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 0xecb8383bc3410e92ee186298e0e900d7449407b828092107c357bad79786a681. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27b58a3a-10e2-402a-b9c2-8683b3bdf510.json and https://artists.proofprofile.net/proofs/artist/27b58a3a-10e2-402a-b9c2-8683b3bdf510.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 → 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 0x045e1eb64f3c931e8984108457c2bccdac230bbd1d45cb5aca1be1f06d80a95a. 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/JP92N2331939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4e787fcad53de79524d692cfa9a132f2bc201735a26571f8323f0497314971. 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/JPB622400457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898c733a3425835ed5619d4ba574b3e2a33981d5766b941b10721b11ee856d2d. 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/JPB622400458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f13c1b98d6000304870fc5025fa358b80062e43a348b81d18b3ce9fc0bd2de0. 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/TCJPB2404986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc39736e5bbdda0c22edfad886aa3886ddeb708bb4caaffb56ea0080398c6ef. 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/JPP302400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6903b33e102feffcf2889201e3c4cc670121d2bff5a8096dc4ab67bc8a47107a. 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/JP92N2256134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e74b334065c3e2cffa1247224ad5805fb9dc99a22318e0619883484759b9e6. 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/JP92N2216085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded25ae6ede8a83f015c24cfd99c28c64931728d3a55c452c9df60d8f48e4381. 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/JPB622401035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d2141905aa2bb6b869f1b7c40fba5e5cb0c1a24d532bf1817b02dfa0f4299d. 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/JPB622202520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e839b8c094e9e1805ef841cacb7d641d0385872f0fee44e52b28b540118202. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPB622400344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cc3843154db94946efd9380438532f82ca545d409b37faac0c27f23d26c136. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPB622203468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf6c23f3271ad7e2e6680b150c6dae40ca094bbaab3a545778571ccb927e906. 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/JPB622401033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32741b2272e9ee9de169153dac793b94a17fc8b794eb1e09260af7ea4b32d3a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPB622202100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97455a1a28370ea641412e5b80eb1c54f269b7da5682401cca30668fd1c9b61. 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/JPB622201662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f6d5493d21dd151b497d6c8ef64badcd528e7b024ccc1a40758ebcc52e3b1a. 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/JPU902102297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ddcda354d9f89d8ea7c42639dec619bf1eb8bc0d05928ba086f1424410601f. 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/JPU902101886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2173b2e21a47da8a02e8a5363671c15984f3ea68f7ffc931d7c69dab98160e8. 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/JPU902102298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107beae3ddb425b7ad6e4fee2b401a18d906733cba86892b92c4577ad333793b. 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/JPU902102299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9175ecbf9b3533378e831e4eb26fcc2882c62fb51b24f3b099b0c9773b8d63f. 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/JPU902102301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9b40313326718ba048da6e81760eb4b4e5235dcca563682c8e660ef2cf0340. 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/JPU902102302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff8136fdeaf5844d665b21983ae8d5b48a17e7b1e0a50b576365cb89f234c1e. 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/JPU902102303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9639ae9e62814279e0c825c697c536889e308fcff4955dd676b402d73da5224. 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/JPU902102304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098bbb5c4e3d8f26e334c71d5caed10da78f7c11da55ea91865fd1c701841088. 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/JPU902102305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c263644a74a2eebe135fed75cd03091bb81e2c6342e83355340902a67a4af1. 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/JPP302400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cc3843154db94946efd9380438532f82ca545d409b37faac0c27f23d26c136. 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/JPB622203468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bd6dc0a9648ad0770063b3f50108e1cb50e9e79a338c6942250121db7fac71. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPQ702300792.
T.O.G.E.~Theme of TOGETOGE (feat. MPC GIRL USAGI)
Ultimate Chill Music Vol.2.5 - Tranquillo (feat. MPC GIRL USAGI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f27877a38fea858140fc4cb394b1b18872706ad41cad2ebb1ec85cdad69d36c. 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/JP92S2510244.