Pith Number

pith:QABL7NGQ

pith:2021:QABL7NGQ6RBH372CJH4CODC6VT

not attested not anchored not stored refs pending

Ultra-high Energy Gamma-rays from Past Explosions in our Galaxy

Alokananda Kar, Nayantara Gupta

arxiv:2112.08757 v1 · 2021-12-16 · 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{QABL7NGQ6RBH372CJH4CODC6VT}

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	2026-07-05T03:58:05.564418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8002bfb4d0f4427dff4249f8270c5eaccdb34706c5d7e9c228139ab8be1b37c3

Aliases

arxiv: 2112.08757 · arxiv_version: 2112.08757v1 · doi: 10.48550/arxiv.2112.08757 · pith_short_12: QABL7NGQ6RBH · pith_short_16: QABL7NGQ6RBH372C · pith_short_8: QABL7NGQ

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/QABL7NGQ6RBH372CJH4CODC6VT \
  | 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: 8002bfb4d0f4427dff4249f8270c5eaccdb34706c5d7e9c228139ab8be1b37c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "530b8db69fd09027bb3a6f84c33d2541ac07dc52a4ad48c2558b2f43e2d27757",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-12-16T10:13:00Z",
    "title_canon_sha256": "67f1d2365d4da4bd106a7cf38d9f8b3f2dac00cdfb123d75ccbb9fadd27ba6b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.08757",
    "kind": "arxiv",
    "version": 1
  }
}