Pith Number

pith:O5QJR4X2

pith:2012:O5QJR4X2SJMHKWMVFILIC7VTG5

not attested not anchored not stored refs pending

Improving Retrieval Results with discipline-specific Query Expansion

Philipp Mayr, Philipp Schaer, Thomas L\"uke

arxiv:1206.2126 v1 · 2012-06-11 · cs.IR · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O5QJR4X2SJMHKWMVFILIC7VTG5}

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	2026-05-18T03:06:03.672029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

776098f2fa92587559952a16817eb3375fc21e4c76672528ecf1062bec600e56

Aliases

arxiv: 1206.2126 · arxiv_version: 1206.2126v1 · doi: 10.48550/arxiv.1206.2126 · pith_short_12: O5QJR4X2SJMH · pith_short_16: O5QJR4X2SJMHKWMV · pith_short_8: O5QJR4X2

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/O5QJR4X2SJMHKWMVFILIC7VTG5 \
  | 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: 776098f2fa92587559952a16817eb3375fc21e4c76672528ecf1062bec600e56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e460ea42517a82a37fed60409864df824c21f3782bf24d0847e27dd672bc4aa2",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-06-11T08:32:41Z",
    "title_canon_sha256": "91934f4ffc987308202480e2d28f00441556c65e6b448c442d771681948599e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.2126",
    "kind": "arxiv",
    "version": 1
  }
}