Pith Number

pith:OBFK3VKW

pith:2011:OBFK3VKW3HX7PEFASOAOEDYID5

not attested not anchored not stored refs pending

New Results for the Open Cluster Bica 6 and its Associated Planetary Nebula Abell 8

Arne A. Henden, Daniel J. Majaess, David D. Balam, David G. Turner, David J. Lane, Joanne M. Rosvick

arxiv:1109.6006 v1 · 2011-09-27 · 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{OBFK3VKW3HX7PEFASOAOEDYID5}

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	2026-05-18T02:00:22.525042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

704aadd556d9eff790a09380e20f081f49885e2b788ac1b51013fa34b33f6fa7

Aliases

arxiv: 1109.6006 · arxiv_version: 1109.6006v1 · doi: 10.48550/arxiv.1109.6006 · pith_short_12: OBFK3VKW3HX7 · pith_short_16: OBFK3VKW3HX7PEFA · pith_short_8: OBFK3VKW

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/OBFK3VKW3HX7PEFASOAOEDYID5 \
  | 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: 704aadd556d9eff790a09380e20f081f49885e2b788ac1b51013fa34b33f6fa7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f49a4082da1f3f301d2fd0af6a2a9cb17a529d3c36ce6e212164a5bdad195e4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-27T20:00:00Z",
    "title_canon_sha256": "a8f4fba48138441a97c3e1e5ba951ff06c138c1afeb79c458b73241a69bc4609"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6006",
    "kind": "arxiv",
    "version": 1
  }
}