Pith Number

pith:FQQ2TMOU

pith:2015:FQQ2TMOU53XNEXANVOBYM77M3F

not attested not anchored not stored refs pending

Fermi/LAT Study of the Cygnus Loop Supernova Remnant: Discovery of a Point-like Source and of Spectral Differences in its gamma-ray emission

E. de O\~na-Wilhelmi, I. Reichardt, J. Rico, J. West, R. Terrier, S. Safi-Harb

arxiv:1502.03053 v2 · 2015-02-10 · 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{FQQ2TMOU53XNEXANVOBYM77M3F}

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	2026-05-18T02:25:48.621265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c21a9b1d4eeeed25c0dab83867fecd942a1ba4bc2065bb28e49f9a67730f405

Aliases

arxiv: 1502.03053 · arxiv_version: 1502.03053v2 · doi: 10.48550/arxiv.1502.03053 · pith_short_12: FQQ2TMOU53XN · pith_short_16: FQQ2TMOU53XNEXAN · pith_short_8: FQQ2TMOU

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/FQQ2TMOU53XNEXANVOBYM77M3F \
  | 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: 2c21a9b1d4eeeed25c0dab83867fecd942a1ba4bc2065bb28e49f9a67730f405

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f1b1eb6539974dd56c78784dc6a9be3f8b9e8eedee4006d607be01e45f8323d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-02-10T19:56:49Z",
    "title_canon_sha256": "7cd9c3cb040a4d561a100c8905528d8dc15734c63a3b90039128ef11ce00d381"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03053",
    "kind": "arxiv",
    "version": 2
  }
}