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 0x9570797f8e69ca0dc4ac63d82dec2c2715f2d2b73691cc699cbe47b29e298fe5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77bf5d10-ac7c-450c-b7a9-94ec5c59c791.json and https://artists.proofprofile.net/proofs/artist/77bf5d10-ac7c-450c-b7a9-94ec5c59c791.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 0x47f3ae0393ba999518dc832c98debd54602c8a41471b3559dbee5784ccfa985f. 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/HKG732460603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af105585a1532c4f3a5c9daa78a74b83f0237f4e3ad471338a52110f1a6919a. 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/HKG732431861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13092241e73fea17b847d6309212f279e20f4f63f54ee2991b524ceea82d411. 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/HKG732456681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962a9149a7e75cb5a695742eab901ca33c8a88b37ef71cdf6af2a144f21c92fb. 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/HKG732428173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a8c14cc0f03bc9f56c899cae27f20d06277b7afe295a1428410bbcefb5b8c9. 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/HKG732421943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f65d71358b5d667ecd679ba66123a213fe871bbcb811a496ffb817f03c2f52. 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/HKG732410160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6fc3678454233090c0573869f9c5345b5c1ced8ab0307439ca8238d23af7a9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HKG732410174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dda155cf438710fb39f3e75885300a658e79837ec8441837953305cc32bca7. 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/HKG732407072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571022a2e3d2cc6b675fb2b2cb421bc7e2a421c803264d8f4aa646a7f1f44748. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKG731686354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58928a1705686b44dc1dbf139ee365a07190763808c493931a60cdaa06f3b37. 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/HKG732351326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b48e6055a0add236a9772d5d0929f4d950c700fde054a996978846ba439f66. 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/HKG732281126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe9b58aae4a64274ca9befa7f55b7cb915bf22e39e6b8cab0655c660188e0a0. 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/HKG731600179.
召唤英雄（2022还是劈开巡演主题曲） (伴奏)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39509181bade081183b865f21dc931277c0c18f5617f17cbd1d067a5df0572a3. 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/QZZ972325792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b51964a0f59bf0530531232bf199c893fd37210a7de300dfb60c9d25d4ccfe. 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/HKG732105708.