Pith Number

pith:VREALHTF

pith:1999:VREALHTFYY4C6UEEMDNPTNABYI

not attested not anchored not stored refs pending

Superstring Perturbation Theory and Ramond-Ramond Backgrounds

David Berenstein, Robert G. Leigh

arxiv:hep-th/9904104 v2 · 1999-04-14 · 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{VREALHTFYY4C6UEEMDNPTNABYI}

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	2026-05-18T01:08:00.104383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac48059e65c6382f508460daf9b401c2345c78a30770629b6608b9324f6cea49

Aliases

arxiv: hep-th/9904104 · arxiv_version: hep-th/9904104v2 · doi: 10.48550/arxiv.hep-th/9904104 · pith_short_12: VREALHTFYY4C · pith_short_16: VREALHTFYY4C6UEE · pith_short_8: VREALHTF

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/VREALHTFYY4C6UEEMDNPTNABYI \
  | 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: ac48059e65c6382f508460daf9b401c2345c78a30770629b6608b9324f6cea49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cc44e6a570d886025f375011b6f4d474a986e26a8599abf980e82b625ed4335",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-04-14T23:14:16Z",
    "title_canon_sha256": "07e4bc00dad1c2fe041806fb80e5c9c7595927c0fa845ab101b8e49568e8cff5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9904104",
    "kind": "arxiv",
    "version": 2
  }
}