Pith Number

pith:IIKTYACN

pith:2009:IIKTYACNSHIBY54CM35SJOFWW4

not attested not anchored not stored refs pending

The Point of E_8 in F-theory GUTs

Alireza Tavanfar, Cumrun Vafa, Jonathan J. Heckman

arxiv:0906.0581 v2 · 2009-06-03 · hep-th · astro-ph.HE · 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{IIKTYACNSHIBY54CM35SJOFWW4}

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	2026-05-18T02:34:45.966575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42153c004d91d01c778266fb24b8b6b724b182044dc1017ae87b8d5e4a9bdc15

Aliases

arxiv: 0906.0581 · arxiv_version: 0906.0581v2 · doi: 10.48550/arxiv.0906.0581 · pith_short_12: IIKTYACNSHIB · pith_short_16: IIKTYACNSHIBY54C · pith_short_8: IIKTYACN

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/IIKTYACNSHIBY54CM35SJOFWW4 \
  | 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: 42153c004d91d01c778266fb24b8b6b724b182044dc1017ae87b8d5e4a9bdc15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "272699437c0d786a109e8e0b448cc215c401dbf82740cc7242cec678b67ab6d2",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-06-03T19:02:57Z",
    "title_canon_sha256": "5a6e3293b4750901d82b57cecb3c4612851c9db4e9e2c722ad2ab4e1fe65836f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0581",
    "kind": "arxiv",
    "version": 2
  }
}