Iseo may refer to: Acronyms International Sustainable Energy Organization (ISEO) Places Italy Iseo, Lombardy, a comune in the Province of Brescia Lake Iseo, a lake in the Provinces of Bergamo
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 0x5eb0ac64c6773090756706ed4025d6f3b4c6d0a693df729ede0ea43cbb49f358. 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/0bbfb619-aef6-450c-82ba-97301ae7052a.json and https://artists.proofprofile.net/proofs/artist/0bbfb619-aef6-450c-82ba-97301ae7052a.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 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 0xe95058f3f780a88fe62851bab573181c72b7b22a8046839affb2026a0bd61a94. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USHM81501758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac008f4a237adcd0ec549d13f91687583059294010755a191322ec644a7018c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USHM81501759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dd543f42acfdd9475e550734c1686cff0b2c5daecb9aea0ac9b6461b35babc. 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/USHM81501760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eea23f67dea248af3b5dc944478a8affce9dee3c23e90e542f9ab3526363ae9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USHM81501762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9179ea5a490f1af4495c3a18438be14dc6873d980360d795ee93c845c7c9fff. 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/USHM81501763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f63316e3746437655ad28af86e3acfe6734dcd17418f3890f081a1549bbf0b2. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ESA011513536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9fa11ecb6ca451dcbf3cabb212db2ec272a9217a06f517b8013a82af390a00. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ESA011513538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d00a7e42326d15cb313f42ca45381d8e8d1ff3fcf58016ee4354245c2e0e07. 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/ESA011513539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4545cda8ac37116109d28d2d9cba3818946745c83b0b97c5da11fb3b6856372f. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/ESA011513541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db16f435956a4d68cb1aa556795fd2a2ca36f67eb87acc3c71699a87254796a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/ESA011692125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d48f82fbf02c8c834b4f6d260bb22abd7e4029427b171671e24499f43298b34. 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/ZZOPM2112994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5017b12a907ac61e8917dfb44d5b6a52d4eda19195719a194984fb4a996a451b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ZZOPM2112995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d48f82fbf02c8c834b4f6d260bb22abd7e4029427b171671e24499f43298b34. 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/ZZOPM2112994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacfdeb3614695d4aaf6167c8659f1e7d7ee31eef183c67d17e627e46e870028. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ZZOPM2112996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c79271d06c6a0757f76f95311693837f225eae953189de1a3398896548de97. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ZZOPM2112997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f75c8d325bb5027254b4f6b674e5490b155e2327ea385db900511f57cbba4e. 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/ES5591800288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc92372a6d63974b4261dddce006728fb04c0272f858aafb8b0e493d8c99bac7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ES5591800291.