Helen Ward may refer to: Helen Ward (footballer) (born 1986), Welsh footballer Helen Ward (scientist), British professor of public health Helen Ward (singer) (1913–1998), American jazz singer
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 0x060b2130e500fb5b968491955d1e832b5069f2d1f7cea8e315888adb27517ce4. 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/2110cdfe-1e95-4184-b9f1-b4c3a6913d0c.json and https://artists.proofprofile.net/proofs/artist/2110cdfe-1e95-4184-b9f1-b4c3a6913d0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nostalgic Memories-The Very Best Of Helen Ward-Vol. 130
Top 40 Classics - The Very Best of Helen Ward
Ward's Whisper: Iconic Jazz Vocals by Helen Ward
Essential Classics, Vol. 1084: Helen Ward
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 0x1e185c1868520a8bd82b926ffdcb467dd39ae187591a59b6f086f84caf72c0f9. 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/USCA29501359.
All That Jazz, Vol. 22: “From Jazz to Swing” – Benny Goodman, Vol. 1 (2014 Digital Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855843cb20a23f6ad56ab69009c0e0c0bbf1a8df3c1657030affabb251069035. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEL111401908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5be2ec7e59390621af56d6bb3b9b4b719875006aab47365d7a0ea74119a7cac. 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/DEL111401915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb102356d781d15aff5c8142d76700514b950d91be7f8f684077de79683550c1. 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/DEL111401920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44fbdd784e7e905eec8f7688b041e49c8e3d9b6d116c5034a8a9679e2fbe9ac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBB10300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e392927682e33c5eb84d86a81691f4efa19123269eeda0e00611dc1b6661b6e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBB19101524.
It's Been So Long (From "The Great Ziegfield") - Remastered 2001
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35c5ad35c8c34848adbef367fc1d14026c030acc0e4adcf9b767aaa7257afcb. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/USBB10101114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a21f29835afbd7d6d6988d0fa17b45d3444fb811e896c75b08ab0ccc210efef. 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/USBB19101516.
These Foolish Things Remind Me of You - 1991 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052aa90c6199ac5caba3e0832cce5f315486d4c52343282740a2a96e9447f7ff. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USBB19101523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9539abf0bd69332ece2924b6ce4c130db144e0ff0197c3cf9e38fe808afbe64c. 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/USBB19101517.
It's Been So Long (From "The Great Ziegfeld") - 1991 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50eefeae5cea8b162d9c8dca82bad26aaf9e214e0c7fb50ec5a7659b12eb5da. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USBB19900421.
You're Giving Me a Song and a Dance - 1991 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e22cc703119979a685a1f2b0c418e89ac637e23edebcda7054e5644cb203782. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USBC19901805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef3baed9b385acaf788302d03e35e40fcaddaf5414a7a0393e232ce5f7434f6. 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/USBB19900262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8213891fc28baeeb5c4fb5a277af2f372c31cfb6db8cb0d2eac66f1b5a4525. 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/USBB15601017.