Pith Number

pith:JEKFWAKM

pith:2012:JEKFWAKMQZSNHWTR2C3ZFHOPT3

not attested not anchored not stored refs pending

Flux density variations of radio sources in M82 over the last 3 decades

D. M. Fenech, M. A. Gendre, M. K. Argo, R. J. Beswick, T. W. B. Muxlow

arxiv:1209.6478 v1 · 2012-09-28 · astro-ph.CO · 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{JEKFWAKMQZSNHWTR2C3ZFHOPT3}

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	2026-05-18T01:54:12.918082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49145b014c8664d3da71d0b7929dcf9ecf83b76e880407c60b7946fc6a4ff998

Aliases

arxiv: 1209.6478 · arxiv_version: 1209.6478v1 · doi: 10.48550/arxiv.1209.6478 · pith_short_12: JEKFWAKMQZSN · pith_short_16: JEKFWAKMQZSNHWTR · pith_short_8: JEKFWAKM

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/JEKFWAKMQZSNHWTR2C3ZFHOPT3 \
  | 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: 49145b014c8664d3da71d0b7929dcf9ecf83b76e880407c60b7946fc6a4ff998

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "451627c0ec7e41db4ea56b9e2c6ea07c301d956929060117389a1fd590869772",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-28T10:47:47Z",
    "title_canon_sha256": "87dae18af659df44ca792a3577125842f12fd6c53c4be314114f72c5eeb476ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.6478",
    "kind": "arxiv",
    "version": 1
  }
}