Pith Number

pith:U3LECBCL

pith:2009:U3LECBCL5BLFU5NWHWBVOKVYLS

not attested not anchored not stored refs pending

Stellar Encounters: A Stimulus for Disc Fragmentation?

Duncan Forgan (1), Institute for Astronomy, Ken Rice (1) ((1) SUPA, University of Edinburgh)

arxiv:0908.3312 v1 · 2009-08-23 · astro-ph.SR · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U3LECBCL5BLFU5NWHWBVOKVYLS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:12:23.820856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6d641044be8565a75b63d83572ab85c8a600cf9741aa44c4b8b3cd957d49861

Aliases

arxiv: 0908.3312 · arxiv_version: 0908.3312v1 · doi: 10.48550/arxiv.0908.3312 · pith_short_12: U3LECBCL5BLF · pith_short_16: U3LECBCL5BLFU5NW · pith_short_8: U3LECBCL

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/U3LECBCL5BLFU5NWHWBVOKVYLS \
  | 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: a6d641044be8565a75b63d83572ab85c8a600cf9741aa44c4b8b3cd957d49861

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31d9c5a413db138160737eee235e0763a7752b7b4a9d48b4640b179e6af59b94",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-08-23T16:43:07Z",
    "title_canon_sha256": "d6fcc339fe673f07f2f8d0364e7160800af6b0eb458d0ff1778f6ecadf89364c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3312",
    "kind": "arxiv",
    "version": 1
  }
}