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 0xb5259119170f833fc18ad77dfe23ab9d18777a2aba7f161bfbeded760ded706b. 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/0f99e33b-bb87-415b-8c44-2495a9e3acf0.json and https://artists.proofprofile.net/proofs/artist/0f99e33b-bb87-415b-8c44-2495a9e3acf0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ネットハイ オリジナルサウンドトラック
TVアニメ「ぼのぼの」オリジナル・サウンドトラック
Dramatokku Nishiogikubo MitsuboshiYoshudo Original Soundtrack Best Selection
「アニメで分かる心療内科」サウンドトラック
[anime de wakaru sinryounaika] soundgtrack
Drama "When I went to a joint party, there was no woman" (Original Sound Track)
ドラマ「合コンに行ったら女がいなかった話」 (オリジナルサウンドトラック)
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 0xe393cde2dcbdf8f05d53c5a24ded6a6b4bbd90222d15e501248a98e8f490cedf. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCJPU2339485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7065039a1b99d148f004080d348d210738b61d39ca2bbdea890f89b62f3858. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCJPU2339489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5ecd7c3faa4f8cbfbcb3503b0bb08c79221cd2893e1a6cb9453f4acba61114. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/TCJPV2350548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e85487b18942bc1552eaaa654168872a0268a85bc7d7ca85a34b988777686f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPY2309924.
【仮眠・昼寝用BGM】α波で疲れた脳を超回復2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc47cfd1e3df9d237506afb9e7ede1df63dc7c03c1c280cb7e9eca3a8e3ac9c4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCJPY2327163.
Layers of Focus 24-Hour Online Study Room BGM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08baea6e53ab195781aeb5a687dd1bb395abb17bb67b9f732f3332fcdcdc1cfb. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCJPD2542452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d69310c3d654241ffd05455f45a8a1e2a0c751c3c73859b0bb1a42808257c4. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/TCJPD2542456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8fc7424ba5b64d323ff5f20d3e49933183a7e3af29acf4bab844b33b221807. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCJPD2542459.
Stellar Synth Cafe - Chill & Cute Space Beats for Work & Study
Midnight Window: Quiet Nights in the Rain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59420fd129a254ab2e4d357a8757ba8ae375a6d0ebaf2d283752333acd584a45. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QT66J2514630.
Re:Compose Vol.1 – Chill Jazz for Study & Relaxation
Re:Compose Vol.1 - Chill Jazz for Study & Relaxation
Re:Compose Vol.2 - Lo-Fi Nights for Study & Reflection
Re:Compose Vol.2 – Lo-Fi Nights for Study & Reflection
Re:Compose Vol.3 – Lo-Fi Travel Tunes for Focus & Calm
Re:Compose Vol.3 - Lo-Fi Travel Tunes for Focus & Calm
龍が如く 維新! オリジナルサウンドトラック (Vol.1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5ddb92c58d6c00c5b6743ee1d3aada48a66a3e29086a3850ea3c4c1f82bd81. 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/JPR501408335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14decf6e73ba9df05cff9047576a49707e7e8795aaaf718c2ebb869b3418f1c7. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPR501408329.
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
Street Fighter V Champion Edition Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db729531f4c5cf7e179cb855e10526cf273530434374cbed9b8a013fd7e5fed. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/JPE102002810.