1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x2a17d52f38eaff1ffd5328bd2d7a2579af30da9bb656e780ac5d5fa3549e8bd1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3be21bab-7424-4e46-a7e7-855960a937e2.json and https://artists.proofprofile.net/proofs/artist/3be21bab-7424-4e46-a7e7-855960a937e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TV Animation ”Summer Time Rendering” 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 → block OTSBitcoinBlock must exist at that height 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 0x06036e9f32ae34c7c52414e31ecbd56aa4702b01ebb1a9518c82c0c77a97e3d1. 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/JPK632203101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2203edb3733d02092ecb7a539eb3db81d3c442682a3bd931446686b6739d25a3. 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/JPK632203131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970038cedfe8f097fe275285cd88372786fce9ddaeec81b5f77ecad69f0af0db. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPK632203102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738de767a418c752de93659044bc773b1b644c06a5015dc88b366240e71d552f. 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/JPK632203103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb55f7cc9656f08b9c26099d7ffdd8d03d2f2a3d27d9ea270994f62212719cc5. 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/JPK632203134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67ad002e154893b07fe8bda6e180e62cd23da838350e364baa72bd983a32b31. 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/JPK632203106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796022d7103a52d5e8f66cff2435d71129b365c86577bc32c0d3967a2822e25a. 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/JPK632203108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f8a7ef1fbe502e6b05667ee8e51caa2960fab77b7da7390410052afb6a6699. 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/JPK632203138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e72c509991299ee807478a053cc6417e485000cfb2d49bf7507496ca30a314. 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/JPK632203109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ff918da7d097ad1af04adead174183dcc0b612422b1a599e6fe2025bdc2e9f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPK632203140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8db2164a7487db0125225def3f4989bc732be0a7b98da562a624c01df07611. 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/JPK632203111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9d847a996c766bd8c8187671055e36511b43503828ecb398118223c66eb23. 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/JPK632203141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3a234847cfac036a89a7a949039a7889584024ca2164b49583745f3743d850. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPK632203112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebf9d0df7aa3bfa682036e5e190c588f22ed11d348d695909a46737c6987577. 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/JPK632203143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddc1a4d8c1958f18e93a57841406ddeaf1a4089b8c62ba9a1f4ff67b05c1dbf. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/JPK632203144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9551c04f45df0fd872ceafb917d744bb46736954c28d41a1c6dff9eb1d2e225. 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/JPK632203116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4e621c1fef9709c883e59f7917f03ab9b4c825cac980cb34d46aca9330a9ce. 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/JPK632203147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7230c0c62e584bf854c82451ddb4f7f1651a78347c739fc1c7c49e07ea707b58. 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/JPK632203118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6cdc57b4b4eec9e236af664bf592d690759ba927b541a012460b28fbb4f4a1. 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/JPK632203119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98340ade9fc0334c91621fbbe487b29750a9d95cf33285afbdafca179b301fe7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPK632203122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb179cae6828227d5179c0054f10773d0d577e6c360f31a47c77560c0232281. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPK632203123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5396f74c8c139a83feea7ec6ca2f5fb90aebe8b2c8420c1e726f1f856f54fc84. 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/JPK632203124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0599e100e14a5185bb04d36c2343f3334836a860e1545442f07a7be65f29a203. 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/JPK632203125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00404b68b123c37de3f36fa1805c613b390d1f9e9bb62013498b6f061c9e3e3. 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/JPK632203128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c29f4984d674c49185e945b790319e67985ca2ad7084aac5429651744fae9b3. 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/JPK632203129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefe1ba04e9a28d5957d6913f2c3fd646559f28925a7c5771af988077e223c52. 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/JPK632203130.
"It's not about how long we live, it's how we live."
Vivy -Fluorite Eye's Song- Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0caf14a98002bc5e57707ffcbfd34a0e70627b73311dc94230b33fa273668c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPE302100715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a6f4b6876f09fa9d0df9bd800a52d313b7b7303ae33d4a11ace1a05ec8a132. 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/JPE302100718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ef3d1394b957ecf2baa655b480a3cb2d0cdbf5b600ae8be19965f1ca461377. 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/JPE302100717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5129ef64ba5bb0afec0fdda537324e44f936348383e8f15198be9225ab37bb. 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/JPE302100713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2f45a970a5c97506f5c22947c81cf8ae9003b7abbb52fa3bc082e028085e6f. 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/JPE302100736.
"Shangri-La Frontier" Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840a8f61157b806ba5b6520cca432c91c8e9d8d70e56c73b6c342466e00637ea. 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/JPT332400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f179bf3d93e4064533a5b2f4a734990a6cbcbb08a507852cd4d80fe632ce696. 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/JPE302100722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86bcddfe658fbce13c1b85fa9d9d2e9dd99379e3968416e54fb11b9fc46dead. 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/JPE302100743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06037b2dcaeb0de19927ac5200bb5da507ec85efeb29ff1087ab6d5d6c834dc4. 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/JPE302100709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf28e1e1940dd35c9792bcdd64c753054733a432167c1dd12193a51fd2645050. 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/JPT332400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429d62b292b1fcdd23edeb75a7e76b4049f9d4e70d6a66dd949c15d1ea49a3b8. 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/JPE302100712.
Fate/EXTRA Last Encore Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7c16581d2de2c9a9e4474dede0f78e9fab35dbb2dad63694174df5a939bdef. 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/JPE301800758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677f2df96ed56efd71c92353045ee8e80541ac035060c7396c5de410deb81afd. 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/JPT332400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81499c311d1d5bbba0bc66fa643a0428d201039942944dd479459156a4ca377f. 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/JPT332400061.