Pith Number

pith:HDKJGHTS

pith:2011:HDKJGHTSAH4LT7BRX476YVVY4F

not attested not anchored not stored refs pending

Constraints on dark matter annihilation from M87: Signatures of prompt and inverse-Compton gamma rays

Alexander Summa, Dominik Els\"asser, Karl Mannheim, Michael R\"uger, Sheetal Saxena

arxiv:1111.3868 v1 · 2011-11-16 · 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{HDKJGHTSAH4LT7BRX476YVVY4F}

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	2026-05-18T01:59:32.235916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38d4931e7201f8b9fc31bf3fec56b8e14592a12f0cfa61e6a36c2afd664f7baf

Aliases

arxiv: 1111.3868 · arxiv_version: 1111.3868v1 · doi: 10.48550/arxiv.1111.3868 · pith_short_12: HDKJGHTSAH4L · pith_short_16: HDKJGHTSAH4LT7BR · pith_short_8: HDKJGHTS

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/HDKJGHTSAH4LT7BRX476YVVY4F \
  | 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: 38d4931e7201f8b9fc31bf3fec56b8e14592a12f0cfa61e6a36c2afd664f7baf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc09b1c6251179fc53fe71a7af285dd63b69ae7e66545ab56c517206c4ebec2f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-11-16T16:55:52Z",
    "title_canon_sha256": "6764f49642cb8219d24a540c0b38aaa76d3318b43ab0f7c788c1534ab33eb584"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3868",
    "kind": "arxiv",
    "version": 1
  }
}