Pith Number

pith:I4ZTZBJ5

pith:2008:I4ZTZBJ5XGM6HXEZHKOH3KDO2E

not attested not anchored not stored refs pending

$SQED_4$ and $QED_4$ on the null-plane

B.M. Pimentel, G. E. R. Zambrano, R. Casana

arxiv:0803.2677 v2 · 2008-03-18 · 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{I4ZTZBJ5XGM6HXEZHKOH3KDO2E}

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	2026-05-18T02:47:16.488399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47333c853db999e3dc993a9c7da86ed10afc525a59b04d4ebe26252769f9c682

Aliases

arxiv: 0803.2677 · arxiv_version: 0803.2677v2 · doi: 10.48550/arxiv.0803.2677 · pith_short_12: I4ZTZBJ5XGM6 · pith_short_16: I4ZTZBJ5XGM6HXEZ · pith_short_8: I4ZTZBJ5

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/I4ZTZBJ5XGM6HXEZHKOH3KDO2E \
  | 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: 47333c853db999e3dc993a9c7da86ed10afc525a59b04d4ebe26252769f9c682

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6304af47854e81a40990131b169fccc569dbfb5c7ad1f212d2006ac55a01d7eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-03-18T17:11:49Z",
    "title_canon_sha256": "7485dcf5dbfbe6ea61155a7ac3f75868dc7ed086f0f6013cdf2852af213b5e81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.2677",
    "kind": "arxiv",
    "version": 2
  }
}