Pith Number

pith:7ULXNFTI

pith:2015:7ULXNFTINSCGVUETBIFOTFOZ7L

not attested not anchored not stored refs pending

H.E.S.S. discovery of very-high-energy gamma-ray emission of PKS 1440-389

C. Boisson, H. Prokoph, I. Sushch (for the H.E.S.S. Collaboration), J.-P. Lenain, M. B\"ottcher, Y. Becherini

arxiv:1509.03972 v1 · 2015-09-14 · 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{7ULXNFTINSCGVUETBIFOTFOZ7L}

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	2026-07-04T23:55:30.800628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd177696686c846ad0930a0ae995d9fade49baecc2b1cb24eb31ddf8c4b90a36

Aliases

arxiv: 1509.03972 · arxiv_version: 1509.03972v1 · doi: 10.48550/arxiv.1509.03972 · pith_short_12: 7ULXNFTINSCG · pith_short_16: 7ULXNFTINSCGVUET · pith_short_8: 7ULXNFTI

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/7ULXNFTINSCGVUETBIFOTFOZ7L \
  | 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: fd177696686c846ad0930a0ae995d9fade49baecc2b1cb24eb31ddf8c4b90a36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e79fa3a859c89042b35526c1e324b95269006508e1e55933818138a5fe573157",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-09-14T07:36:07Z",
    "title_canon_sha256": "742990731a1cad8f3ca057d493fa67afeb008aedac0c853a640b5382d706bb48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03972",
    "kind": "arxiv",
    "version": 1
  }
}