Pith Number

pith:Z7TFQASS

pith:1999:Z7TFQASSIIWDRYEGVUCGC5DVAR

not attested not anchored not stored refs pending

Stable non-BPS D-branes in Type I string theory

A. Lerda, L. Gallot, M. Frau, P. Strigazzi

arxiv:hep-th/9903123 v2 · 1999-03-15 · 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{Z7TFQASSIIWDRYEGVUCGC5DVAR}

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	2026-05-18T04:34:46.566523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfe6580252422c38e086ad046174750467abbc2757c11a757cc60ef25038f6e8

Aliases

arxiv: hep-th/9903123 · arxiv_version: hep-th/9903123v2 · doi: 10.48550/arxiv.hep-th/9903123 · pith_short_12: Z7TFQASSIIWD · pith_short_16: Z7TFQASSIIWDRYEG · pith_short_8: Z7TFQASS

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/Z7TFQASSIIWDRYEGVUCGC5DVAR \
  | 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: cfe6580252422c38e086ad046174750467abbc2757c11a757cc60ef25038f6e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a008a3acdd180d9b4388cdf10cbb452dd146a4440c9c2c577697cc6e5a3318aa",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-03-15T16:31:37Z",
    "title_canon_sha256": "65f7bfe61b5f4267cb52dced8dda1bcc5896f54e655cb80910a3020f9ecb8c53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9903123",
    "kind": "arxiv",
    "version": 2
  }
}