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 0xc42f323f52c810f0c6e101980af718ec5413d87ebe96df79d5622e1c18edd075. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e676b926-9250-4651-bdcd-d03a75c98f02.json and https://artists.proofprofile.net/proofs/artist/e676b926-9250-4651-bdcd-d03a75c98f02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
WORK OUT R&B DJ MIX - selected by EstyleLAB -
BGM for work and study that makes work progress - selected by honami matsuhashi
仕事が捗る作業用・勉強用BGM♪ - selected by honami matsuhashi -
BGM for people who use it in the morning. Concentration improves! selected by honami matsuhashi
デキる人の朝活用BGM♪集中力UP！ selected by honami matsuhashi
おうちでお仕事♪リモートワークが捗る！ selected by honami matsuhashi
冬の休日に聴きたい Chill Music♪ selected by honami matsuhashi
雨の日に聴きたいチルミックス -Rainy day chill mix - selected by honami matsuhashi
WORK OUT DJ MIX -STYLES- selected by EstyleLAB
WORK OUT DJ MIX -COOLDOWN- selected by EstyleLAB
WORK OUT DJ MIX - CHILL OUT - selected by EstyleLAB
Unrequited love selected by Honami Matsuhashi
WORK OUT DJ MIX -SELFIE- selected by EstyleLAB
WORK OUT DJ MIX -GOOD SHAPES- selected by EstyleLAB
WORK OUT DJ MIX -FEEL- selected by EstyleLAB
夏を感じる癒しの音楽 selected by honami matsuhashi
カフェ気分で勉強する時に聴きたい作業用BGM selected by honami matsuhashi
バックパッカーが選ぶ 思わず「旅」に出たくなる音楽！
HAVE A NICE DAY - selected by KENTA TAKAHASHI -
疲れた帰り道に聴きたい曲 selected by honami matsuhashi
仕事が捗る 作業用BGM selected by Honami Matsuhashi
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 0x81f0e6da168825b4af5a0b0b3c281c7df4ad45d5403e4a5a21fd2346469b3873. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCJPU2357682.
LOVE SONG - Nice song for a special day -
集中力を高めるBGM - 洋楽 リラックス おすすめ 定番 -
晴れた日に散歩しながら聴く曲 - 洋楽 おすすめ リラックス -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ca7c6c20661071c784160b37b03fcd6f93b7a749eeaf1c3735c8900ac962cf. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/TCJPU2394113.
EVERYDAY - 洋楽 おすすめ ヒットチャート ランキング -
放課後に聴く曲 寄り道して帰るときのちょうどいい感じの -洋楽 おすすめ-
夜のドライブ - 洋楽 ムード 大人 おすすめ -
Where are you go? selected by Hikari Minase
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fdf1a76d85b7268caf39bdc9c0ec77de7910124050581a831185a982035f3a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPV2364833.
BLACK BLACK BLACK selected by Hikari Minase
サクサク仕事が捗る 作業用BGM - 洋楽 おすすめ -
BGM for work that makes work progress quickly
BLOSSUM selected by Hikari Minase - 洋楽 おすすめ 定番 最新 -
MOMENTS OF LOVE selected by hikari minase
夏の終わりに聴きたい ラブソング