Pith Number

pith:QAXWCKBN

pith:2008:QAXWCKBNNXXUOKS4332IPJQ4BV

not attested not anchored not stored refs pending

The cobordism class of the moduli space of polygons in $\mathbb{R}^3$

Alessia Mandini

arxiv:0802.2700 v2 · 2008-02-19 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QAXWCKBNNXXUOKS4332IPJQ4BV}

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	2026-05-18T03:16:06.836335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

802f61282d6def472a5cdef487a61c0d6101315cb36b6be06a8ad5bd7fb1bfdf

Aliases

arxiv: 0802.2700 · arxiv_version: 0802.2700v2 · doi: 10.48550/arxiv.0802.2700 · pith_short_12: QAXWCKBNNXXU · pith_short_16: QAXWCKBNNXXUOKS4 · pith_short_8: QAXWCKBN

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/QAXWCKBNNXXUOKS4332IPJQ4BV \
  | 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: 802f61282d6def472a5cdef487a61c0d6101315cb36b6be06a8ad5bd7fb1bfdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7d6fc6acb8bf51005ecb8074c7083563ffc9bc3486a0dddc890489d5cb2f266",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2008-02-19T20:02:49Z",
    "title_canon_sha256": "1a3aae8769e72e7306ad976804c6355b4ec3bfaea47be7d3cc5f08e611dc8826"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.2700",
    "kind": "arxiv",
    "version": 2
  }
}