Pith Number

pith:HFZIFGEB

pith:2015:HFZIFGEB3LPCO2NBGIWEKAD2XM

not attested not anchored not stored refs pending

HST Images Flash Ionization of Old Ejecta by the 2011 Eruption of Recurrent Nova T Pyxidis

Ashley Pagnotta, Bradley E. Schaefer, David Zurek, Dina Prialnik, Edward M. Sion, Howard E. Bond, Jayashree Toraskar, Michael M. Shara, Mordecai-Mark Mac Low, Patrick Godon, Robert E. Williams

arxiv:1503.08840 v1 · 2015-03-30 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HFZIFGEB3LPCO2NBGIWEKAD2XM}

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	2026-05-18T01:59:36.801801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3972829881dade2769a1322c45007abb2052cceea06e40e9174291047ccbe29c

Aliases

arxiv: 1503.08840 · arxiv_version: 1503.08840v1 · doi: 10.48550/arxiv.1503.08840 · pith_short_12: HFZIFGEB3LPC · pith_short_16: HFZIFGEB3LPCO2NB · pith_short_8: HFZIFGEB

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/HFZIFGEB3LPCO2NBGIWEKAD2XM \
  | 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: 3972829881dade2769a1322c45007abb2052cceea06e40e9174291047ccbe29c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ee2dd2a7cd234989369a646e6d36ccb930f019db9485877d2dabb9c1be23233",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-03-30T20:07:50Z",
    "title_canon_sha256": "5391b6fe93a6406f6249b8713d46fceb40e91cd206298b3e4d223ee562b5bd09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08840",
    "kind": "arxiv",
    "version": 1
  }
}