Piggs (Produce Idol Go to world is Good Society), is a Japanese alternative idol girl group that formed in April 2020. They released their debut album, Hallo Piggs, on July 1, 2020. History 2020–2021
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fda911ac5f371be5a85b4b983db61b736bf84dc1c746a06a9a224d891bf552. 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/f36a99f3-79ae-4080-bc14-e654b8f8319d.json and https://artists.proofprofile.net/proofs/artist/f36a99f3-79ae-4080-bc14-e654b8f8319d.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0358d98e43432d6bf3f3978716f700d6ec7b4dee4aef4d10b8062a6be622e90. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/JPM792001276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cd699dbf78e6dce9587c3ab1376b629901e2b87ebfda7632e6db6445968fad. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPM792001280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23993c6ffd320a9962a36f1731da75edea90701910cf8a4d9641d624aa77d29. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPM792001281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46a3afc99074c095b0df932538c0f821a9554baf4b2ce3b025dc5b02deb0cbe. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPM792001963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf840aef2543639b6309cf1870a570df827c407701d17f93a443f81da9233a5. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/JPM792001964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebe0c8c5af3158e95df8278245608a77e8278c5f66c5fdf63bcd2f271bd9a5a. 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/JPM792001966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea330757575e68fca308601c3a2e4556700d83e4a104d4bfeda9d0538df278d6. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPM792003037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09fb366921d64c605afa39c1bd0c867b5e6f3c5c0ed1dce13efc7118c32b6fc. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/JPM792100183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07b7fb1b2f148ab9b28ea2177b9b33ba766c63a7f9ea694fce177b7f2f06b9a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/JPM792100184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad49e848ca6ceeea232f094641748d1a0c7038af5b9a276cde78f3d1cf774c8c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPM792100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f74c5dea02ea14fa3fa00dbe3475c38b933a03e16638498225c3de81fa3109. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/JPM792100187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75547ab610c797be981c989f2bab2386aa6ef1cb22e99a8b134bb5c1e497d03d. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/JPM792100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0b594c742bbf78e3c2131f7d20bb3d97246f0f035289bbba630ecdf9c893c5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/JPM792100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e31d3168639f07d86ed7af027d0ac4dc88000d033074228eaa6bae5b17330e. 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/JPL542200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8602c13272f2a468a4d0fa436794f45ee454b591928b5eed1bc1ba80d865fc. 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/JPU902203263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99956d2a1637523c7e8a0d74f3032e0028597961724c3bb72bec3f25fa8a22e9. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/JPU902204990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fb386e12a83a8887534893cec5077be20b1144ca108d9ad7d4844022544edd. 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/JPU902304067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8b719f21ac8b9aff4fe2db7fe25c0b64564622be8b2b2adbeca268968627fa. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/JPU902304069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536b077c3012906108ce8c8170155374c997da40077a4de43b0c80da5ca955f1. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/JPU902304070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86189528b253b6476c7b24f60ab5c44804faa5c0f4311bdcee8e28ee26584f7b. 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/JPU902304071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be75d8d7c37ee5d52a011e32bb2d4631d8cf748010d504c81cc056bce96fb2c. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/JPU902304073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5543d221ddec9df6b425f3789bca7ff3bdad0891379837aa945f7fa714701cbc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPU902304075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b5e328a083de1b9c7e9bba3370211424788186f79727b1bfd51f480d16e76d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/JPU902305452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad3fadb830d8e1dd1873ee93935c353e41c53e854f531f091d878b2dba24b3d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPU902305454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f50f4e589b1ded5292a35708dfc7b63551d85133c1aea4457992277e4bdd51d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/JPU902305455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef29e89ea76bbfa92f450f5ffbf4a9d88d523351f36ed7d5fe62b032c9cc8fd0. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/JPU902305456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309efec39bb1e76b6f2135f9619ecf07121c1cd04c069ae7eb62658ab2c5ef3b. 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/JPL542400354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a17583ae4ff3241607bcc22d912b9e6425a0f01826f17fd7c979d182cb4e22. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPL542400463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5632687bc979d1ec7d143730528644f43b5e6e0590bacda9af80ed55e39fc2df. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/JPL542400529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8e736643cc13f11035489c44acd702fdcf6ad16f7ae0467b3737d1d0e8f660. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/JPL542400530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a1361c1ca25181172aa0bcbe4acb552eed5bcc071621b4a48434f22f899f43. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/JPL542400528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b7e4b9703fb2cb7afcb43aa92b105375de11c392b19c638c4dd3af917f97f3. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPL542400954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff2f4097bb730dc087549ca875561b06b16c7af3d4658c713ba21a64de12481. 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/JPL542400955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996a3eee6098330539c5dac1fe9dca42fe25e29925c59ba4957d9d60fb16818b. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/JPL542401426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996a3eee6098330539c5dac1fe9dca42fe25e29925c59ba4957d9d60fb16818b. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/JPL542401426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b6e584abbe26e8f8e02d4720ce8905245aa13c255652b99f8a1d580cf61ec3. 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/JPL542500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56c78fa7a8af3ebfa093339671b21dfebb13d19c0006e8d2060038c69311897. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPL542500527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c44f283df572d8a5e68355dc769db83f2440c31964318139dc91023538bfe57. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/JPL542501042.