thumb|Bus with all members of Candy Tune on the side Candy Tune (stylized in all caps) is a Japanese girl group that formed in 2023. They debuted with their eponymous digital album in March 2023. His
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 0x2a46096a79c15321408bd10c6198ea6a39d0c3a913011b65c52de7fff029bf7f. 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/0505c538-547f-4864-bb4d-304f2cde08e7.json and https://artists.proofprofile.net/proofs/artist/0505c538-547f-4864-bb4d-304f2cde08e7.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 → 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 0x8cd2d8697dfbad16310668dc75a07aec04cfc6799c58cbd21e6c38309e1a0b0e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:35:35Z), 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/JPR842000179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe561cb8a5a4cb92a5ad53e80730fa07fc6c7889e51a6af0ee3595a47edd5607e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:56:28Z), 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/JPR842000181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3935e2d21889005d3266b1a88313194b3da9b9fe061930b460bf12d7026fce. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPR842000183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3935e2d21889005d3266b1a88313194b3da9b9fe061930b460bf12d7026fce. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPR842000183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b81bfa9b7469654b7ad3e25a13a50e1338423fab672156ab5d2abe21276e5c4. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/JPR842000195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab9ebfb88b83e3c93289181da2047b58dfa7555c2157bdceb58b1335997e01e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPR842000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a20e40698acb2b3263903374e19a579cf253c97d1b8bfc0bc2c8837c3770f6d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPR842000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298c339f910e787b6e2d8394ee30b836c53936451281003faa923b2ae6794940. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/JPR842000232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c48f13eabb26361326ecd107b9fa6ae55e26f9dc787d29cea0d5c16b7bb91ba. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JP92L2305780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe853ab36679c7d0bdc589a610326e4c668d0573a1aaeaf249847b591bca508a9. 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/JP92L2306280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe853ab36679c7d0bdc589a610326e4c668d0573a1aaeaf249847b591bca508a9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:33:18Z), 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/JP92L2306280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb6c16603fb555363ba46f2c6435cedc84337b007aaf7f00036a83b08287019. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:08:48Z), 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/JPR842400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b82a193e05cba0d3f069d6dc768452f80ff2f957760236b705ad1b4cabc3b21. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPR842400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e03c2562a3eeb9a24bf3d95ac82d12092e071ca6ee6f2bc1d72bb264b09342. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPR842400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c49b43a16595ab320f81d5e01bc78cfe77da21cd251a931098084c01294bd0f. 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/JPR842400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2215695ce1ae82416b1731ddeddc7d76d5862ef23f3154399c5de8cac3f648bb. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPR842400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87de8f6d37b42b212c7d20ddd1a381e303622e4d32fce2d377c4cae0051697b1. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPR842400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98a02c9b8ee320c45779d698aa673bfbdcf84a58da8099ff6d7330988d215fd. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:42:31Z), 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/JPR842400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd02fa760b8958a41d1f16b8ec5bc1ed6e861aab56a00d660a13a64990d1233. 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/JPR842400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa517db2aa704eae22ea9cef3a5027c12f3db31286de4bc9233c0fdd532cc1cdb. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/JPR842500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4cf359228be59eaaebfb23550cb3702988902a00a66da54d876f98348c2e5e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QM6N22506360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e545ae4963df2093fd426d0322fc6e71ad2f408542683065ecabd521de6a1b. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/JPR842400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd239db129b153747e77fa33ea2c31e870ee5c92c2e255f3b91a412efaee6ce. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:18:06Z), 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/QMDA62539143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410f94b687333359b149abfee8ebc638ccd1f3f18388f3653ef6fa93720a7f89. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/JPR842400192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ed3ceb62cea289cff8346b1d468ad5427e9ce33ec7f69d74b8e1cce15b037e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JP92L2305790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4cf359228be59eaaebfb23550cb3702988902a00a66da54d876f98348c2e5e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QM6N22506360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190e3eb4f099ced6295f7b350d447b67bee149d85bf5605f4cc7825ba2074c1c. 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/JPR842400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc0903dd631cd7751e299d63b779e51830b192221ffc65f762d37538fe359dd. 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/QM6N22506361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723555eddd75eb428bd3877e1493083e451ea2d3c1146416e4f39d4f302206de. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:40:01Z), 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/JPR842400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdb110cfb4379c8197e33521ba8d341e61016ba5e378063d30388aafecfeeb6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPR842500146.