1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf8dfa8bb1b8f820324984182b27e417d6887d223e25e75ded404d2da0c08b19e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/885eb6e4-038a-4776-9f60-33e7bd0b0956.json and https://artists.proofprofile.net/proofs/artist/885eb6e4-038a-4776-9f60-33e7bd0b0956.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
清平乐·禁庭春昼 - "长安十二时辰" 插曲
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 → block OTSBitcoinBlock must exist at that height 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 0xe50f7ae01e0599486ea1ae373498d92aa329f0702e5a2c32469b29b33f929fee. 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/FR96X1902769.
长相思 - "长安十二时辰" 女歌版片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285e8f091f0ffd73de8afb7d2a68be0ea2352dbc0d1dfbba7e472c0597ce3119. 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/FR96X1902770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b41a517a35ce70f2c7a9de76477c19b64db1f724fafabde47dfc127ffaa4f3. 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/FR96X1902771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087c3d32e0648eb71dba8e9ad56538ca240aa31e8eea463ee289c584b07d5026. 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/FR96X1902773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fe09e952812afb0ebebc7831f1a9784923f747e23dd468afdb0909ab1c5db7. 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/FR96X1902774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1c2bc06c2a562bab8d77bd5e2f495e12eaad347c61d870fd09b91892e63d4b. 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/FR96X1902775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21feb0ab5cb310b21b649ea97b73525d98a489b50d5d6e6241e84029c372cc6. 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/FR96X1902778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1b504500593fafe81ea64a267304b8015de06a0a2f40fe2c331dd82d2b6852. 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/FR96X1902783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9945f22e0600aa8146f2f42eaaf2de26029da16a4e794ec0fafa56418dfbdda4. 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/FR96X1902788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3077f578598bae168a36a18fc2c4bd8ca2656e0be33357c532e6002ad7ada80. 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/FR96X1902789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c3d5663a032821092380126b54b7cc61233374a3d9b0d783a0f4fa948d4664. 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/FR96X1902790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeebdf546c337e40c1aff7a14068056cde54c764d5db9f029343e474b8f6e650. 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/FR96X1902791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71bdae17b15cd556de6048fabcb88e340f5966debca4df9613397d90c48e147. 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/FR96X1902792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d3faf28a6150ac58a2e3915702d49b4f8e47b801e3e87fe8be70a1eca65253. 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/FR96X1902794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213ac1e1bb1c7cbaa782a4286643301781949b471ca86b937e277d311869c168. 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/FR96X1902801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb1b7b32cd7b9ea94d30d1c86415d7fe66a665bd283ec5b84095d7d760374af. 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/FR96X1902803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44ab78a6d9c0e98dfb3c23f1b4ce52dad1f93a4eb416c050d22733af828bad4. 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/FR96X1902807.