Pith Number

pith:RI3GSAOM

pith:2009:RI3GSAOMITQRZGZWJY2M3EUGB4

not attested not anchored not stored refs pending

Discovery, Photometry, and Kinematics of Planetary Nebulae in M 82

(2) IfA, A. M. Teodorescu (2) ((1) University of Washington, L. C. Johnson (1), R. H. Mendez (2), University of Hawaii)

arxiv:0904.0266 v1 · 2009-04-01 · astro-ph.CO · 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{RI3GSAOMITQRZGZWJY2M3EUGB4}

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	2026-05-18T04:29:15.426557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a366901cc44e11c9b364e34cd92860f0d5e6188726d76acb34c582d6eb08c48

Aliases

arxiv: 0904.0266 · arxiv_version: 0904.0266v1 · doi: 10.48550/arxiv.0904.0266 · pith_short_12: RI3GSAOMITQR · pith_short_16: RI3GSAOMITQRZGZW · pith_short_8: RI3GSAOM

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/RI3GSAOMITQRZGZWJY2M3EUGB4 \
  | 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: 8a366901cc44e11c9b364e34cd92860f0d5e6188726d76acb34c582d6eb08c48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcca98d7f2e36befa274e051197c0b00eae0eb4c6362a0da3f4b834e9e19cd1b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-01T22:17:35Z",
    "title_canon_sha256": "070c9065df82a56794dff4ec5cc65addfdcaf8db0cb775d22a8c3ce3305f319b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0266",
    "kind": "arxiv",
    "version": 1
  }
}