Pith Number

pith:IWOPGYFC

pith:2002:IWOPGYFCRZ3USTGJHWLXECFK6T

not attested not anchored not stored refs pending

Exact Solutions of Berkovits' String Field Theory

Alexander D. Popov, Olaf Lechtenfeld, Sebastian Uhlmann

arxiv:hep-th/0204155 v2 · 2002-04-18 · 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{IWOPGYFCRZ3USTGJHWLXECFK6T}

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	2026-05-18T01:05:59.599361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

459cf360a28e77494cc93d977208aaf4fdc41ce9a37989566a17756c4c98082c

Aliases

arxiv: hep-th/0204155 · arxiv_version: hep-th/0204155v2 · doi: 10.48550/arxiv.hep-th/0204155 · pith_short_12: IWOPGYFCRZ3U · pith_short_16: IWOPGYFCRZ3USTGJ · pith_short_8: IWOPGYFC

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/IWOPGYFCRZ3USTGJHWLXECFK6T \
  | 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: 459cf360a28e77494cc93d977208aaf4fdc41ce9a37989566a17756c4c98082c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ce6bec0ee747d3c4ba8410a25d236d305851e3ca23ed16a3b8a72d49b58c478",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2002-04-18T17:18:33Z",
    "title_canon_sha256": "829fdcb152421fb69fec83e474fa06240ac0e4edfe5f9b73c86569daad091783"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0204155",
    "kind": "arxiv",
    "version": 2
  }
}