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 0xfcc43929a42b9aa6ac13218162af3b7ca2f47d39fae49dad3788610336f090ee. 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/eb154a02-279f-4e1d-9331-1cfa29cf14fa.json and https://artists.proofprofile.net/proofs/artist/eb154a02-279f-4e1d-9331-1cfa29cf14fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
THE IDOLM@STER SideM ST@RTING LINE-06 S.E.M
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 0xb4ef76bb134a6d1c3ff090d439720a83605fbf4becda510e915df77dd9b4a293. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/JPI101501832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37701d6566dc1338e869b8d6ae64706dbb0c591cfafad56561f55bd2ec1e0416. 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/JPI101501828.
THE IDOLM@STER SideM ANIMATION PROJECT 03 From Teacher To Future!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adcefdce6050280aadc0a0e5b9bacf5baff678269d35eff0eabb4011694c66e. 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/JPI101702456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7b2790e63f5452522b4599ab9fb06fe42a810a56a8942b44d3408434dc6a96. 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/JPI101702457.
THE IDOLM@STER SideM NEW STAGE EPISODE：13 S.E.M
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e8ac7b50e60140ad1c693be170d3c44192d609f7f01930e4b386aa53c50521. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:39:23Z), 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/JPI102100789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc90199054faefbb4d8f2f7b17876bef7310bce15d9b0c6fc1eace0763badc6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:00:14Z), 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/JPI102100790.
THE IDOLM@STER SideM NEW STAGE EPISODE: 13 S.E.M
THE IDOLM@STER SideM GROWING SIGN@L 13 S.E.M
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacf4e46a1ed33e4fa70d8eb1bce0f00cf3021e4a17eb5562e91e8fa51f9c125. 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/JPI102201751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacf4e46a1ed33e4fa70d8eb1bce0f00cf3021e4a17eb5562e91e8fa51f9c125. 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/JPI102201751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9379dbd8aa7acd738bfbce3e861bc9c791b93430be90b58b1121c64233da3b3. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/JPI102202390.
THE IDOLM@STER SideM 49 ELEMENTS -14 S.E.M
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1dc047a74654ae5fbc9f6278becf42f316d3676536134cba1c1e60439ec983. 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/JPI102301736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa535bd9a883311ff88f2270c9ee039252804bd6f7a6e635267c39488fa6831c5. 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/JPI102301737.
THE IDOLM@STER SideM CIRCLE OF DELIGHT 15 S.E.M
THE IDOLM@STER SideM 10th ANNIVERSARY P@SSION 12 S.E.M
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6256e69021dc5ce2e6e917cf6a4ecd888aa993669259e45d9a35334f3a3fc542. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPI102500491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37701d6566dc1338e869b8d6ae64706dbb0c591cfafad56561f55bd2ec1e0416. 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/JPI101501828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb66ebabe82c77304c792130d6335f9c4ff90ec27bb3ebec17af518d2e7a9f1. 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/JPI101501830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b9033466e0db6144fc4949a5577977d946816b09758663d65c86fb198f10e9. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:09:58Z), 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/JPI101601533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b8fa75fa54aa4874623711a88362b8b5ef62f537b782e825940989831c56f1. 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/JPI101700177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adcefdce6050280aadc0a0e5b9bacf5baff678269d35eff0eabb4011694c66e. 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/JPI101702456.