Pith Number

pith:LSCF7WEB

pith:2009:LSCF7WEBBLPXC4IA72SEVXGA4Q

not attested not anchored not stored refs pending

Non-geometric backgrounds, doubled geometry and generalised T-duality

C. M. Hull, R. A. Reid-Edwards

arxiv:0902.4032 v1 · 2009-02-23 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LSCF7WEBBLPXC4IA72SEVXGA4Q}

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	2026-05-18T02:14:46.153862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c845fd8810adf717100fea44adcc0e413fa7ce4609efa92214cf9a120532fa0

Aliases

arxiv: 0902.4032 · arxiv_version: 0902.4032v1 · doi: 10.48550/arxiv.0902.4032 · pith_short_12: LSCF7WEBBLPX · pith_short_16: LSCF7WEBBLPXC4IA · pith_short_8: LSCF7WEB

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/LSCF7WEBBLPXC4IA72SEVXGA4Q \
  | 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: 5c845fd8810adf717100fea44adcc0e413fa7ce4609efa92214cf9a120532fa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e897b076281abff32c3303f36e59415c0315b939fe0ed3dd302803ea3294b8ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-02-23T22:32:48Z",
    "title_canon_sha256": "be097ddafb2f5cc4147489af27833849c21aafd13120dfafe99a40887cc1afd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4032",
    "kind": "arxiv",
    "version": 1
  }
}