Pith Number

pith:6S2ZE43O

pith:2013:6S2ZE43OQQ3WSSAZVVL2PMWSF7

not attested not anchored not stored refs pending

First Results from NuSTAR Observations of Mkn 421

A. E. Wehrle, A. Furniss, B. Giebels, B. Humensky, B. W. Grefenstette, C. J. Hailey, C. M. Urry, C. S. Reynolds, D. L. Meier, D. Paneque, D. Stern, F. A. Harrison, F. Borracci, F. E. Christensen, F. Fuerst, G. Ghisellini, G. M. Madejski, G. Tagliaferri, H. Krawczynski, J. Chiang, J. E. Koglin, K. Forster, K. K. Madsen, M. Ajello, M. Balokovi\'c, M. Hayashida, M. Perri, P. Giommi, P. Ogle, R. D. Blandford, S. E. Boggs, S. Puccetti, T. Nelson, T. Sbarrato, W. W. Craig, W. W. Zhang, Y. Inoue

arxiv:1309.4494 v2 · 2013-09-17 · 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{6S2ZE43OQQ3WSSAZVVL2PMWSF7}

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	2026-05-18T01:47:36.123622Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4b592736e8437694819ad57a7b2d22fe4bca7d4ea8e31f0b6d2c77c14469fda

Aliases

arxiv: 1309.4494 · arxiv_version: 1309.4494v2 · doi: 10.48550/arxiv.1309.4494 · pith_short_12: 6S2ZE43OQQ3W · pith_short_16: 6S2ZE43OQQ3WSSAZ · pith_short_8: 6S2ZE43O

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/6S2ZE43OQQ3WSSAZVVL2PMWSF7 \
  | 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: f4b592736e8437694819ad57a7b2d22fe4bca7d4ea8e31f0b6d2c77c14469fda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86d34543e4297ab2c1df64118dee48083250bba90c1ad543fda8d4d4db4fe051",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-09-17T22:29:33Z",
    "title_canon_sha256": "b6c087bd8d52cfd8b676c049fa69f151a5b1ec13b544367eca3f744dac71f78a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4494",
    "kind": "arxiv",
    "version": 2
  }
}