Pith Number

pith:26W5XO47

pith:2012:26W5XO47KHBPT3LMERGDNS2SMC

not attested not anchored not stored refs pending

An approximation algorithm for the link building problem

Anastasios Viglas, Ilia Zvedeniouk, Martin Olsen

arxiv:1204.1369 v1 · 2012-04-05 · cs.DS · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{26W5XO47KHBPT3LMERGDNS2SMC}

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	2026-05-18T02:21:16.511028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7addbbb9f51c2f9ed6c244c36cb52608cdd742a254f6f8809e761527af98e53

Aliases

arxiv: 1204.1369 · arxiv_version: 1204.1369v1 · doi: 10.48550/arxiv.1204.1369 · pith_short_12: 26W5XO47KHBP · pith_short_16: 26W5XO47KHBPT3LM · pith_short_8: 26W5XO47

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/26W5XO47KHBPT3LMERGDNS2SMC \
  | 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: d7addbbb9f51c2f9ed6c244c36cb52608cdd742a254f6f8809e761527af98e53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "251e4a5ef30a420255fde5d0cd2a1b1c06df0aa1a13fc22f4629bed10fb012c3",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-04-05T22:28:02Z",
    "title_canon_sha256": "9f94e3787b7a281fff36a2ee0dc4975ff7ea4483b5c621b6d8e923b05ec1dfd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1369",
    "kind": "arxiv",
    "version": 1
  }
}