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 0xc93720de89bd07aaa78f5b8eee2b8aef10a8dae2e3433215533572017f098548. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1626881-d846-4723-8de6-6727549feebb.json and https://artists.proofprofile.net/proofs/artist/c1626881-d846-4723-8de6-6727549feebb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
その時、世界はキミだらけのレイン
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1deaa8377e9ee70d46d8da64a00a7dd72d31c8fc1a1654ea15f071ff2e8d8541. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1KmOG3XXfUhCXJV30hg0JF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1KmOG3XXfUhCXJV30hg0JF.
EVERYBODY SAY YEAH! ～Takkyu Ishino Remix～
EVERYBODY SAY YEAH! 〜Takkyu Ishino Remix〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d3097f9006b437f3f95a0b16ada848a53bab7ef6f0da39c47726a81c639ac5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1CMWCsrQYHhnfe4VZA2pNa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1CMWCsrQYHhnfe4VZA2pNa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6712cf98f451e34454b6500d52b4de91301b7b7d9a489f4c0d3d9daf49f2235e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/140oCG4kZ4xZxWx6AhhBFV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/140oCG4kZ4xZxWx6AhhBFV.
Kimi to Yoru to Namida Billboard Live Osaka 2017.08.21
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45f2daf72e1cc114d0078bbef148c37b13ca17220772b44c97be52707cedbf7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7lfadzMscfdiKVsmQZi74d.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7lfadzMscfdiKVsmQZi74d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a01720b2180627fe24741980e842a0ec9e01ce561924bb43cb543d6020a6f1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3DSAxCJkd2UQhXyyNFnb3U.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3DSAxCJkd2UQhXyyNFnb3U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6712cf98f451e34454b6500d52b4de91301b7b7d9a489f4c0d3d9daf49f2235e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3PEakWHFsXksYcXN4KjkI8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3PEakWHFsXksYcXN4KjkI8.
ケラ！ソン 〜KERA SONGS 13th Anniversary Collection〜
私とドリカム －DREAMS COME TRUE 25th ANNIVERSARY BEST COVERS－
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb9dca672e110da91de9c718518638df6942b0791631a1a6683991ae4474a35. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Br9mmmSVFntfc608daV9B.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Br9mmmSVFntfc608daV9B.
山口百恵トリビュート・セレクション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15057446935b4ca9b9f5a636ee1675b96a1b156c6d96eec357a2fa05c1082de3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1QYuWoyWphBbuBwUe4rceW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1QYuWoyWphBbuBwUe4rceW.
JUDY AND MARY 15th Anniversary Tribute Album