Pith Number

pith:J2TMBZOF

pith:2012:J2TMBZOFYR7I42WS7ROXC7LZXS

not attested not anchored not stored refs pending

Sources of GeV Photons and the Fermi Results

Charles D. Dermer (NRL)

arxiv:1202.2814 v1 · 2012-02-13 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J2TMBZOFYR7I42WS7ROXC7LZXS}

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	2026-05-18T04:02:25.650229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ea6c0e5c5c47e8e6ad2fc5d717d79bc909e25655554c4792ef0419daea8cd9a

Aliases

arxiv: 1202.2814 · arxiv_version: 1202.2814v1 · doi: 10.48550/arxiv.1202.2814 · pith_short_12: J2TMBZOFYR7I · pith_short_16: J2TMBZOFYR7I42WS · pith_short_8: J2TMBZOF

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/J2TMBZOFYR7I42WS7ROXC7LZXS \
  | 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: 4ea6c0e5c5c47e8e6ad2fc5d717d79bc909e25655554c4792ef0419daea8cd9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42f6a54d0637b97d4f8746923a79c0ef67af2902f864eab2a9913bab2c7b090f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-02-13T18:44:58Z",
    "title_canon_sha256": "d85744c5a9ae5a38ce19e26d602d980ee05f360fed7d42fc6bfd954a72290d16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2814",
    "kind": "arxiv",
    "version": 1
  }
}