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 0x226b8372facce4db34ec5ff34ee4c8a03c724d30e08231b0d0935edc9475cc0b. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d933d994-413b-4b67-8093-d819b07bd895.json and https://artists.proofprofile.net/proofs/artist/d933d994-413b-4b67-8093-d819b07bd895.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
律動音階： 幼兒手指律動音樂｜提高專注力
幼兒園律動音樂：開發大腦｜益智早教音樂
胎教孕中期啓蒙音樂：歡快輕鬆旋律｜幼兒益智音樂
胎教孕晚期：早教音律啓蒙｜開發大腦
催眠曲純音樂很快入睡：嬰兒搖籃曲催眠曲
輕音樂純音樂：鋼琴曲純音樂 舒緩心情放鬆輕音樂
阿爾法胎教音樂開發大腦：孕早中晚期 胎教早教幼教必備音樂
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 0xab3fbff97ea77472dee4edec32b7dd32a8d9b49f9fce9b52a9eb7b6194ba0c3e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:08:33Z), 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/CNZ852302464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09697841aaf50e51bad2327d17078cc741229dd5375f767e881b6644c696990c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CNZ852302552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8924afaca39b5336c8a42ff2ccfb6a38955a4a0d3ecdd8a12ccdaf31d920d6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:55Z), 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/CNZ852302465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6615fc812c26682e9c4c5054dae2ed64a27d05ebb8e2c3c8d1b7ec25332b9160. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CNZ852302553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134cebfb7ecf7cf8ab4d2e37f9dae4c84d9dfe22cb58c6cec767d7854694fb18. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:02:12Z), 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/CNZ852302466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41756033d21b75c4790f6a098ebaba4a10e9901e276913ae1984243ed9f78c6e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/CNZ852302554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072d2cbbc6df0522ed704f95e926bc62fc8bf908384dfe67059904753f6bb171. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:47:13Z), 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/CNZ852302555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b565ac9f86866105fa1d2d2c42091f640aa52103bd9f8207d224b9ef5cf84b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CNZ852302556.
嬰兒催眠曲一聽就入睡：哄睡助眠安撫苦鬧搖籃曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95599c98cb14d5226ea05c1e5353da1fd85470dac70a2c389735879d9116fd54. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:12:18Z), 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/CNZ852302573.
催眠曲5分鐘入睡重度失眠：助眠音樂快速入睡
啓蒙早教0-3歲：開發大腦｜幼兒安撫放鬆輕音樂
胎教音樂孕晚期：歡快愉悅氣氛｜幼兒早教啓蒙音樂
鋼琴曲純音樂：歡快愉悅氣氛，輕鬆快樂時光
輕音樂純音樂：悠閒放鬆時光，愜意生活
影片背景音樂：輕音樂純音樂｜輕快放鬆
幼兒早教啓蒙音樂：歡快輕鬆的小曲
早教啓蒙：開發大腦｜寶媽必備的輕音樂
新生兒早教啓蒙音樂：輕鬆歡快旋律
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8974174bba181db8e08844a8418c7a0c8a942b49d49566bd2e0193300eb661c8. 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/CNZ852303146.
催眠曲純音樂很快入睡：嬰兒睡眠純音樂
嬰兒早教啓蒙音樂： 益智健腦｜胎教音樂孕中期晚期
幼兒閱讀輕音樂：學習背書刷題｜歡快喜悅放鬆心情
0-3歲幼兒益智早教啓蒙：潛能訓練開發大腦
嬰兒睡眠純音樂：助眠音樂3分鐘入睡
助眠音樂3分鐘入睡：嬰幼兒搖籃曲催眠哄睡
幼兒益智早教啓蒙：促進大腦發育｜潛能激發
輕音樂舒緩放鬆鋼琴曲：輕柔旋律緩解疲憊治癒純音樂
輕音樂舒緩治癒放鬆優美的輕音樂
嬰兒智力開發胎教輕音樂：阿爾法開發大腦｜寶寶睡前安撫輕音樂
學習輕音樂純音樂：靜心刷題舒緩放鬆輕音樂