Tova is a given name, nickname and a surname. The name Tova has multiple origins. Deriving from Old Norse, it is thought to be a hypocoristic form of the name Þórfríðr.Teresa Norman, "Tova." A World o
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 0x53c40631ba9968476fd04583b3ae7c7385b63295e77c23017ec9281917c41174. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69c5af95-4b11-4009-864e-112a87439619.json and https://artists.proofprofile.net/proofs/artist/69c5af95-4b11-4009-864e-112a87439619.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 0x1096bd0c11ed29ce4fb36ea5890862834c75152d6938c950cd28af1d0194d738. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T16:00:41Z), 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/QZMER2353669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe522d704c791783fef300c2e6e101a9558de7d6e080246b8d4c8442beaf28740. 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/QZFYY2429073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccec751f7b099f4456d54a1c53b878ff5430ee7181cef8e3294eb5ecae7f93e. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZDA82403537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb84b45de424003ba8cc10da5a2378f029eaa8773d6b5196993e46c605db1804. 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/QZDA82403538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af05eb34baf09262e8a4a2437964f9f391e51d8f20a9468b699c3f571bd15b6. 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/QZDA82403539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe522d704c791783fef300c2e6e101a9558de7d6e080246b8d4c8442beaf28740. 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/QZFYY2429073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd459b091dcb78848550a449b1c4b344fc69f9b99719070862f5dc983dfe5c638. 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/QZDA82403540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38e1e0a1ba715239d8d443ae613a99d259bbc55d7292e501908b9929d90511f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:33:00Z), 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/QZZ8A2533298.