790f1868c5fb06. 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/HKUM70600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015343df41d75b602990d2ce55dd10479b73c623b88bd2311e3b4344650c9d78. 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/HKA610000977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18182575fa5a86b60a0a9dbd22a932a57626bef439e165caa4e0e71101a5c9d. 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/HKA619900235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd5b853dc153ef33be2a9067695d33d914a029a425ec8fa64a6c121a233b7cf. 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/HKA619900413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebc3d0b9f86d7d7d1a283920a5757a5d78ab67cf0f5f401276be3e9df1a94ad. 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/HKA610000978.
對不起，我愛妳 - 無綫電視劇《今生無悔》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48258a6c8785027907312267c4c007d2ba50d6974838a65614b9d39785fd61a9. 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/HKA610001078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f49cba4744602097d249a1b29c5dccd5f3973c0d370b28d524ddfe241b82d3. 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/HKA619900269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2249b21af0f245b321d8e15ae3935d482495bbc52a47dd9f90a25dc67304e1. 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/HKA610100122.
袛有情永在 - 無綫電視劇「賊公阿牛」主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac75c066d6c04992553097a4bcef667bc23bbc4abcb4f06f95efccc4f09b372. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:58:06Z), 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/HKA619900277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5161756c0e86eacca10b70f6d5f4d68a3fe4bf0ea60f15b196e9f5e03c699f30. 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/HKA610000611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ac4e2cbdfa2ced8ba6e3e9eb128eb42c4bba6e6cbd6d28f7234163daaaec5c. 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/HKA619900377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ac13f8af287508bcf1049e88e72ff1ac6fd15aa54408838f73bc7a7e024482. 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/HKA610000587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff8a11c58cd461d2229bdc55b01e3eb1fe493c9e387264cb406b01ac34c6221. 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/HKA610101083.
人在旅途灑淚時 - 電視劇 “人在江湖 ” 插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aab2f048cee859b3ff09a5921e6d9403c229a2db5fdc543b6cc6b2641483468. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:28:00Z), 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/HKA619900265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7005960fff25e7d85619073bbbacdc461e2b5a6d10e4d8f752e87bd174d4b5f6. 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/HKA610000608.
過客 - 無綫電視劇中篇劇「過客」主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c73ee4e09692468a831c2b3a82627bda167d58ab61fc96eb678e0242cc0cc3. 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/HKA619900271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636f50ff6645afdfc5f567169345501abcabe0e3df3fbe4cbc8c892d1345e1bc. 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/HKA610000622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a2b16079fac6edcac4e943b67b807bf853566c99f87f71787b054cda47dbc8. 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/HKUM70900400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637b29b4a5aded682d72ae317cf2f84c1d7f26812b729386a457d56bd7c38bcc. 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/HKA619900398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6508bf7ce2fbabd008dec9af04c6f87fa2524ff3b652353f742db48d5c1e3ad2. 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/HKUM72300366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecae8d7a97539692e174a2ff0b3f4b1894f22db55c89cdf461de03883b9c17cd. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/HKUM72300367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23be4c3be18704243493b106c703f7817cf6ecfe0c28f1319d67be0000d1a396. 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/HKUM72300371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95052aa06bfbfbd581a08f8de1b757fe3d5f6e82daf8ce9b91e0bdaf7ad6c11d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/HKUM72300348.
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 0x1a7720baed5f323f78a12b586c4a0969cd8685885526c21d961224053fe5983c. 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/HKC339500089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791d900f71b227534ee22ab7c9234749ba82de52e30c7254dd57b6c6af214b30. 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/HKC339500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee3acb768401139406f36d9db5b599ae726e5e5aecec40d4cc0e18036cde91b. 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/HKC339500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7a09aa20140b31dee1830192e3a34a44c4b91e4af59285c24a6280b048d716. 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/HKC339500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2684e86c88357e7f98e4587f6a7403b21dd22d8b412ce06b9a9e7662224108d5. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/HKUM72100363.