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 0xd04f5e9161079ae16463e13d04bd3d60226601a79873e7ce2d58e5aa16887d6a. 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/27ffceab-f648-4040-8560-6863173d5183.json and https://artists.proofprofile.net/proofs/artist/27ffceab-f648-4040-8560-6863173d5183.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 0x2830ab8e6a0a0086d1df7e44a8ef2649b77c531b193cb81584d91b3a5eb2c24b. 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/JPR800800485.
オーディエンスを沸かす程度の能力
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a4f28b2227aad85a7568a9f6939525f57bfbd0e00dc61536ee5657c0ea9ea2. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/JPTO00900209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae0dbe2768ce988dd5e981bd653cf6f718ad583e9e626310763297cc461ed2f. 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/JPTO00902073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f14c17cf5a32d909d22097532658009f7e5cbb94d88a95e306efb4243a090f2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPTO00902686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7e5377378431be4197de87fbfa9f0339621e42751357a569c822fb379e26c7. 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/JPTO01000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330b1362206357d620eebcb493fda4578620bea1980b78bb19596a73dd7e69f3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPTO01000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d8cb88a09a0c6d572d5edf1a6cb81e3794f38455ecd9524381833ff8eaebee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPTO01000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678650fd2d9ea563107cbdf178d4b9d7cb69bbc2f91f456aa230623a7d0c4bea. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/JPTO01000105.
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 0x8816bf4514a56b34d21ba65e1e552cae1bc0242728706172e8800bde29962d98. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPTO01000107.
All Day, All Night - ryo from supercell remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57787143958fb567a4ce4a8dffd6141009d5a0c4f57b08de9506e2c33e46a121. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/JPTO01000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec95731dc93c07b3941bea10b553ab584f337555ca6b9b52331967ce7b6100a. 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/JPW561907631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1499657f00c78bd02d1d03c3e05fd5ea6f89bed900a93777df5028c2970100be. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/JPW562102524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c994451f90c07fdd5b246c661211ffd783958033168fed56d7eb5a6af3436dd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPW561907632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61baf56445ea17056e6ff5087a19f1a393e212577c06bdcc15d43d37082f9a0. 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/JPW562102525.
Tekito Daybreak (feat. らっぷびと) - Exclusive
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4eb1ed387b1b7106e7441348cb427ed475c428e5e5a64afcf3827723dd6cbfb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPW562102533.
Make Up Your World - siqlo's "HiTECH Veats" Remix
Make Up Your World (siqlo's "HiTECH Veats" Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b034723caf5a3ef46210a6e53e627d6df38b8ce7820d9dc852f049dac90242f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCJPB2416388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c0b601aec7e6b40656064fe2966add88f51c2728bf9ff21bf47c28869f7d37. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCJPV2380867.
酔いどれマイクリレー (feat. 雨天決行| 抹| らっぷびと| ｙｔｒ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4acbbd3ad2503d3f6b401c5567b120ea49b27f3e587cc0556d474a770501cb2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPW562103224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af14807fc6e883cb18ff7f578a04f70841cdc5cdbbb0d8f0f2638481fc7dc12. 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/JPW561805036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9741d98505d4708c2d0ecee0ff8589b853de66b11ed64dc5a43ea5f5a14214. 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/JPW561802280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2c8a49ca2ed78a049aa58a3bf8adb07bdf9df1cf986a62069acc48a623bf64. 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/JPW561802214.
チルノのパーフェクトさんすう教室 (feat. 抹, ｙｔｒ, らっぷびと) - TOS Remix
みんなのパーフェクトチルパ天国
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380ccf4a706edb995f422afbec4f7d5730f12628e6e3f07fef926a86148bba87. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPI961900240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c8339559dea3f089f47f02743c8cc42633522c1ea6b82483808b80f85640bf. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPW561907633.
How Typical !! (feat. ｙｔｒ, らっぷびと, Romonosov?, 抹)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5993660f05993fbab617ef16d4024fa5e05c38085854120c5283f9f68fe5b36. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/JPW562102526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04af6773cdf53b52857757f1fb70076b47c764e1839d953bfe84a05ed8332113. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPW562102537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca12fd16c8216d940abf709797ef86a8c3c0e0829f14d02c16a4ee8a7423013e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCJPB2407327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd922c89d6ff9084360281bdab7368f25647cc0670477ac3345e89a23dab86c89. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPW561802275.