Pith Number

pith:ENXQTSVN

pith:2023:ENXQTSVNOFCBCBYHCC4RWV5KJM

not attested not anchored not stored refs pending

Recovering trees from the cohomology ring of their configuration spaces

Teresa I. Hoekstra-Mendoza

arxiv:2312.16646 v1 · 2023-12-27 · math.CO · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ENXQTSVNOFCBCBYHCC4RWV5KJM}

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	2026-07-05T07:28:33.040612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

236f09caad714411070710b91b57aa4b07380ccdc1585569b8297ae763e820be

Aliases

arxiv: 2312.16646 · arxiv_version: 2312.16646v1 · doi: 10.48550/arxiv.2312.16646 · pith_short_12: ENXQTSVNOFCB · pith_short_16: ENXQTSVNOFCBCBYH · pith_short_8: ENXQTSVN

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/ENXQTSVNOFCBCBYHCC4RWV5KJM \
  | 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: 236f09caad714411070710b91b57aa4b07380ccdc1585569b8297ae763e820be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7d210e89c216cc4a3bfc7d533658f31379d4678a9007150a55f653e34902d0a",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2023-12-27T17:23:18Z",
    "title_canon_sha256": "726165e3aec5c4dbdc551efa1642aaf524cb2c42c86388f6f29ebf961b058f70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2312.16646",
    "kind": "arxiv",
    "version": 1
  }
}