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 0xd5a3a090d2dc6c92f4f2e5eb3673d7544e8a73c5913c6e07d26899aa36694a2d. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03421ca9-f6de-45c9-82fe-adc838a74afb.json and https://artists.proofprofile.net/proofs/artist/03421ca9-f6de-45c9-82fe-adc838a74afb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
追光自会成为光（2024哇唧夏日家族曲&环保公益纪录片《追光者》主题曲）
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 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 0x5af77900b64f5d374727c668d91bf663637701a491ea0cf023e222cbf9aecd2d. 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/HKG732432145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe938fdf1626bbfd1fa80d077c9d42a86ffb624b9c39329fb3038429dfbffcbd7. 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/HKG731676343.
追光者（阿拉善SEE X 哇唧唧哇 公益纪录片原声带）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd2c20a2850b4f02487a662a88128523f76eadfea9d64a3d10adcafa9c47571. 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/HKG732453750.
理想（系列短劇《理想照耀中國》主題曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844875cd8e9d6f40c1240e097e5c725eab58a6aabb6bb511c7176a874bf34198. 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/CNZ502100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f371d9783ac757efb2f9e05d2917e7fcb706a18871e74430d15e2cbf88f6ae. 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/HKG732156651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4daa61c8b1ce71c2ef87bbc654840436a8933cf9e1bb21a450f1db732f12794. 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/HKG732462070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea17a1814c4fe2a43f1524054cd7c1ef6aa51bdbd65dc32a76efbcf63ead5a91. 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/HKG732462071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2bb70b820ec13335be05bfbbd75ed4c7999da3def616af3967a0aa59d168c6. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HKG732462072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6895f86881eca4b841cfe526ed9e5d5976ae963edfdf431aaa702a19c0dcbb8. 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/HKG732462073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d1798b695ab8d211c5c8bf124f2b517ac90f58bdc54332702f147970e3ddcb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TWDK51905014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13144e8aa71ff94c51e5ccaa6a7afe007d75718e1e228b94ce61ca736bbda212. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/TWU712104576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a6b70266588afe987e4a952a4265a494649b80e23b5624b709c749c40f97a9. 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/TWU712201200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed05e1442740bb4a327aaf572aef0176d1e1bcc6c45d8359b4ba30f85380ea0f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CNZ501901077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91240c719333faf556d2e9c70909a0f1991d294dc44b94327a177c242dbd910c. 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/TWU711906033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec08928aa56948c125bf821c61509d650403e6c76ccbe6db01b696d93c97435b. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/TWU711906035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd544e4d26476fb2a32c1129b4cabaabddfd8a61b9595ba7ec02ad8e3394f0a44. 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/TWU712202980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65fcd1e184302921c0e9cc6914dfaa6d657ca314746fc8aacb7a4722e6e78e0. 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/TWU712201201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd09fbf2619454206d22fdf99fa0c7eb762466018fb4f26779ef8e8314d972d. 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/CNE222000838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf565ca208d92311805b82dcef20bf5878295c4ceb58605bdd817195d35d5e595. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TWU712003036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c1e0a39f0a3cdf4c097474dbc041dcfaf1d5000829eb497377d62efa153ef0. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TWU712003377.
趁相愛(合唱版)(電視劇《趁我們還年輕》愛情主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd204788e31e268bcac2a55569b1a9753fcc903601aed482ff3f99091ba3da108. 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/TWDK51905016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9c93e36678b43ecbaa741e99c157a43a429ab5b380bab381d97a733c9ba954. 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/CN2DY2500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83d29956ab104e64de16afdfb52e2abc011c9f30e88b8eba5bb6b4f491888b6. 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/CN2DY2500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791d3bee7b518aa4e7fde7eebefa9466c28adc5b5dbcd647657dcf2160d87a4f. 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/CN2DY2500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfffbf934b881c4c4100352a3686014134cc759c5719db22cdd73c543931e99. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CN2DY2500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ca0e35d32730f221bbb7d86a43c4ec8bb18e395b581cf5cceb0d58de17253e. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/CN2DY2500089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bca278edbd24c6ad62bdcea2586be96888e8430246bcf9f07acf30466563a66. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CN2DY2500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb1291021ff1c340a88e07d66455b6aeeffdcee631a699eef3845cfa8918b57. 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/CN2DY2500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe201c1fe54abe715436c18e3e9549a4bceae133c8206d7be7ffa5ca188e73a01. 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/CN2DY2500137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5384a954a57773d51860496489070c7dd0179265347eb8785a1bb7838354ecc. 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/CN2DY2500144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47630597d25bb4ecd7aa816d7270f729e22959716984c870f47cb3581d5c6c2f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CN2DY2500146.
乘風少年（電視劇《乘風少年》同名插曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9058088a1d7bbb22f3596fb0fe106b33ad09822860af9bf05c6930a63bad34d0. 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/TWCT52002497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336d7b31d28252a79ac44e9144c52e678c00b4e6845e49a87a2c3a13cd43cdd8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TWCT52002515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3846740a0b1d49e1b6d10622f1d89947ef5ed4944978a08ed355e04d6a8476a6. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/HKG732422911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6510165cb4c7d56b5181ebe3390b651bcaefb65374caf71371f27d394e214f60. 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/HKG732422912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b14eae0e4fe514b53d56329d48b8560043f85aa2815bbf44ee1eb55366654e4. 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/HKG732422913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52d8024a4aa1634d1c0d650b377e8c701ebbd73acf05feec0d391be6c1c61aa. 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/CN2DY2500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba9f71b3116a1dec82a8ad7c8f43f7c40fe41066b1e2947ecda448d6fedbc87. 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/CN2DY2500135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90c548fad534ec19975cc8d8607d1ddd0b1e437cc796ae75f0bc569bad9db33. 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/CN2DY2500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab6b09ca65a87799691330f68615b7a38e45d156ddc3270a2cd6452a16c75f2. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CN2DY2500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa949d13ac5a1052b242eab015cdc6235c47ff4c9c0a037da8c87d004fbe414a2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CN2DY2500091.
境遷 (電視劇《哦! 我的皇帝陛下》片尾曲)
The Very Best of Golden Dog: 最佳主題曲, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e234f817a903b36a62837d3ffb81660aa7df2fd78a624aa849168e714d612f. 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/TWU711801554.