Pith Number

pith:CN4WHKBI

pith:2010:CN4WHKBISGLG4OXQV3KRD5DXRF

not attested not anchored not stored refs pending

High Resolution Optical Spectroscopy of the F Supergiant Proto-Planetary Nebula V887 Her=IRAS 18095+2704

David L. Lambert, N. S. Tavolganskaya, Timur Sahin, Valentina G. Klochkova

arxiv:1008.0358 v1 · 2010-08-02 · 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{CN4WHKBISGLG4OXQV3KRD5DXRF}

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	2026-05-18T02:06:00.276397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

137963a82891966e3af0aed511f4778956c84c2ad050a3b3c13f132185a4bf86

Aliases

arxiv: 1008.0358 · arxiv_version: 1008.0358v1 · doi: 10.48550/arxiv.1008.0358 · pith_short_12: CN4WHKBISGLG · pith_short_16: CN4WHKBISGLG4OXQ · pith_short_8: CN4WHKBI

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/CN4WHKBISGLG4OXQV3KRD5DXRF \
  | 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: 137963a82891966e3af0aed511f4778956c84c2ad050a3b3c13f132185a4bf86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d06871c86d39132ca3ff39f55ae92a7ec8578eb5b6b4d3c1d7c295748f26e84d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-08-02T17:33:57Z",
    "title_canon_sha256": "02fa10fab1908603580ba7ecf74856f82207dd0f586574280f1ddc5f2bede561"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.0358",
    "kind": "arxiv",
    "version": 1
  }
}