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 0xe76bd5f21a27492b3b91db57cdd4a4760529a93c5b668f4faf1dd888835ea379. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46cca09b-a236-47c2-b3a4-18df480652a5.json and https://artists.proofprofile.net/proofs/artist/46cca09b-a236-47c2-b3a4-18df480652a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x121a11275438fd774e2306eb444ef4df9034b02dc416dd3ba0e2cc27f4c559f1. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USFP71442102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d438a390cc787632182d82db0f972beb3d2dc2ad8b4114423bb1f78b8e77d1. 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/USFP71442103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ed56fc04f9feb774cfd6c4b208a77aa8ca711c3f1c17c5119f773e2867fa42. 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/USFP71442104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82ffedd0ec572b6c87f73a0614902c013ae1ded1ec1f1188259c0a8ede50afe. 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/USFP71442107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1476e7b3bbd4c375046d76b7ca7f5f5a385cfe6d20a1ab6af5529e50d0a51f10. 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/USFP71442110.
「TSUKIPRO THE ANIMATION」ENDING THEME SONG COLLECTION
SolidS/篁 志季(CV:江口拓也)、奥井 翼(CV:斉藤壮馬)、世良里津花(CV:花江夏樹)、村瀬 大(CV:梅原裕一郎)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0193eb224c0b534078b3e3f18d3b7ae4668826e589f131b83ee65ba1b5cc1f02. 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/USA2P2444641.
SOARA/大原 空(CV:豊永利行)、在原守人(CV:小野友樹)、神楽坂宗司(CV:古川 慎)、宗像 廉(CV:村田太志)、七瀬 望(CV:沢城千春)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4aa958ee2fb7daec4fe37eb24f877492a1fffa9225e413e2ba3043f9d1f219c. 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/USA2P2444642.
QUELL/和泉柊羽(CV:武内駿輔)、堀宮英知(CV:西山宏太朗)、久我壱星(CV:仲村宗悟)、久我壱流(CV:野上翔)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ad4fa9727f83bef910aa754e94758be81e08f360ce10862cfc147d9e8c6265. 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/USA2P2444643.
Growth/衛藤昂輝(CV:土岐隼一)、八重樫剣介(CV:山谷祥生)、桜庭涼太(CV:山下大輝)、藤村 衛(CV:寺島惇太)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdc95bb08abc971fc68101d6273fecd8b5f1ec9362c288e4a4a4eec68393a0b. 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/USA2P2444644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99584f88ef24b7e7f8249578237323d31057de8bd07e6d001889932feeab9305. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P2444645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3e630de260841331a72555d2df962014d6025b90dbb566207623f608efd847. 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/USA2P2444646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a2abbe6cb315ecf16dd2c260c7d2716a058bffc652ab21abfbd4f4027792d4. 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/USA2P2444647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea1d903d2f5c44b2fa54224190c902716ad85df2c40afaa2bf32ad331acb923. 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/USA2P2444648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656bee4b5a10cce8c4857301ab573264383ec2ef68e0c556978f4c213a747d97. 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/USA2P2444649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a714306a5bd85797f6b49fc82c100eec61a21840276b9915c3093e354a3ba5. 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/USA2P2444650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda84c7f8036fe07ec1fd9929a066a2b839b3a9bec6ddbaa81c1b3239097d3b0. 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/USA2P2444651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98768ebe5302e8ad6da52a5a4a215a0a414efa848e33c2b45b7124dc4a6251ea. 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/USA2P2444652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbb2d5c2e9178c505d6e7400a92c107478a42b730165125974fc7960eccea31. 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/USA2P2444653.
De Rock 'n Roll Methode 13 (Instr. Guitar)