Pith Number

pith:XVXO5C3M

pith:2007:XVXO5C3M6XK25NR56IIRGXACWT

not attested not anchored not stored refs pending

The hydrogen-deficient knot of the `born again' planetary nebula Abell 58 (V605 Aql)

B. Ercolano, M.J. Barlow, O. De Marco, P.J. Storey, R. Wesson, X-W. Liu

arxiv:0711.1139 v1 · 2007-11-07 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XVXO5C3M6XK25NR56IIRGXACWT}

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	2026-07-04T17:06:33.856322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd6eee8b6cf5d5aeb63df211135c02b4d50be3a8b4f3713c7b1d0712f12b2474

Aliases

arxiv: 0711.1139 · arxiv_version: 0711.1139v1 · doi: 10.48550/arxiv.0711.1139 · pith_short_12: XVXO5C3M6XK2 · pith_short_16: XVXO5C3M6XK25NR5 · pith_short_8: XVXO5C3M

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/XVXO5C3M6XK25NR56IIRGXACWT \
  | 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: bd6eee8b6cf5d5aeb63df211135c02b4d50be3a8b4f3713c7b1d0712f12b2474

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2cc0ba9639ae30fef847e2abe524411138ef735d84af9a10bec7e1309c4f956",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-07T19:15:04Z",
    "title_canon_sha256": "1e5ff757bc6c0699aa85e72b4f6c6a4bb3e30c8f9353c32e522d45747015ae4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.1139",
    "kind": "arxiv",
    "version": 1
  }
}