Pith Number

pith:C4ALUPH7

pith:2020:C4ALUPH7F2XHWQE2FJA76YYLB5

not attested not anchored not stored refs pending

Change Rate Estimation and Optimal Freshness in Web Page Crawling

Gugan Thoppe, Kishor Patil, Konstantin Avrachenkov

arxiv:2004.02167 v1 · 2020-04-05 · cs.IR · cs.LG · cs.SI · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4ALUPH7F2XHWQE2FJA76YYLB5}

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	2026-07-05T00:52:56.528889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1700ba3cff2eae7b409a2a41ff630b0f7c395f16e9c1ea0694edce721b0196b2

Aliases

arxiv: 2004.02167 · arxiv_version: 2004.02167v1 · doi: 10.48550/arxiv.2004.02167 · pith_short_12: C4ALUPH7F2XH · pith_short_16: C4ALUPH7F2XHWQE2 · pith_short_8: C4ALUPH7

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/C4ALUPH7F2XHWQE2FJA76YYLB5 \
  | 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: 1700ba3cff2eae7b409a2a41ff630b0f7c395f16e9c1ea0694edce721b0196b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bc28bd13ec76753d4372357b215b0dbfc3a5985133ab7236b624bacec6d03cf",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SI",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2020-04-05T11:48:38Z",
    "title_canon_sha256": "8de7c1ede95c71a078f48cb09e1324a4ef6596b1d968137f4ca48126281c603d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.02167",
    "kind": "arxiv",
    "version": 1
  }
}