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 0xae8ea3bf1e36db86a95683ebb913aaffef59f1d85aa0c496596bb63d1df49a41. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed8ffede-9e8e-475d-934f-b287d8afd562.json and https://artists.proofprofile.net/proofs/artist/ed8ffede-9e8e-475d-934f-b287d8afd562.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 0xe8b9c1871b7e73c559215f2dc0b72e4f31a4a7c62ba637b7d61d7b47e551c9d8. 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/GBKPL1830348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725681f7b2a5640d69e84e95ea214cfffc3c35f4e0dcc3fd7481019b938284a9. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:54:18Z), 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/NLZ8C2300644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725681f7b2a5640d69e84e95ea214cfffc3c35f4e0dcc3fd7481019b938284a9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLZ8C2300644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37efa0b2c5b9ebb458a8a1c6fa496b070dc53f9d0e899e943bcbb729e8de8c09. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLZ8C2300693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9704e34189882f934ef3fc62f86af5eadbbc1b66484da2cbfd708161469a07. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:21:27Z), 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/CBAUX2422301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e96f98363cc785207815b85133cdb5a32cc5ff31f6101561d63366f2a01fb88. 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/CBAUX2422302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72be3738a40932c8cee12ba70692d9d966f1b87722ff27df1cb96ff863cc226. 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/CBAUX2422303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7caca937aa0059b1cea045c3be4c810922a988811301d5b17bbfc56091899034. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CBAUX2422304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f8ec5c416b88d85d31197db88745e0b70de86d38d1bd086632a7a415e9d56d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CBAUX2422305.
Vokal Fry (Ciel's Heavenly Groove) [Remix]
Vokal Fry (Ciel's Heavenly Groove) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9e9eee7dc3de90beaf2a1d06130ae31e5127e83663c5996ff42ba3196e3990. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/DEG932405697.
All Night Long - Ciel's Daylight Saving Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ac477cc4863729975cfe07b5cd6849c9899394a1c95280139f08e45f7b0853. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM8QH1800720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae93bc23e158e755b406f401aeead2c66c5bddde74445b3fec7176831747b263. 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/QMFMF2005117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a54ae7d92a2eaead1d23331071e7bb913024448aeb6565b7bd71da6c1643fc6. 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/AU2ZC2100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea71861a446b9f50fffd856db536e0b5719f00bfc8997b12aaa3fe24e4a0aea. 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/USLZJ2076130.
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 0xee808aee3fa51c481ed879e78be2f7684d77da57af99f278abe6567ee088e2e9. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/UKS9D1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e752fc4ed17813e7220b2be9b456022116f1da407e51c11a4dbd533d848f4d. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USLZJ1825119.