ETN DataProof — Web3

What it does

ETN DataProof records any file or data on the blockchain — without uploading your file anywhere. Only the SHA-256 fingerprint is stored on-chain. Immutable. Verifiable. Forever. 🔐 Single file or text certification 📦 Batch certification via Merkle Tree 🦊 MetaMask users: open inside MetaMask browser → wallet connects automatically ⚡ No crypto? Use Server mode — free Perfect for: → AI data provenance → EU AI Act compliance → Copyright protection Fee: less than $0.0001

• BT
  btproof - trusted timestamping on the Bitcoin blockchain2013 · btproof.com · ▲75

  Find information, resources and relevant links for btproof.com. This domain may be for sale.

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  Bitproof2015 · ▲113

  True certification in the bitcoin blockchain

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  Blocknify2018 · ▲71

  Sign sensitive documents without sacrificing your privacy.

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  Proof.ink2019 · proof.ink · ▲100

  Proven immutable data stored on the Steem blockchain

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  FactomAuthorize2018 · ▲69

  Protect your work on the blockchain

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  SBIX CertifyDec 2025 · certify.sbix.io · ▲13

  ✨ Instant legal proof-of-existence for any document.

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  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 18d ago · spira.ai

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  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

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  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 19d ago · tej.as

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  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 21d ago · stillwet.art

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  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

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  Beam.win▲377

  Run AI agents on one Mac and use its windows on another

  AI · 4d ago · beam.win

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  Brew ▲900

  Like Claude design for email marketing

  AI · May 2026 · brew.new

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  Kilo Code for VS Code▲896

  Parallel agents, diff reviewer, and multi-model comparisons

  Dev tools · May 2026 · kilo.ai

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  StoreClaw▲806

  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

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  PollyReach▲795

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

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  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

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  Files.md – Open-source alternative to Obsidian▲730

  🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md

  Dev tools · May 2026 · github.com