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 0x0a62b3b2fdd10185fe98c341bae9494e3299574b0482d8252b06d806d7cec7b5. 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/4a42b579-79d9-43d2-804e-131d80072339.json and https://artists.proofprofile.net/proofs/artist/4a42b579-79d9-43d2-804e-131d80072339.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 0xb4115fcabb01b12c68446432b35422d3594e68be5ef12e6064e664740da290b3. 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/HKG732006021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961057df1e18f6eeb5adc22c8b786aef96959836e4dba3ac8bc2a22fdb3412ff. 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/HKG732006022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc03236d2fe1fbe81c9e5ccf1a3c8402febc574ff61faa7af60e59f8af893b3f. 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/HKG732006023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f539d74f1dafbaf3c2572cd7888618ffbb8e6dbd0375f5a115e9541d03e9f7c. 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/HKG732006024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf1b83ddfe320e085b32e46d1120d1491f809d90f6923aaca0c7c6203b82082. 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/HKG732006026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809e72b76848964a1b7361900f32d09993128e4757e5236dad4d029b2cb064b5. 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/HKG732006027.
创造营2019 赤子之心 乘风破浪 第3期 (纯享版)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37583fcbb0af26c34de028229617896b2e8857a7ca0253d1686a59b87bede8d. 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/HKG732006126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70fc320505f0db5533073e105c870a6072c806a0f009cf2b30b261e6957cd83. 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/HKG732006128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00620c59bd8b52f5955a0ad34f6b0f219da9d1dd08c7e37bab221b575bfca498. 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/HKG732006130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697bde24bae142901db79b3497df43f67a93580e73ecc9a0441d31fcb0232051. 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/HKG732006114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f366fe14be7647e3a44338ad956ec8ff9feda75f544823184fe4718c9622d0d. 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/HKG732006117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0479425458e1d1179f869746025321c77a91b084a69c0542339a87dd214ef181. 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/HKG732006118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f27234735a10ca4686a01c9556e4e1b2a1ed7469adf1f468794c050d6fab03. 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/HKG732259704.
出去玩（2022哇唧唧哇夏日家族曲） - 伴奏版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4d012725fc7f661077d1ed209f11d19912fdb9ca6d51f7678950f291a7d80b. 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/HKG732259705.
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
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）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af77900b64f5d374727c668d91bf663637701a491ea0cf023e222cbf9aecd2d. 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/HKG732432145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe938fdf1626bbfd1fa80d077c9d42a86ffb624b9c39329fb3038429dfbffcbd7. 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/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 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/HKG732453750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94490b0f45bae184b868fb826a3338e19f87cf21bb8a78634c46e00848d72150. 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/HKG732414129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc14a559ed489fa015f1805251dde7f909a1790e612b82535da209faff57b08. 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/HKG732420016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff3b3b00e6a42dd624a84e80fab30faf51dc8510a7b1a529e6ceeeaaac1b605. 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/HKG732420255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0303e0ac71e954d2888b3e2ed1209338ea211f20998ac08d163ac128d4561c38. 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/HKG732420254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa477775d9912c3f2a41dd5183d373cd9c8e8972107ba077f46d9356b1523d870. 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/HKG732420017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b437b164d37eff15d958eb81664f9d8904bc9982d3c80091181583e089cf366. 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/HKG732006051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420dbc3feaf9f2b798c4bdcedb1d9824032b2a26d51d790ffe89e9ecfd566e86. 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/HKG732006063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8637616fe24316f9e7ec05883875bd7fb037809ce12804565629702cfce39104. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKG732006070.
创造营2019 赤子之心 乘风破浪 第10期 (纯享版)
崇拜 当你 袖手旁观 梦里 我可以 不哭 世界不会轻易崩塌 一路上有你 终究还是秘密 - 纯享版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50221d2d11a28a6495f6ecbfc003eb27b736b5b22bc756c64a3e9c5d21e778e. 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/HKG732006029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a7b2a5606ea8171638a2f4c504d9dd9b283a6620b6d1456d11e0b1f1c10572. 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/HKG732006031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cd3e371653f374c2a196a2bccc200881eae85cb7530a7c361fc20e1ddc0b56. 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/HKG732006032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe693a53ec60a7a48ce4944a819177aad3463ba79b1da2eaadfef681cf8ce56e9. 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/HKG731875163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633a1591e8782c0275709b249a9c5e6e8f0db95b5bae73cc7fa901a406c402ee. 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/HKG731875166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ac1e16e9d984cd64a840e506f993f8977040563f30578f74d8d17ae85e8a7f. 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/CNUM72500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d8b9f4bb7032c919cd262ccd0ab04bab0039ba8709b3178ecba4df32cb7634. 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/CNUM72500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee861f824539a7646d91369655857bd7faec1f01ba92edb7dbc14ae732ac50f. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/CNUM72500048.
猫鼠大乱斗 - 综艺《城市捉迷藏》主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bf4aa2f77f10115f9cd084cdd298bea4a4d0ffd6d9850bde4a50af8cd724a7. 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/QNSM12400838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbd49609b79036b2c0f8321c31e28696f9bd882d2bdc0247c040c627dfa2991. 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/CN2DY2500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93325d1d7e3c8f1288e3257b3f72102acbda8c06dc7cd6f79b74a1e252f7d694. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CN2DY2500043.
Versace On The Floor 崇拜 当你 袖手旁观 梦里 我可以 不哭 世界不会轻易崩塌 一路上有你 终究还是秘密 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d7976920ce3a39ba976e6726a72c0989fa37434a4204f6343d382a53c68bf6. 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/CN2DY2500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fd145a4e28b2e9d25185e5fb4c93f07653db7ed2feda4b651e422aa1f8e53d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CN2DY2500056.