Pith Number

pith:ADJJTU6C

pith:2020:ADJJTU6C6VZOU4HKMZPDHFSAGR

not attested not anchored not stored refs pending

Startlingly Fast Evolution of the Stingray Planetary Nebula and its Central Star, V839 Arae

Bradley E. Schaefer, Howard E. Bond, Kailash C. Sahu

arxiv:2012.04223 v1 · 2020-12-08 · 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{ADJJTU6C6VZOU4HKMZPDHFSAGR}

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	2026-07-05T01:58:02.080383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00d299d3c2f572ea70ea665e339640345e8ee75b064dff30f7775117a91d8729

Aliases

arxiv: 2012.04223 · arxiv_version: 2012.04223v1 · doi: 10.48550/arxiv.2012.04223 · pith_short_12: ADJJTU6C6VZO · pith_short_16: ADJJTU6C6VZOU4HK · pith_short_8: ADJJTU6C

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/ADJJTU6C6VZOU4HKMZPDHFSAGR \
  | 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: 00d299d3c2f572ea70ea665e339640345e8ee75b064dff30f7775117a91d8729

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d54774ea6b46ba799320d90e87f01bd66dd76960da547f88b998b605c70abef",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-12-08T05:19:50Z",
    "title_canon_sha256": "7438d15b107d8f13c35fed2a28db408c569e0ef014a2954677481f0f5a717884"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.04223",
    "kind": "arxiv",
    "version": 1
  }
}