Pith Number

pith:FTFWOBI6

pith:2012:FTFWOBI6FIPKUPOASABNROVCIO

not attested not anchored not stored refs pending

Optimal Threshold Control by the Robots of Web Search Engines with Obsolescence of Documents

Alexander Dudin, Konstantin Avrachenkov (INRIA Sophia Antipolis), Olga Semenova, Philippe Nain (INRIA Sophia Antipolis), Valentina Klimenok

arxiv:1201.4150 v1 · 2012-01-19 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FTFWOBI6FIPKUPOASABNROVCIO}

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	2026-05-18T04:04:15.801897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ccb67051e2a1eaa3dc09002d8baa24395c19eaeff639b8b5a2a402777b1fdf7

Aliases

arxiv: 1201.4150 · arxiv_version: 1201.4150v1 · doi: 10.48550/arxiv.1201.4150 · pith_short_12: FTFWOBI6FIPK · pith_short_16: FTFWOBI6FIPKUPOA · pith_short_8: FTFWOBI6

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/FTFWOBI6FIPKUPOASABNROVCIO \
  | 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: 2ccb67051e2a1eaa3dc09002d8baa24395c19eaeff639b8b5a2a402777b1fdf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c5b3f5e31311d0c2e62f5dbcd6786435687e80a76df96b480cff0b5ac826a05",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2012-01-19T19:19:30Z",
    "title_canon_sha256": "8eb5aced33a0b1cc5a1f753ec1e000564e9995b6948a8f1c2af4561f8e3325ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4150",
    "kind": "arxiv",
    "version": 1
  }
}