Pith Number

pith:J6QUVL2J

pith:2003:J6QUVL2JY3JOYP3LGBRI7NNTAA

not attested not anchored not stored refs pending

D-branes, B fields, and Ext groups

A. Caldararu, E. Sharpe, S. Katz

arxiv:hep-th/0302099 v4 · 2003-02-13 · hep-th · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J6QUVL2JY3JOYP3LGBRI7NNTAA}

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	2026-05-18T01:03:31.491007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fa14aaf49c6d2ec3f6b30628fb5b3002aa91396a5b9ec5fad893bc010c33109

Aliases

arxiv: hep-th/0302099 · arxiv_version: hep-th/0302099v4 · doi: 10.48550/arxiv.hep-th/0302099 · pith_short_12: J6QUVL2JY3JO · pith_short_16: J6QUVL2JY3JOYP3L · pith_short_8: J6QUVL2J

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/J6QUVL2JY3JOYP3LGBRI7NNTAA \
  | 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: 4fa14aaf49c6d2ec3f6b30628fb5b3002aa91396a5b9ec5fad893bc010c33109

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6edae57cb9ed89723b4d3bcc54414e7706854fe981f817f73030a9e2bf64eb1",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2003-02-13T16:13:02Z",
    "title_canon_sha256": "84890b7ec2b3f5142d0907c8f92301e50fe573dd208e3089d57768a3a4d2e213"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0302099",
    "kind": "arxiv",
    "version": 4
  }
}