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 0xeeb79d7c74fc4eab742d5b83eeb472ae2788b4767a916df22327f429bbfa9d7d. 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/e97a9da5-8169-4ff9-9ca4-4f9900a5851d.json and https://artists.proofprofile.net/proofs/artist/e97a9da5-8169-4ff9-9ca4-4f9900a5851d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
THE IDOLM@STER SHINY COLORS BRILLI@NT WING 02 ヒカリのdestination
THE IDOLM@STER SHINY COLORS BRILLI@NT WING 02 Hikari no destination
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 0x2b38cd3af4218a6c6804ae8def8bdfaa237752372b7f9bec73c5e4f2a4ddb919. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JPI101801603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85734c4eeac5ba899896e4cdc523714e7f356db3a5da9cdb1d8e0ec710ffc6e7. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/JPI101801604.
THE IDOLM@STER SHINY COLORS FR@GMENT WING 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dd201daf5703ca269dd4da353740571e31e94ea57705b6cb0fd15733e6c191. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPI101900733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32185f14cc18e16244894288ea262611a83eb90756a4c0f09b6f7282cc902ad1. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JPI101900734.
THE IDOLM@STER SHINY COLORS GR@DATE WING 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a9d079b6a40e365c12a20044fb2a23e1fce319d722dd4aad3fd77e43ba53a1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPI102000594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7145033287ae2c13d2b3e5b564119bf3c4f83479aa069f46ff9c958cba75a54e. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/JPI102000595.
THE IDOLM@STER SHINY COLORS L@YERED WING 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bac832349ad4dd8ce230f544ccafd9c5a5be2791e48d67a785b5076429e8d2d. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/JPI102101025.
THE IDOLM@STER SHINY COLORS Synthe-Side 03
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf58243d3c9e913d7a648f4db50afc7a1737243d9656340dd6bbfda89454cc0. 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/JPI102200529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339824f2cf217e4875a3d6f129b63bdb20329b8196bae2babadf97b030a69ee1. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/JPI102200530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00481a6eb69aac3b78f30b1889d011fd6ad07fb96f1fa626766e8db2d91534f2. 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/JPI102200533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac386c2621080e3d7768e4b7cc59c11d2f82c6ef51f30d0cdc2f97bfdda6401. 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/JPI102200534.
Secret utopIA - NICHIKA NANAKUSA Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3ab65bb13ef8730790ee8428442a3821038daa005b2311fac1fbbc49ecff0e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPI102200536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d27c414850a4b19395eeadbd89c02586e45678366d62fe80a640c595b9add1. 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/JPI102200537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3ab65bb13ef8730790ee8428442a3821038daa005b2311fac1fbbc49ecff0e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/JPI102200536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d27c414850a4b19395eeadbd89c02586e45678366d62fe80a640c595b9add1. 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/JPI102200537.
THE IDOLM@STER SHINY COLORS PANOR@MA WING 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c85c2432b1dfb955c4d33fe0d4f55030dc02799ce4492bd294d0ca7986e1a3f. 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/JPI102200794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7501237ce1b7f61dd343de06b3f51d12e53347e0d0b27666fe2073d8486d911a. 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/JPI102300486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71963b8d7df26684f75c582597a1a8d3636e6d2095185fee05ed098578bcbb6. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/JPI102300488.
THE IDOLM@STER SHINY COLORS Song for Prism Shower of light / 快盗Vを見逃すな【イルミネーションスターズ盤】
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04333087092e996df042fd0551d6f9699bfe8fb433686d57b66fa64fe1ebe0a. 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/JPI102402172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9749ecf2e600e809be0f1aa2cac459f31343113a03d4af5c41de95c9bec96a. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/JPI102402175.
THE IDOLM@STER SHINY COLORS Song for Prism Shower of light / 快盗Vを見逃すな【放課後クライマックスガールズ盤】
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef7caac45d4e94722981e43fc0386ecce06d4857d206a0f37ec10b29251e703. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/JPI102402171.
THE IDOLM@STER SHINY COLORS "円環 -Halo around-" 04
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dd257e168038b4fe37d34be70d9f671aabff0f3e4625fcf7d516eb70041c6a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPI102501903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830c932ea644f6409d396382e08f1222603f9d60e036045f13bb627fcb52095b. 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/JPI102501904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db3d1b4f2c36f922cb8e564b42149dc4f398b4b42f74a1b4f3f2919c5e982d4. 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/JPI102501905.