Pith Number

pith:UHN4PSV2

pith:2004:UHN4PSV2QXKITK5G4VFL76ZPK7

not attested not anchored not stored refs pending

Parity Invariance For Strings In Twistor Space

Edward Witten

arxiv:hep-th/0403199 v1 · 2004-03-22 · 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{UHN4PSV2QXKITK5G4VFL76ZPK7}

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	2026-05-18T01:38:46.319559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1dbc7caba85d489aba6e54abffb2f57f886395deb9d0bf38119b20591c0b677

Aliases

arxiv: hep-th/0403199 · arxiv_version: hep-th/0403199v1 · doi: 10.48550/arxiv.hep-th/0403199 · pith_short_12: UHN4PSV2QXKI · pith_short_16: UHN4PSV2QXKITK5G · pith_short_8: UHN4PSV2

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/UHN4PSV2QXKITK5G4VFL76ZPK7 \
  | 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: a1dbc7caba85d489aba6e54abffb2f57f886395deb9d0bf38119b20591c0b677

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db780caac7acd662475786b943f53da5662c9190b828a4de3a8038c5b8a42a6e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2004-03-22T14:55:06Z",
    "title_canon_sha256": "585e882d7e88c277fbd284b46bf16bedcf17ffc9c042a0baf633370e6cb549b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0403199",
    "kind": "arxiv",
    "version": 1
  }
}