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 0xfc269b1d623f03b0dd0982d8108a3c3f0b29db8345522c29e109c167e9d72d82. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34b0f1b7-7de7-481a-a3c8-981ddbf2ade9.json and https://artists.proofprofile.net/proofs/artist/34b0f1b7-7de7-481a-a3c8-981ddbf2ade9.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 → 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 0x8c3ba60409c8575b273170019d92800b4048c9b65d324df98b0bcc004fa62f08. 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/FR10S2387527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ef621035e558c00675d7a7a98ab6652fc570fd3da2848e8ef613067b70385a. 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/FR10S2387533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d72b5c5c6784b91f4ad4c50c722f5484c5c095a3d8181657a0c9942d827682c. 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/FR10S2387534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123b8071e5d3b31985cf2da5d7d409545d1e6417716fad97d1f5ab7dac138bc4. 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/FR10S2387535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c13e7c4bbacc8c1608336fa725a1df12a30325cb730d48af682f27c9cbe8ca. 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/HKG732413009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0df6434ce9b1d503e8b5b7a060b8caa8e54243e79fadb191dffa8ed7575baa. 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/HKG732413008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2a57eba059900df5ee281a5654be4b532d59c26979128fb7167ae8d3ec279f. 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/HKG732413011.
Re:Walk (从零开始的活死人帅歌新专辑发布)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2407711779a34fbc3df9cea341b33c566e174061500d55598ce89eb33eb60c8e. 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/HKG731624033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2af1563e5fc54e91f9e12a58dc33aa3d7d58805b1572589c0a1b9eea65aa14. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKG732002013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165b77722f28c7e17f0f8d4a4d2cfa3e7b0e8ff73733fab70765b36999d59b89. 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/HKG732002014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed455750402272213dd51087b0fcd54345f44438fdafaa762547446c21c24745. 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/HKG732002021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d67dcda3214bdbaa4e04975a1f49bc551d09c0a4db108e786f29f3633b1ec9e. 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/HKG732491861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0816c6867b9926e5e54204639a2d6e39a98c31e523e01187ee6ee409674ed35. 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/HKG732499452.