Pith Number

pith:GJ7U2C7Y

pith:2010:GJ7U2C7Y2HKK6I222GDCIBHE3L

not attested not anchored not stored refs pending

Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV

Fermi LAT collaboration

arxiv:1008.3999 v2 · 2010-08-24 · astro-ph.HE · hep-ex · 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{GJ7U2C7Y2HKK6I222GDCIBHE3L}

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	2026-05-18T03:48:01.220041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

327f4d0bf8d1d4af235ad1862404e4daeb20978c1e3b7e1c4b63b195263d947c

Aliases

arxiv: 1008.3999 · arxiv_version: 1008.3999v2 · doi: 10.48550/arxiv.1008.3999 · pith_short_12: GJ7U2C7Y2HKK · pith_short_16: GJ7U2C7Y2HKK6I22 · pith_short_8: GJ7U2C7Y

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/GJ7U2C7Y2HKK6I222GDCIBHE3L \
  | 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: 327f4d0bf8d1d4af235ad1862404e4daeb20978c1e3b7e1c4b63b195263d947c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd2cabebb6680b5d3ed400d81a980a505057d7ea3585100df2489f850d401320",
    "cross_cats_sorted": [
      "hep-ex",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-08-24T09:54:27Z",
    "title_canon_sha256": "4c6013ebb43dbaf0c09d105d5e2faed55519424c73c6e27c5ac34dd21fca77fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.3999",
    "kind": "arxiv",
    "version": 2
  }
}