Pith Number

pith:K3K7TPWS

pith:2009:K3K7TPWSNB3LVHNKSOJCIBDRXC

not attested not anchored not stored refs pending

Fermi-LAT Discovery of Extended Gamma-ray Emission in the Direction of Supernova Remnant W51C

Fermi LAT collaboration

arxiv:0910.0908 v1 · 2009-10-06 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K3K7TPWSNB3LVHNKSOJCIBDRXC}

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	2026-05-18T03:48:02.217369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56d5f9bed26876ba9daa9392240471b8ad9f00191e3ae99ee122317fed27f3ea

Aliases

arxiv: 0910.0908 · arxiv_version: 0910.0908v1 · doi: 10.48550/arxiv.0910.0908 · pith_short_12: K3K7TPWSNB3L · pith_short_16: K3K7TPWSNB3LVHNK · pith_short_8: K3K7TPWS

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/K3K7TPWSNB3LVHNKSOJCIBDRXC \
  | 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: 56d5f9bed26876ba9daa9392240471b8ad9f00191e3ae99ee122317fed27f3ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab7df0a4e541cb26559303021ef2612de6b96747fe2091ad8351e597cc4e8431",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-10-06T19:02:49Z",
    "title_canon_sha256": "d5ccb6cbda981f0b984c1368ddea3ee0150cf6f2b4a4661d9a831769509089a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0908",
    "kind": "arxiv",
    "version": 1
  }
}