is a five-member boy band active in Japan and South Korea. The group was formed through the survival show The Idol Band: Boy's Battle and debuted with the digital single, "Over the Rainbow" in June 2
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 0x9047e654dc2165acccb2ce355007ce54c96f45af765fb90a9e74d18633150604. 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/3871a02f-1927-47b7-94f9-41568801a81f.json and https://artists.proofprofile.net/proofs/artist/3871a02f-1927-47b7-94f9-41568801a81f.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 0x40f231a798995a73768aa608c6c388f5a9181c84bad65d0ec616202ce687c64c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:53:15Z), 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/JPX752302118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2214f0d09a2df0fa65bb3a672b3cbae2e61e5beca2d797c14a4bd670c4ca6240. 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/JPX752302119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f480a1acdf9ad18f33ceb9ba1168ce110f78f722ada21166ee34bb73aea1e9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPX752302120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce709471c6eaa25635a28cc611896ade89bebcc0517d03a755e5d6d0516634b0. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:43:37Z), 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/JPX752302121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f231a798995a73768aa608c6c388f5a9181c84bad65d0ec616202ce687c64c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPX752302118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2214f0d09a2df0fa65bb3a672b3cbae2e61e5beca2d797c14a4bd670c4ca6240. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/JPX752302119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f480a1acdf9ad18f33ceb9ba1168ce110f78f722ada21166ee34bb73aea1e9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPX752302120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce709471c6eaa25635a28cc611896ade89bebcc0517d03a755e5d6d0516634b0. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/JPX752302121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f969742ad6245f48e769f40cb2b4ba70f0c33fc45974956b07109e27181f40b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/JPX752302122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299a69c72072c5fafb7de76b68b68ff7fde8370a4dc6915a04c25b20afec2876. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPX752302123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa198a49dcddf548888e58d01f4900b5d922fc0d9bbb7e097d58d2e0fb821a076. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPX752302124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f969742ad6245f48e769f40cb2b4ba70f0c33fc45974956b07109e27181f40b. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPX752302122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299a69c72072c5fafb7de76b68b68ff7fde8370a4dc6915a04c25b20afec2876. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPX752302123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa198a49dcddf548888e58d01f4900b5d922fc0d9bbb7e097d58d2e0fb821a076. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:29:17Z), 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/JPX752302124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ea059b9ae067cfc96df68db58582f546a040066e4a60bf48b29b0493ed4f16. 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/TCJPZ2417149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39de4f051db73cc9af74448d40030bbf11a792ae557889bf891772a7e6b8760. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPA2448073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39de4f051db73cc9af74448d40030bbf11a792ae557889bf891772a7e6b8760. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCJPA2448073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e13e04d46ff8d3c28dbd737cf5f9440e8ad28e8339acbac64efa18e9cb3148. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCJPB2413960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e13e04d46ff8d3c28dbd737cf5f9440e8ad28e8339acbac64efa18e9cb3148. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPB2413960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd10f8877504fb2d3c8eea6217e2571369977387be1c917acd8d2638a38d1ed. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:18:32Z), 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/TCJPB2460519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb33a328998d88163c7531b47ba1cf6ad1ddd10944c6c79dbe0123c835b7bda. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/TCJPB2460524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3872f9686a2d5459787f88afd36a4633f93edf5df77907072d6b7078e53cf6b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPB2460531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cf4c2f82014de6b08ef5c4b0b477124161067c75ee9013481dcfac04b13320. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:23:58Z), 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/TCJPB2460533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481175cbc683b8e4c5b40337f0eead2d0300648ea9a72cf41f2a13c9479a7dfd. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCJPB2460535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094afe0abb3e619437bedb0cadb498934154dba629561d34406da41866264b0d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:04:35Z), 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/TCJPB2460536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedf260fd85b5aac2337618a8280b850abdd99cc3a60231ca324eb5501166413. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPB2460540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3872f9686a2d5459787f88afd36a4633f93edf5df77907072d6b7078e53cf6b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPB2460531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cf4c2f82014de6b08ef5c4b0b477124161067c75ee9013481dcfac04b13320. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCJPB2460533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481175cbc683b8e4c5b40337f0eead2d0300648ea9a72cf41f2a13c9479a7dfd. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPB2460535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094afe0abb3e619437bedb0cadb498934154dba629561d34406da41866264b0d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:47:58Z), 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/TCJPB2460536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedf260fd85b5aac2337618a8280b850abdd99cc3a60231ca324eb5501166413. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:05:28Z), 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/TCJPB2460540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c014abf5859a1e38e3d6f72243f83101beb47b8a5a142fca1c4c0217e9edace. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPU902501027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c014abf5859a1e38e3d6f72243f83101beb47b8a5a142fca1c4c0217e9edace. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPU902501027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1dafe6affa67f800def5d86fdcdc3486660b7e838c8697a030abc70a4dbdddf. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPU902501028.
Spring of Youth (Original Soundtrack) Part.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944275516d585f8cf475c41f98b1a11f6d3da1b2ddd2c3c0a684151fc64aa31d. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/ZZA0P2517178.
Spring of Youth (Original Soundtrack) Part.6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cd3ef592eba9045c19ee4d8f888f83f9aaf53158de7af4e0ac07d2923329ab. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QT66J2561486.