Pith Number

pith:HGCMTHK7

pith:2019:HGCMTHK7GCYF2S3RPSGN4YUQGC

not attested not anchored not stored refs pending

Fermi-LAT Observations of Gamma-Ray Emission Towards the Outer Halo of M31

Chris Karwin, Igor Moskalenko, Sheldon Campbell, Simona Murgia

arxiv:1903.10533 v2 · 2019-03-25 · astro-ph.HE · 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{HGCMTHK7GCYF2S3RPSGN4YUQGC}

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	2026-05-17T23:43:27.739263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3984c99d5f30b05d4b717c8cde6290309539853de344dafb6d954f75893e3c4f

Aliases

arxiv: 1903.10533 · arxiv_version: 1903.10533v2 · doi: 10.48550/arxiv.1903.10533 · pith_short_12: HGCMTHK7GCYF · pith_short_16: HGCMTHK7GCYF2S3R · pith_short_8: HGCMTHK7

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/HGCMTHK7GCYF2S3RPSGN4YUQGC \
  | 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: 3984c99d5f30b05d4b717c8cde6290309539853de344dafb6d954f75893e3c4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a0e7ca29df75a9b23132201a649148eb385c70e5cd8f7bc6a5297bfd5b52b3f",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-03-25T18:04:30Z",
    "title_canon_sha256": "86fccc8ec18807d9076fde2e171571b1c5737893decf6303a2b1fd9f5f7a46f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.10533",
    "kind": "arxiv",
    "version": 2
  }
}