1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x3f32a913bc14f48e051e4802906a1dfebed6a49fe07cd1c2c8714b0a28357041. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58ee3771-98fb-460b-98ea-dd3e2ac7f4ff.json and https://artists.proofprofile.net/proofs/artist/58ee3771-98fb-460b-98ea-dd3e2ac7f4ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ダンスたのしくなりました。～子どもも大人もやってみよう!基礎からフォーメーションダンスまで!～
エブリモーニング～『天国と地獄』より
保育まるごと夏ミュージック～梅雨/歯と口の健康週間/時計の日/七夕/音頭
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 → block OTSBitcoinBlock must exist at that height 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 0x2554d3c871b3e096993536f6b36cd45a8834d5a7c369fef0d6fc901f74bdcab6. 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/JPKI09004040.
日本サウンド・エフェクト研究会
柱時計 ネジ/柱時計 秒刻/柱時計 時報
素読み&歌 流し聞きで覚えられる!九九&英語ほか
流し聞きで覚えよう 九九 1から5の段
流し聞きで覚えよう 九九 6から9の段
流し聞きで覚えよう 数の単位・大きいほうへ
流し聞きで覚えよう 数の単位・小さい方へ
流し聞きで覚えよう アルファベット、alphabet
流し聞きで覚えよう 英語の数、21まで
流し聞きで覚えよう 英語のあいさつ
流し聞きで覚えよう 雨ニモマケズ 宮沢賢治
流し聞きで覚えよう 寿限無(じゅげむ)
流し聞きで覚えよう 小林一茶の俳句 十選
流し聞きで覚えよう 松尾芭蕉の俳句 十選
流し聞きで覚えよう 日本の暦と干支
流し聞きで覚えよう 覚えておきたい国と首都55
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf535ac9af07472c3fc8f80dff226ddc5f2add80ebab78adccd3976bf699d94f0. 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/JPKI01016095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589eb287e9b3ad1459cb1476e8e45c1407d9ddc7c3e00a9fcfd75cad3dedb035. 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/JPKI01716208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe55cfb3c8fd1d420b26e7cca9a1e84d137598297e3d6c9b33923e8b02855fb. 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/JPKI01017910.
あいうえおのうた～ひらがな覚えうた～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e231d04eab66245eb665ac67575b5ee220cd2df75411977c72dbc2dd1179305. 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/JPKI01412100.
じゅげむじゅげむ(ユーモレスクより)
雪の日に聞きたい歌～節句や行事に聞きたい音楽まとめ♪～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6509a197d6d4b414bc3844a72a26f35b23409b98795aa6ad1fafc5511f0b52. 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/JPKI01820243.
レット・イット・ゴー ～ありのままで～
イントゥ・ジ・アンノウン～心のままに～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5e150cd2b72980b758ddc499a07f8483410409f9ef7e112b92a7f0ada51ebe. 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/JPKI09010840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9140b29fc89585297734c8f9b27a2ef37593851a951634bcabffcfded3b3df. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPKI08898731.
うたって学べるおぼえ歌～「ABC」から「九九」まで!～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f4b9bbd4e550f3f5266f1b13c5aeb8cb2638126436ce9d028ed034d6f0c1d1. 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/JPKI01110909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021a03f169804570e7b00d249778526c415a69db63c3a3b916b29670e0a31640. 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/JPKI01110910.
あいうえおのうた～ひらがな覚えうた～<あかさたな行>
あいうえおのうた～ひらがな覚えうた～<はまやらわ行>
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c2478940b81a2bcbc271c25b69dcdd6a8b8bd58a97485552ffa40f87f6af63. 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/JPKI01416519.
ぶんぶんぶん(ソファミレミファレド)
あたま・かた・ひざ・つまさき(えいご&にほんご)
しあわせなら手をたたこう(えいご&にほんご)
むすんでひらいて(えいご&にほんご)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba129818064a687ca9bc4483c23228d31377cbdd0c6361c84d1a64c96a8b152a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPKI01214911.
ホーキー・ポーキー(えいご&にほんご)
ハッピー・バースデー・トゥー・ユー(えいご&にほんご)
～ミュージカルだいすき♪～ 夢とあこがれの ミュージカル・ソング
ドレミの歌～『サウンド・オブ・ミュージック』より
私のお気に入り～『サウンド・オブ・ミュージック』より
ひとりぼっちの山羊飼い～『サウンド・オブ・ミュージック』より
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36625ef2679f00a410b0f4c69616cf850868ee582341f70b38de8ea754984e09. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPKI02013881.
スキンブルシャンクス(鉄道猫)～『キャッツ』より
信じてみなよ(オリバーのマーチ)～『オリバー!』より
ビビディ・バビディ・ブー～『シンデレラ』より
チキ・チキ・バン・バン～『チキ・チキ・バン・バン』より
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03a6300a8beb867d388b3ebc84fccda779a7cc0cf294725f360079bb3e60b36. 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/JPKI01817736.
パート・オブ・ユア・ワールド～『リトル・マーメイド』より
アンダー・ザ・シー～『リトル・マーメイド』より
レット・イット・ゴー～ありのままで～ ～『アナと雪の女王』より
雪だるまつくろう～『アナと雪の女王』より
友だちはいいもんだ～『ユタと不思議な仲間たち』より
すてきな友達～『人間になりたがった猫』より
雲の上のお城～『レ・ミゼラブル』より
ホール・ニュー・ワールド～『アラジン』より
リメンバー・ミー～『リメンバー・ミー』より
となりのトトロ～『となりのトトロ』より
君をのせて～『天空の城ラピュタ』より
いのちの名前～『千と千尋の神隠し』より