Pith Number

pith:Q7OJDS56

pith:2015:Q7OJDS56SWZZUD532AS4STV6SF

not attested not anchored not stored refs pending

Entropy and Graph Based Modelling of Document Coherence using Discourse Entities: An Application

Birger Larsen, Casper Petersen, Christina Lioma, Jakob Grue Simonsen

arxiv:1507.08234 v1 · 2015-07-29 · 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{Q7OJDS56SWZZUD532AS4STV6SF}

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	2026-05-18T01:01:01.297490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87dc91cbbe95b39a0fbbd025c94ebe916ef5a216bb99557cdb46fd8af70bf7e5

Aliases

arxiv: 1507.08234 · arxiv_version: 1507.08234v1 · doi: 10.48550/arxiv.1507.08234 · pith_short_12: Q7OJDS56SWZZ · pith_short_16: Q7OJDS56SWZZUD53 · pith_short_8: Q7OJDS56

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/Q7OJDS56SWZZUD532AS4STV6SF \
  | 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: 87dc91cbbe95b39a0fbbd025c94ebe916ef5a216bb99557cdb46fd8af70bf7e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "475c74c82b1fa41653ddcac8da805a00b366cf44391c182171a9fdb30852f335",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-07-29T17:40:19Z",
    "title_canon_sha256": "6954e3f32989581d60c317d207a1c461e71dc29974588cb43e702a480a7aaa7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08234",
    "kind": "arxiv",
    "version": 1
  }
}