Pith Number

pith:O4OAMPHU

pith:2014:O4OAMPHURKEGWM3GYUG6CCXI2T

not attested not anchored not stored refs pending

HESS J1640-465 and HESS J1641-463: two intriguing TeV sources in the light of new Fermi LAT observations

F. Acero, H. Laffon, J. Ballet, M.-H. Grondin, M. Lemoine-Goumard, T. Reposeur

arxiv:1409.4994 v1 · 2014-09-17 · 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{O4OAMPHURKEGWM3GYUG6CCXI2T}

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	2026-05-18T01:42:01.778917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

771c063cf48a886b3366c50de10ae8d4ebad54b2851214e2fc941addb6b8395b

Aliases

arxiv: 1409.4994 · arxiv_version: 1409.4994v1 · doi: 10.48550/arxiv.1409.4994 · pith_short_12: O4OAMPHURKEG · pith_short_16: O4OAMPHURKEGWM3G · pith_short_8: O4OAMPHU

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/O4OAMPHURKEGWM3GYUG6CCXI2T \
  | 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: 771c063cf48a886b3366c50de10ae8d4ebad54b2851214e2fc941addb6b8395b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "541089ee63c9098b341fdee99b56badadde65db5c80a4eacc80aa83a5fe7a1e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-09-17T13:42:51Z",
    "title_canon_sha256": "1dcd6771604613759ddafe13f001f5618a48f0236f25ba0a377182de74667e3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4994",
    "kind": "arxiv",
    "version": 1
  }
}