Pith Number

pith:4KBQ474O

pith:2017:4KBQ474OIWYBVK5F7LOURMEFD3

not attested not anchored not stored refs pending

Hard X-ray Emission from the M87 AGN Detected with NuSTAR

Dacheng Lin, Jimmy A. Irwin, Ka-Wah Wong, Rodrigo S. Nemmen

arxiv:1710.05031 v3 · 2017-10-13 · 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{4KBQ474OIWYBVK5F7LOURMEFD3}

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	2026-05-18T00:31:18.546025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2830e7f8e45b01aaba5fadd48b0851ed452e57ab2cb456f44f36697006a4d43

Aliases

arxiv: 1710.05031 · arxiv_version: 1710.05031v3 · doi: 10.48550/arxiv.1710.05031 · pith_short_12: 4KBQ474OIWYB · pith_short_16: 4KBQ474OIWYBVK5F · pith_short_8: 4KBQ474O

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/4KBQ474OIWYBVK5F7LOURMEFD3 \
  | 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: e2830e7f8e45b01aaba5fadd48b0851ed452e57ab2cb456f44f36697006a4d43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "531590d1ae7ca76e5e61e35cfbebb0a71741b3b42d18a4a7c317b593cadf2735",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-10-13T18:00:05Z",
    "title_canon_sha256": "ec652a6f66040c9f9f0f4334d097fd060d3ccb63e7e7745f83eb82bef14b3e3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.05031",
    "kind": "arxiv",
    "version": 3
  }
}