Pith Number

pith:2CF3PYUX

pith:2011:2CF3PYUXJXLMPD2BTWKSQLLAZB

not attested not anchored not stored refs pending

Identification of three new proto-Planetary Nebulae exhibiting the unidentified feature at 21 um

(2) Harvard-Smithsonian Center for Astrophysics, (3) INAF-Catania Astrophysical Observatory), A. Hart (2), C. Trigilio (3), G. Fazio (2) ((1) Max-Planck-Institut fuer Radioastronomie, G. Umana (3), J. L. Hora (2), L. Cerrigone (1)

arxiv:1106.6018 v1 · 2011-06-29 · 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{2CF3PYUXJXLMPD2BTWKSQLLAZB}

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	2026-05-18T01:10:11.314793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d08bb7e2974dd6c78f419d95282d60c85c9a3554ca9ba81c7b73169d0fa94a94

Aliases

arxiv: 1106.6018 · arxiv_version: 1106.6018v1 · doi: 10.48550/arxiv.1106.6018 · pith_short_12: 2CF3PYUXJXLM · pith_short_16: 2CF3PYUXJXLMPD2B · pith_short_8: 2CF3PYUX

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/2CF3PYUXJXLMPD2BTWKSQLLAZB \
  | 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: d08bb7e2974dd6c78f419d95282d60c85c9a3554ca9ba81c7b73169d0fa94a94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e59adc1a75893438905dcbea0dcf396cc8f12f945610a709e343bf52c37cc8e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-06-29T18:18:29Z",
    "title_canon_sha256": "31421ab4c6019c23665402f35f501969e4e1cc3be565329b7941e41a8d347e3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.6018",
    "kind": "arxiv",
    "version": 1
  }
}