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 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 0x32ad5b0fc1fe90ec9a7ccaad7afc561f8a429cd230d2ed9b1ce462d67f8db15f. 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/9768ca6b-31fc-47e9-a051-1b13cf4df595.json and https://artists.proofprofile.net/proofs/artist/9768ca6b-31fc-47e9-a051-1b13cf4df595.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eerily Howling Winds- the Antediluvian Tapes
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 0x73554f35607d369334f6b892989d1aab52565cf3ee1622d4fac9f8fff00c5a89. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/USMBR0603371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68af6d0b2a7116c51705f7dd75e9baa5a9cbe18364923b279cdccbd834f22fe5. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USMBR0603372.
The Cainian Chronicle Part III & IV: Disciplines Of Caine/Zillah And The Crone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1550278652e6135c6dcb515def6883133a424c3fbac5d935cd707cf0ddd68ec. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USMBR0603374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edfe45de1b8f82e5539c4e5944472f85302e85e767fa8ecd596ef2cd6159d08. 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/USMBR0603375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea33e020a7c1d327069b1140c8c0d5412a75119f2adf87d37d2c8a97c4e04a2. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USMBR0603377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b93a4487ea952100affee87f10dab085956406856fce7edaed4c27a204c736a. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USMBR0603378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeeb39135a9f927eb9663b9512eb91b5ab87836a675230a1cfda3797fbf2ee57. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USMBR0603380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae37d958b9e5d4b04b7b65c5eaa89a72b3dd097369dd9d6383eb4d492c03e0d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USMBR0502059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f31657206c4989e4a02209ddf119e5514d2d81d356615eb3575b334064ee56. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USMBR0502060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea84b4056467120fb4d60d403456c2e529fbe2576f2b1f5a125362e5c2645487. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/USMBR0502061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f0188335df14c23e2b607200d2fe0b1153b145a40865cfefe284617e9f1985. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USMBR0502065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cc2c7cbb4e813a28fb607aafb333e87696a95e2f9972d2a74859cbd4e25060. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USMBR0502068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f2b934c52b3e17c32a0460d9f559c2d21b956440f315922a403de463767d95. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/USMBR0502097.
Eerily Howling Winds (The Antediluvian Tapes)
☆2nd SHOW TIME 2☆ アンシエント&team柊/「スタミュ」ミュージカルソングシリーズ
我ら､綾薙学園華桜会～アンシエントVer.～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041167fcd593e3da813b6974966981069c09057c90e7f2b6e5b13ca2fe804d02. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/JPPI01553163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bf523df6ec6135d6a06f7ae3a6ddeb348bc972a6979d0f468afa0434b057d0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEZ901800476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf495e2861e9f406a7b5d58c60767cfb5275d678eab446d9d6ac814d379198533. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/DEZ901800478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3eb6b6c7851596b4c32db85c7faa3d54aa2a1d3057c30a4b07b7ec8aeab254. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T07:27:32Z), 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/DEZ901800479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59faa8e0e1ed52d2a260c78b1550a260af4ae66a612ef7955684008eb102e45a. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/DEZ901800480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe477c105061b7afab1fa5740b869435d65e33ec5e974d49177c16e5aaece964. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEZ901800481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5249ded0ab91413fa08784ecdcf1a669f1c5d5ab18f5835f19f445fd12989ded. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEZ901800483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8168e3d8d64a74de46128cfd7e8d8307bb09cda5f25fb41ef8bcbed844dcf7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEZ901800484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200a405f02a187f04b59da0f5082d48b07587b1f6f42f7d1d903003955b78c81. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/NLRD51952857.