Pith Number

pith:D2QTRCLZ

pith:2022:D2QTRCLZ75PHTRR3F7WSDNFR6V

not attested not anchored not stored refs pending

Mod $p$ homology of unordered configuration spaces of surfaces

Adela YiYu Zhang, Matthew Chen

arxiv:2208.10293 v2 · 2022-08-22 · 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{D2QTRCLZ75PHTRR3F7WSDNFR6V}

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	2026-07-05T04:56:20.169976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ea1388979ff5e79c63b2fed21b4b1f558de69697948d58dd07596d13bb792e5

Aliases

arxiv: 2208.10293 · arxiv_version: 2208.10293v2 · doi: 10.48550/arxiv.2208.10293 · pith_short_12: D2QTRCLZ75PH · pith_short_16: D2QTRCLZ75PHTRR3 · pith_short_8: D2QTRCLZ

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/D2QTRCLZ75PHTRR3F7WSDNFR6V \
  | 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: 1ea1388979ff5e79c63b2fed21b4b1f558de69697948d58dd07596d13bb792e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53324b0e24bcce0b7f9569f714526e1d1c0fbac866d36ec38c91f006d181c0aa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2022-08-22T13:21:15Z",
    "title_canon_sha256": "88ca87987e979f94faf5ecedde788914879a2b1ccfdb483448f08dd8812ba856"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.10293",
    "kind": "arxiv",
    "version": 2
  }
}