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 0xa04e87769ac1827288b151728ce7f5ba87c0469114c58e32c0e97b145b72d941. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfcfed0b-7adf-4c36-a768-718e6c77a5a5.json and https://artists.proofprofile.net/proofs/artist/bfcfed0b-7adf-4c36-a768-718e6c77a5a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
FINAL FANTASY VII REMAKE Original Soundtrack
PRINCESS CONNECT! Re:Dive ORIGINAL SOUNDTRACK
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 0xc844e1464413c8a6acdf1992bee56c99b27b59e22ed733830ef6c8f6f3927392. 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/JPCO01905660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe278878fef94ce73e63e6ddfef5195880604ea8a2462b6d2da72156d4cb21b14. 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/JPCO01905680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c80cdad03b82534a1c41b8f184fa1cafd843f2b18f21461641e1aaa4c87eec. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPCO01905700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156461fcd8929d76bf3010b88384cb5ded63b2e9f2393dbb055d5288204dd2bd. 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/JPCO01906060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fae52dd5babf3944a2b2a2b072b7ed47ee589167d3ba4f662d8109e3c5a613. 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/JPCO01906070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99390e7163b6ed1fdc659569fb5574e26a816403b0e5507239359a544a30d073. 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/JPCO01905730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9542cd295c8ce848d3f3eaeb0e925f25d75f8fa7298e8f12ed3eb6a65fabce. 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/JPCO01905740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba3bcd2f1591d4ce3a64b740ec072ae963b8a03e49d53ba05f5220b18de1649. 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/JPCO01906090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0740bc9c2ccb6b1654f5ef53ddeb2eaf8bd609655a131bf176d7c3338a317f. 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/JPCO01905780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1840f3e7ddfcad46ec76d796abae751e21092bcbe40c55c89d589623fe91354. 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/JPCO01906130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5249ddcb0c23c3f22135996f99ddc4a86faa48747acfcfef61b0c274548bfa. 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/JPCO01905790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cd889fadf8363c4cbec78bb5e4fa3f143e34a49549645cf196172d7ff90a53. 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/JPCO01906140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1947566313fcffcad663831f80cd265b5e6321b6ce742d6da9cd291cec7e8011. 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/JPCO01906150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44a80b6a1bdedbdc83d9c5c1356c157cbe01657835114109e43200a84c925c5. 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/JPCO01906160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f909d25e355c079711d004cb38724d57f337140efc2ae07fbc3d2139b37ed81. 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/JPCO01905850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9975d0dee359f4b0b5d2e17881dfd66402ddc2a587f878b55bf4b7bccb699d. 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/JPCO01905920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9459d9edb7f869425fdcb8c6186ce027f48c530ec5b29a687151b0345aba3e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPCO01905950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970eef4b7857e8f5a1497533de0ee3efafb18a4a001e6b49589f18126d8065a8. 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/JPCO01905960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe8df2daafc3b517b3332530d00e29dc65dac72349972579c97e033143b8bc3. 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/JPCO01905970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7118c681a82b5102e2e5101b6925d9bfe28971533a569c9644f51c4753ad0b28. 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/JPCO01905980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79287c0d83823b6c29949d54eea1e7869d308f3ab17da0bfb548705d3cf23f8e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPCO01905990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf722e98d2a47b716d74d3288467296810f0009a246dafc967af93049e6c8290a. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/JPCO01905760.
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 0xd34a1a02685ffed846980941ebde9b150bad93a4164c84bd7039220a380f054b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPCO01905800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9e0e07829e3cb80f2cde7af0ed8fb9d5c59c4d8897a02a48dfc63f9400f956. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPCO01905810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300a71d6017ac30b3d5f23b0aa582b8decb9200a5595804d903bfda4e7fa5c32. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/JPCO01905930.
PRINCESS CONNECT! Re:Dive ORIGINAL SOUNDTRACK VOL.3
未解決な想い -王都の名探偵 嘆きの追跡者(ストーカー)-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6eb2b50fae0cfad25efec8d10d5f07fb49d418ebf8ab9ec3ce8e20200ac7fd. 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/JPCO02035510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a048122b09aaacccd6618d7d5c5bfe4e70f2877478f5d1ad3de4269ee9770fc. 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/JPCO02035820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29a3a533005f39e042bba50eca1d4112d04dd40b7cb0f8bdf09dad8624a111e. 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/JPCO02035640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe48b2eaa934de3ec53e83e5af8e6bfed8f769f06d5382e685d3a311eef5c7f. 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/JPCO02100230.
PRINCESS CONNECT! Re:Dive ORIGINAL SOUNDTRACK VOL.2
キンキラ☆ハピネス！ -タマキとミフユの無人島0ルピ生活
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b37be3e560f3647302a95fbdbd1ee657e695855ba59e6cd534b65b79c368a46. 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/JPCO01934270.