Pith Number

pith:4B6JDELX

pith:2021:4B6JDELXPNZAC6UCNVIISUOU5W

not attested not anchored not stored refs pending

Spectroscopic Variability of the Compact Planetary Nebula Hb 12

A.V. Dodin, I.A. Shaposhnikov, M.A. Burlak, N.I. Shatsky, N.P. Ikonnikova, S.A. Potanin, V.F. Esipov, V.P. Arkhipova

arxiv:2111.00491 v1 · 2021-10-31 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4B6JDELXPNZAC6UCNVIISUOU5W}

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	2026-07-05T03:27:43.295017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e07c9191777b72017a826d508951d4ed9eac8e59dbc9793885d58cd3a56c8370

Aliases

arxiv: 2111.00491 · arxiv_version: 2111.00491v1 · doi: 10.48550/arxiv.2111.00491 · pith_short_12: 4B6JDELXPNZA · pith_short_16: 4B6JDELXPNZAC6UC · pith_short_8: 4B6JDELX

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/4B6JDELXPNZAC6UCNVIISUOU5W \
  | 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: e07c9191777b72017a826d508951d4ed9eac8e59dbc9793885d58cd3a56c8370

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4e0ab5eff18844bccb2be3daa3343af967e8e1015028ddf6ee7e02d5f4cf000",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-10-31T13:14:09Z",
    "title_canon_sha256": "f72b229b0eeb3520c8010f513a8ea4a198790dfc0e8c2c6b56822aeb4d374a36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.00491",
    "kind": "arxiv",
    "version": 1
  }
}