Pith Number

pith:IUXGB6AH

pith:2015:IUXGB6AHHJDJFMI27NPBSH5YCD

not attested not anchored not stored refs pending

Interactive MCQs as a tool for Knowledge Acquisition

Kisor Ray, Saumen Sarkar

arxiv:1503.04937 v1 · 2015-03-17 · 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{IUXGB6AHHJDJFMI27NPBSH5YCD}

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	2026-05-18T02:22:21.062208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

452e60f8073a4692b11afb5e191fb810d8befcd491b3fd289a9b91003a91f6c0

Aliases

arxiv: 1503.04937 · arxiv_version: 1503.04937v1 · doi: 10.48550/arxiv.1503.04937 · pith_short_12: IUXGB6AHHJDJ · pith_short_16: IUXGB6AHHJDJFMI2 · pith_short_8: IUXGB6AH

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/IUXGB6AHHJDJFMI27NPBSH5YCD \
  | 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: 452e60f8073a4692b11afb5e191fb810d8befcd491b3fd289a9b91003a91f6c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74765f86c49425d1fa72e68472d35121645b8a5b894328fd702b87230d93f2d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2015-03-17T07:00:11Z",
    "title_canon_sha256": "32ece7d62fb77533aeff3479ab459fd77b509a4550cf83e49bf37d06595f6232"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04937",
    "kind": "arxiv",
    "version": 1
  }
}