Pith Number

pith:SFEN43OU

pith:2013:SFEN43OUA3CPA3EAM4XHXBWYEJ

not attested not anchored not stored refs pending

E-learning Services for Rural Communities

Sabit Rahim, Shariq Hussain, Zhaoshun Wang

arxiv:1308.4820 v2 · 2013-08-22 · 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{SFEN43OUA3CPA3EAM4XHXBWYEJ}

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	2026-05-18T03:14:29.119206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9148de6dd406c4f06c80672e7b86d82247a800255a68db886a6d305cc8aa7528

Aliases

arxiv: 1308.4820 · arxiv_version: 1308.4820v2 · doi: 10.48550/arxiv.1308.4820 · pith_short_12: SFEN43OUA3CP · pith_short_16: SFEN43OUA3CPA3EA · pith_short_8: SFEN43OU

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/SFEN43OUA3CPA3EAM4XHXBWYEJ \
  | 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: 9148de6dd406c4f06c80672e7b86d82247a800255a68db886a6d305cc8aa7528

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1929a90933814ca56ea26d6d6c7b1b35e106e2e35a2e3dccf6b7e227cc36e017",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2013-08-22T10:57:55Z",
    "title_canon_sha256": "d6a0decd11c556a81a65ae973ff3e64bc405ce5070baccaca8cf2b3fa0c234e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4820",
    "kind": "arxiv",
    "version": 2
  }
}