Ilse Weber (11 January 1903 – 6 October 1944), née Herlinger, was born in Witkowitz near Mährisch-Ostrau. A Jewish poet, she wrote in German, most notably songs and theater pieces for Jewish children.
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 0x921c156d4f1809af0b737788e4ea21d02881bc1653ae1bfdcac49ee50a76130d. 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/e947ad0a-d066-4ae2-b7d5-7fadaa6ccc2e.json and https://artists.proofprofile.net/proofs/artist/e947ad0a-d066-4ae2-b7d5-7fadaa6ccc2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wiegala (Arr. for Violin and String Quintet by Esther Abrami)
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 0x7d1e77cf317dc2d140560d63d847d7da6b643512f0cfda363f288b2f76a79263. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEE862500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abe8aff0ad5fa0f3cb8e241ce454bea82076211ba080d45e15ddbed68f3b625. 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/DEN960631901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33f1416897f22a68a68d6d8d8211f5459c228741f60f7dba1df16a9e1e64737. 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/DEN960700361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8a09ba1cdf6f2e5715b4ad5f91435bff3e35f0c52a3faaaa4223798697a081. 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/DEN960631904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6984048d6013c41e014cea1a61a77625ff5e95d529b4bb1b0ef62805a7eb84. 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/DEN960631912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e8dd3745008dab4b28ab6f2672ff883f427d1dca695bf86df54d9e500a5cf9. 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/QM6P42310642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e77cf317dc2d140560d63d847d7da6b643512f0cfda363f288b2f76a79263. 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/DEE862500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e77cf317dc2d140560d63d847d7da6b643512f0cfda363f288b2f76a79263. 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/DEE862500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e77cf317dc2d140560d63d847d7da6b643512f0cfda363f288b2f76a79263. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEE862500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e77cf317dc2d140560d63d847d7da6b643512f0cfda363f288b2f76a79263. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEE862500010.