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 0x196c7cb1ed496da668c23cad4c0da848b21cd87ac1f9b4f575e37c7aa3a6172b. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e2955ee-71c6-42ce-986a-a0a63dfe7514.json and https://artists.proofprofile.net/proofs/artist/4e2955ee-71c6-42ce-986a-a0a63dfe7514.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Arcanum Vol. 1 - An Arcane Dirge Compilation
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 0x83c8717a290f864591aece5b7bfecb32bb1f883bf55bcbb07c7cd331adfdaf4c. 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/DEBL60926083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43eaf9a2f8ddfd6dc995330e587640d82ea9a06f3dbc163b2792cda3b6b7cea7. 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/DEKV21801185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4953f60f16b40eb96de4231a61843cbf616fa6a5307e0eae57e1bc9d2ca704a9. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/CAAD20610881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18998c2a5d814f2d08d88b622c9f4e7b0f3cba9ecfe925b258f0b85637539a84. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZHNA2423589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d291282b7a15a830a552ed18b426dd7ada4e57a2575806ecb05ba313105868. 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/QZHNA2423590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dbca2df56b351452ebf37458db634d56a52970dc14b64d11112abef9fd094e. 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/QZHNA2423591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9640d353e04b761eb0108e03f6ccf804cd823514727acd3f7b70a42f3e3c0515. 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/QZHNA2423592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b80eaa13e0a4009f6a54b907fc527f606c5c056e77e77c6cf8d116831ee0b2. 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/QZES72045079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfba5029680475c8db1e4186c79d1e92f7dd1c01d5ef6b941ea36829ac590206. 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/USI4R1219919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce05a56262f7f3baa71ede518530cf0ab54f901ab4a08807c89cf097346d1feb. 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/USI4R1219921.