Japan Ground Self Defense Force Central Band
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 0x9b1cd783259f4673c2c9406ab7287424b0dfd2d8dd6e9d279a4da87fb8d474d4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d976cde-0244-4a4c-87d2-aaa959966130.json and https://artists.proofprofile.net/proofs/artist/8d976cde-0244-4a4c-87d2-aaa959966130.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
NATIONAL ANTHEMS OF THE WORLD FOR BRAZIL 2014
Japan Air Self-Defense Force Central Band
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 0x64f39f5533261bc3bc3a499d4eb29ec316adb8bcfcf13e9beac0387773f990ed. 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/JPKI08914090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f39f5533261bc3bc3a499d4eb29ec316adb8bcfcf13e9beac0387773f990ed. 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/JPKI08914090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7366f50e32d7b03974298b767622764e8b4630a9eca7c0d1954e40a8b2b63a5. 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/JPKI00401343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189af0f72f9b194f6d2d88d97e806b6413a7ec9531b5a8f2cf148aeb11a9f919. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/JPKI08914070.
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
グレート・ブリテン及び北アイルランド連合王国（イギリス）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc818b751d03c972de3e85c31fccb504aca43c3575d01b308c32650dd11bdf0cb. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/JPKI08914110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79af54cb205fb54b66e9c1038b6926101e955093602a0912ab5e40a17bd2abe2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPKI08914130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379eee8a86cefc5474fbf0a8d645ad606e5911a3773ffaa3c0430e79c8f09014. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPKI00216970.
コンサート・マーチ「テイク・オフ」(1986年)
もう一度、みんなと吹きたい。吹奏楽曲集～コンクール課題曲編〈1970-1997〉～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3b21045305438f8d1bbf9246200802e31b01116bad386793725bdef1862a4f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPKI09212360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe292e016464571b04b2189db92e0b7d127435e2d1443a2067b2a0b97c5f31c72. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/JPKI09212390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084cfae0df6d9a96b8e94268d9ec210f0deb01dcc068026a5fa0e11cdc61d34f. 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/JPKI00813366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f5dc37978583cd7a0e2861eaaced27ae672561eb0edac47768de5ea0c53a29. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPKI09212400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede3df445d7fe218e6ba5ccd6414e3c4c9be99ed08d8c2df311db2b935a87955. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPKI09212350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6de211ec9fe92f34a326ea0a6bf24bf7bca4b46230a37f12a8758fbb9a053f9. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/JPKI09212290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd173dd80705bb67f4f2be448795216dc603f5dd9fbcfd4b4257ffb141343e5a4. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/JPKI09212370.
コーラル・ブルー 沖縄民謡「谷茶前」の主題による交響的印象(1991年)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e2f48dd65b2dbb9e7c9c070752f7656ca708f965eef8f18176e016c4265386. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPKI00813364.
シンコペーテッド・マーチ「明日に向って」(1972年)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa46bd6f0987b5eb8b8e6e0c01c80818397e0e42fa475a11b1ad5e1e2f30b5b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPKI09012490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c76af6f49c1607cdcb98c4f19394e2550d750c0f60494a1c352bc3486716d2. 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/JPKI09212300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf76a9d190dbecdc8fd8084514a7c9ea429b63cf8594d9e4af3ff536ab9a4d1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPKI09212380.