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 0x8a9d462334e182eefbe1c9faf40ca491afe7875fcd84280138983d8d8a907feb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2ee34ff-e68a-404e-8747-3099c8e23a08.json and https://artists.proofprofile.net/proofs/artist/a2ee34ff-e68a-404e-8747-3099c8e23a08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
深く眠る ・ 夜眠れないとき聞く癒し
睡眠導入音楽 ★ DNAを修復する周波数と癒し[528Hz]
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 0x8d3186759714b6f637aaeaff93ba0322f5537a1b1d36056e9120852a003b0188. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITLU51868263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ea8eba2b810f8ec501b2b9a1b6dae2b1d1f15807e356fb2d9d3c4b51ecac60. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ITO101919454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28bc288612530a69c71dd7aa0c2f82974502eab6b0427b12185aa7efb017d22. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ITO101910201.
くつろぐ音楽 – 耳鳴り緩和のための白色雑音
仮眠用BGM - 睡眠の質を高める睡眠音楽 (地下鉄で)
大人の子守唄・睡眠療法，ストレス解消，脳波
不安から解放してぐっすり眠る・リラックスして快眠できる，眠気を出す為の睡眠導入
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48a1b137226b2134e381e27f1c3d2939c1f99f5b0575f57ad1c74a178ff0513. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ITO102019441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38fc6d84e42c23daee827944d7df1bb57b9276f84624f10cb771914ca953d27. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITO102019442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b09a8decb02ee187c3aae2574905ce54e03877d1fb2c903b1d03609b252adf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITO102019443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4628bd8db416e351a459dc9ea7d3d6c62bf7cc355bed59ae17bd3fa7a275e24. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ITO102019444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9ec0e39208d22b64bac708665b90662057d6aa61ac6ff08c97c439a7314f66. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:48:10Z), 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/ITO102019445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e7d2c596b858616950eb0b1f632944986b0db43f330ad0a8c45ed9d50fce02. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITO102019448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bc450d61ee57476c1ba8ba20cc60e9ed61d24f375c7515d122940ad62e09dd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ITO102019450.
Stretch Music: Relaxing Music to Relieve Stress at Home
眠くなる ~ 眠りに落ちるための音楽
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184cefb60018c926ba020f3fa43d6315fa56dc67ed5afe6e185f9bb96c879510. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITO101545539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12fdf42ad7ed8f60360470d6d8004aea694934b1457e692788831d5c9cc898d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:42:47Z), 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/ITO101545545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191ce3a7dce63384bc39e0170f987a91c91b83f651b4dfefc864d2083abdaf3c. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/ITO101545552.
睡眠効果 せせらぎと野鳥のさえずり ホワイトノイズ音
勉強用 せせらぎと野鳥のさえずり [癒しの自然音]
大人の睡眠助ける音楽：睡眠療法・不眠症改善・何も考えずに眠る
瞑想とリラックスのための枝垂れ桜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c8b09b1a733bd04df8d046ac5c10085739299f2f543cab6da9a5424b82dc75. 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/PL39J2128467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206c4d9fae7f03b1ffdc23b1787f54486d67f884586c4f667748fac17b7ded63. 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/PL39J2128468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a488720bd7bc174ea266985cec7bf330c450310840a550b349750c1ab40fd15. 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/PL39J2128469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdb464bac8f379ebaa432fc88f4a58a933b30b7c03fe31842550e0397f8b832. 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/PL39J2128470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031fb9c267302da94a8c4b04d2445e4dca95c090937d7473d85f4fcc99f809fb. 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/PL39J2128472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3e2fec3533165966c29bd736a0f36635d826cb2b2546aac89ee996532b6142. 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/PL39J2128475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9690b2e89d56afc1e3f1c65f099f6d113f6bff49fe40cb6c46dedf03caa5d7. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/PL39J2128466.
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 0xb439e9497e0f29d09a91c9cbebe0fdf2f01b5f3076758c167ac4ecf325d198b2. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/PL39J2128471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e9f46b8db16fd41b06aabc74564700d8143599a991d97795c1e3a05d431d2b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/PL39J2128473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1c907151fe6e849d8e0a44104a9635c35fe8be1d04c79b12262571d19eed88. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/PL39J2128474.