Pith Number

pith:QREVGZF5

pith:1993:QREVGZF567ND6JYURV5AWQZB53

not attested not anchored not stored refs pending

String-Based Methods in Perturbative Gravity

D.C. Dunbar, T. Shimada, Z. Bern

arxiv:hep-th/9307001 v1 · 1993-07-01 · hep-th · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QREVGZF567ND6JYURV5AWQZB53}

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.

Cited by

1 paper in Pith

Serendipitous Syzygies of Scattering Amplitudes

Receipt and verification

First computed	2026-05-18T04:12:02.559666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84495364bdf7da3f27148d7a0b4321eec9bbe191bb21d86ffd01ea2d442c55d8

Aliases

arxiv: hep-th/9307001 · arxiv_version: hep-th/9307001v1 · doi: 10.48550/arxiv.hep-th/9307001 · pith_short_12: QREVGZF567ND · pith_short_16: QREVGZF567ND6JYU · pith_short_8: QREVGZF5

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/QREVGZF567ND6JYURV5AWQZB53 \
  | 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: 84495364bdf7da3f27148d7a0b4321eec9bbe191bb21d86ffd01ea2d442c55d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00b061a70dd3bbf7bb0a3031fd6b6661767ba14b4c420b09a5c41530cd1ce000",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1993-07-01T06:33:38Z",
    "title_canon_sha256": "cbcec7520678a3207b632e3d96f4c304a55ac132b479bd260898862243869bf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9307001",
    "kind": "arxiv",
    "version": 1
  }
}