Pith Number

pith:FJE6OI2I

pith:2014:FJE6OI2ILQCLD22ISCKATKI6D2

not attested not anchored not stored refs pending

A $35 Firewall for the Developing World

Zubair Nabi

arxiv:1405.2517 v1 · 2014-05-11 · cs.CY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FJE6OI2ILQCLD22ISCKATKI6D2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:52:05.372119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a49e723485c04b1eb48909409a91e1e84b4a389852311740d8adc141fe136b0

Aliases

arxiv: 1405.2517 · arxiv_version: 1405.2517v1 · doi: 10.48550/arxiv.1405.2517 · pith_short_12: FJE6OI2ILQCL · pith_short_16: FJE6OI2ILQCLD22I · pith_short_8: FJE6OI2I

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FJE6OI2ILQCLD22ISCKATKI6D2 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2a49e723485c04b1eb48909409a91e1e84b4a389852311740d8adc141fe136b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "304ee502370e4ec836f187f7cdbbb2fb35dd9c6f79e2f5dfa16fb2f09a15e1d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2014-05-11T10:38:06Z",
    "title_canon_sha256": "dd2a79e138c8f7b5becde35dcb3aadac374f4f8b89e543252b30d2757f90096d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2517",
    "kind": "arxiv",
    "version": 1
  }
}