Pith Number

pith:WZIE4FIY

pith:2012:WZIE4FIY7Z6D6L3W32RX5F5K3S

not attested not anchored not stored refs pending

Investigating Keyphrase Indexing with Text Denoising

Robert E. Mercer, Rushdi Shams

arxiv:1204.2231 v1 · 2012-04-10 · cs.DL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WZIE4FIY7Z6D6L3W32RX5F5K3S}

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	2026-05-18T03:58:12.974958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6504e1518fe7c3f2f76dea37e97aadc800c14f61a80229d05f9f4d88178012c

Aliases

arxiv: 1204.2231 · arxiv_version: 1204.2231v1 · doi: 10.48550/arxiv.1204.2231 · pith_short_12: WZIE4FIY7Z6D · pith_short_16: WZIE4FIY7Z6D6L3W · pith_short_8: WZIE4FIY

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/WZIE4FIY7Z6D6L3W32RX5F5K3S \
  | 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: b6504e1518fe7c3f2f76dea37e97aadc800c14f61a80229d05f9f4d88178012c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "918e99e59bcc6f3406a55f3cbd2a972055792d8d81cb8a9525fe3186fdfc4ed5",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2012-04-10T17:57:42Z",
    "title_canon_sha256": "c96b5b902cd46f885bd68877721573ab6cbec3e88a2852dd3b07cd6f7ce7c5f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2231",
    "kind": "arxiv",
    "version": 1
  }
}