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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda19b8d9f82cf0ea75fc79034357818bf44a8babc2aa2df15e5caf8379eb877. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aafb10ad-e784-4b50-828e-d08bda263ed2.json and https://artists.proofprofile.net/proofs/artist/aafb10ad-e784-4b50-828e-d08bda263ed2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
管什么风向（网剧《拜托了班长》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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b732e046e06ab2b2c55cbc8f8355d92ed5d43a7f58fc164408756f7d5f01dc5. 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/HKG732426898.
拜托，请保持距离方圆十米之外（网剧《拜托了班长》片尾曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e7554737b2d6bd0c38327b0a14a481702a9a5f037204a932e4b294982102c2. 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/HKG732426899.
不如踩着白云闪现到你面前（网剧《拜托了班长》李赫人物主题曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c24ffba78890f58085292becf39da6b323795f7af6fb8105f7d331f1ff72fed. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/HKG732426900.
你知道我知道（网剧《拜托了班长》叶景希人物主题曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a38611711ed64f83e3952b9156948c513c647ced093fe27ba4793770903a1f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKG732426902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7fb78051d11a6a55ba5e9bcc601daa82edfcd182be00ea6750ba9d361e22cc. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/HKG732426904.
你知道我知道（网剧《拜托了班长》叶景希人物主题曲） - 伴奏版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a1903533696bcae4221256ae25954079bac22a367b6aa27d434962da29ccc5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/HKG732426909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb025230a1d369c871359640b535662d9f4fdb4cb91e66d77edde27ed13d1e1. 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/CNZ632400914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10201a8a60df0d430f5542feb93b33551c6af5737ddba9cb4e58c9e5f71b1f38. 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/CNZ632400918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ae021b48d90d40ed65b6597c3e07f810472dc28a84ea0dfa10ba7593e0cf73. 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/HKC371883974.
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
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 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/FRS182125046.
小时光 - 影视剧《你是我最甜蜜的心事》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d5b9b4a74efd114ee4ee32560c5e34ae280ab4d38c155aefef04f45a4c15a0. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FRS182125048.
小熊饼干（单人版） - 影视剧《你是我最甜蜜的心事》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88877f81433c72d857ad2229c787e1592cd9e0ad0e0d9b9ba0c8ebfcb1d0b3f. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/FRS182125052.
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 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/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.
前行 (《斗罗大陆之燃魂战》电视剧史莱克七怪主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6d07631e876876d280196248bdf9611ffd69501d8032bb12374cb56a2121e1. 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/HKD012367254.
前行 (《斗罗大陆之燃魂战》电视剧史莱克七怪主题曲) - 伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfbc7d3ad7c701389ea3043e0c900ed9c19b2f625ec354d87d2c7ac477300e2. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HKD012367260.