Pith Number

pith:ERZQIUEL

pith:2010:ERZQIUEL7O3SNAD7JXFWWK5T3T

not attested not anchored not stored refs pending

The Exotic Eclipsing Nucleus of the Ring Planetary Nebula SuWt2

B. Smalley, D. L. Pollacco, Howard E. Bond, Keivan G. Stassun, K. Exter, P. F. L. Maxted

arxiv:1009.1919 v1 · 2010-09-10 · 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{ERZQIUEL7O3SNAD7JXFWWK5T3T}

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	2026-05-18T02:05:32.277621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

247304508bfbb726807f4dcb6b2bb3dcee9edc7e2024004441a06e3652a0e25f

Aliases

arxiv: 1009.1919 · arxiv_version: 1009.1919v1 · doi: 10.48550/arxiv.1009.1919 · pith_short_12: ERZQIUEL7O3S · pith_short_16: ERZQIUEL7O3SNAD7 · pith_short_8: ERZQIUEL

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/ERZQIUEL7O3SNAD7JXFWWK5T3T \
  | 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: 247304508bfbb726807f4dcb6b2bb3dcee9edc7e2024004441a06e3652a0e25f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0ac3a1031f82cdcc8400a524ff8894c93652c7177c0d924702864935e75a52b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-09-10T01:45:20Z",
    "title_canon_sha256": "291305a858848f8d522ae845b662eb6847ae932e3e2237b565be73767e708ea1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1919",
    "kind": "arxiv",
    "version": 1
  }
}