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 0x37027fc245a8bb806c06d0adedf8c319e006bcb32084a7eb5962ef838d0b5269. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50936e92-444a-4512-b038-facec60f9aa1.json and https://artists.proofprofile.net/proofs/artist/50936e92-444a-4512-b038-facec60f9aa1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
影视剧《你是我最甜蜜的心事》 原声带
距离 - 影视剧《你是我最甜蜜的心事》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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1094f3c406520c3f83dd2e28444aaef1a2f73a345fd02b1a10c9d9b1990b9b1d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRS182125044.
彩虹以外的颜色 - 影视剧《你是我最甜蜜的心事》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd898ea73ee6cd84b7adaaad0712775f5910cbffb18b3eb5d3ff50e9f5f66617. 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/FRS182125046.
心事 - 影视剧《你是我最甜蜜的心事》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfeec77cd170fe880efea0e92887e2da92b95bb609939efc86afeed6d0b32b7. 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/FRS182125055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9b601c229ba6b1709b18b00b77e5957c179f843eabd66a16f92cf1012a22d4. 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/FRS182125065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2edfde71c86dfa71771ded7a25f4abb400bd8fc8e8dc3f952a56820bad4d2c. 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/HKG731591459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b332861455baaa3cb622dcd633977ccd8c7943eab0a70f534c7e83ef30bb82. 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/HKG731591505.
读书郎 - 《漂亮书生》网络剧主题片头曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958da9e842c3de8f200ff596b3bcdc52f415fb17203be3d409f9e993550e3fdc. 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/FRX872009559.
云上恋 - 《漂亮书生》网络剧主题片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5d4493f0e3b9d486038cd0e231f823cd348ac7c136902bdb2cca4a97eb0414. 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/FRX872009560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07abcfc93cd1e6b38fc7a9e345943bcc7f1cb3f4d4c3cbc729a7be683396fcd. 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/FRX872009561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb2b6095fe83ba2c689da2526895dafbaffc9b0c59a47b0e07261b6e20c148d. 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/FRX872009562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfc3d7c0809fa2a9a827d3c683164d166a4e11bd6c68aafbe34be3a06c9a01b. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRX872009564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd982c1eeafe664e62ab8bfee85f25e6fa9a8bea9d8bd9a8c8981d396cac4a00a. 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/FRX872009575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f2627cbe71790ffddeb9119964509b6916222383ca6f68f451c357be7eb712. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FRX872009587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a11d6fb343bbf7c1ed93334b61be3caade2b70d3c0beb831b003c4c12d694f. 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/HKG732236486.