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 0x7cd394fd9604c3fff2b66fe5409efc0bd3e9e7123d8d8d8a52a0b68bf2e4b0c5. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d4774de-d489-4fd0-9f2c-18df12dd829f.json and https://artists.proofprofile.net/proofs/artist/9d4774de-d489-4fd0-9f2c-18df12dd829f.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 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 0x961057df1e18f6eeb5adc22c8b786aef96959836e4dba3ac8bc2a22fdb3412ff. 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/HKG732006022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc03236d2fe1fbe81c9e5ccf1a3c8402febc574ff61faa7af60e59f8af893b3f. 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/HKG732006023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf1b83ddfe320e085b32e46d1120d1491f809d90f6923aaca0c7c6203b82082. 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/HKG732006026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809e72b76848964a1b7361900f32d09993128e4757e5236dad4d029b2cb064b5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKG732006027.
创造营2019 赤子之心 乘风破浪 第6期 (纯享版)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe938fdf1626bbfd1fa80d077c9d42a86ffb624b9c39329fb3038429dfbffcbd7. 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/HKG731676343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b437b164d37eff15d958eb81664f9d8904bc9982d3c80091181583e089cf366. 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/HKG732006051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8637616fe24316f9e7ec05883875bd7fb037809ce12804565629702cfce39104. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKG732006070.
创造营2019 赤子之心 乘风破浪 第10期 (纯享版)
崇拜 当你 袖手旁观 梦里 我可以 不哭 世界不会轻易崩塌 一路上有你 终究还是秘密 - 纯享版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50221d2d11a28a6495f6ecbfc003eb27b736b5b22bc756c64a3e9c5d21e778e. 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/HKG732006029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a7b2a5606ea8171638a2f4c504d9dd9b283a6620b6d1456d11e0b1f1c10572. 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/HKG732006031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095c899340237461901d1461c7688aa6e391c9f3d6b82b693daab45eaa768726. 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/TWU712102888.
法医秦明之读心者 网剧影视原声专辑
之间 (《法医秦明之读心者》网剧热血向主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf791da82ae32b88dbdba5658eea64a7d9982b47e0d08a9988d15161955e753e2. 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/TWU712202693.