Pith Number

pith:NWC4QPTV

pith:1998:NWC4QPTVML5B7Z5ZP4AMFM4LXC

not attested not anchored not stored refs pending

Instantons from Low Energy String Actions

Anupam Mazumdar, E. J. Copeland, P. M. Saffin

arxiv:hep-th/9805032 v2 · 1998-05-06 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NWC4QPTVML5B7Z5ZP4AMFM4LXC}

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	2026-07-04T16:09:47.244566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d85c83e7562fa1fe7b97f00c2b38bb89b4db1a94c23286ae395dba20ef9b16d

Aliases

arxiv: hep-th/9805032 · arxiv_version: hep-th/9805032v2 · doi: 10.48550/arxiv.hep-th/9805032 · pith_short_12: NWC4QPTVML5B · pith_short_16: NWC4QPTVML5B7Z5Z · pith_short_8: NWC4QPTV

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/NWC4QPTVML5B7Z5ZP4AMFM4LXC \
  | 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: 6d85c83e7562fa1fe7b97f00c2b38bb89b4db1a94c23286ae395dba20ef9b16d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3062b5b0561628053656cc43407ac646d5089bce0a6c71eab02e46146429285",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1998-05-06T16:07:44Z",
    "title_canon_sha256": "f87c59159ab21859c4c4147c64d8ad0037f07b9f0549ee50481d820a59e720de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9805032",
    "kind": "arxiv",
    "version": 2
  }
}