Pith Number

pith:URN4EOSQ

pith:2009:URN4EOSQ3LGRXEP3PCTYKGFN46

not attested not anchored not stored refs pending

Chandra's Close Encounter with the Disintegrating Comets 73P/2006 (Schwassmann--Wachmann--3) Fragment B and C/1999 S4 (LINEAR)

4), C.M. Lisse (2), D. Bodewits (3, D.J. Christian (5), Johns Hopkins University Applied Physics Laboratory (3) KVI atomic physics (4) Goddard Space Flight Center, K. Dennerl (6) ((1) Harvard-Smithsonian Center for Astrophysics (2) Planetary Exploration Group, Scott J. Wolk (1), Solar System Exploration Division (5) Eureka Scientific Inc. (6) Max-Planck-Institut fur Extraterrestrische Physik), Space Department

arxiv:0901.4944 v1 · 2009-01-30 · astro-ph.HE · astro-ph.EP · 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{URN4EOSQ3LGRXEP3PCTYKGFN46}

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	2026-05-18T04:29:16.965405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a45bc23a50dacd1b91fb78a78518ade79ce0cce54811353a6c69cb06b76e9f36

Aliases

arxiv: 0901.4944 · arxiv_version: 0901.4944v1 · doi: 10.48550/arxiv.0901.4944 · pith_short_12: URN4EOSQ3LGR · pith_short_16: URN4EOSQ3LGRXEP3 · pith_short_8: URN4EOSQ

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/URN4EOSQ3LGRXEP3PCTYKGFN46 \
  | 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: a45bc23a50dacd1b91fb78a78518ade79ce0cce54811353a6c69cb06b76e9f36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd7750487528d2ecce2aa7703f9fd53f2797a0525487a087e5280b1ace1c8a1c",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-01-30T18:05:38Z",
    "title_canon_sha256": "1e020070953cce1039faff090d1601682079ecc6b2a1eed0bf4590ac352e2a29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4944",
    "kind": "arxiv",
    "version": 1
  }
}