Pith Number

pith:XJYK73JO

pith:2011:XJYK73JOVE7ZORX2TFU26NFKBN

not attested not anchored not stored refs pending

Collapse of a molecular cloud core to stellar densities: the formation and evolution of pre-stellar discs

Matthew R. Bate

arxiv:1108.0009 v1 · 2011-07-29 · 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{XJYK73JOVE7ZORX2TFU26NFKBN}

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	2026-05-18T02:01:05.474867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba70afed2ea93f9746fa9969af34aa0b6cee18c6c1f6c9a3a5c09330b6c887aa

Aliases

arxiv: 1108.0009 · arxiv_version: 1108.0009v1 · doi: 10.48550/arxiv.1108.0009 · pith_short_12: XJYK73JOVE7Z · pith_short_16: XJYK73JOVE7ZORX2 · pith_short_8: XJYK73JO

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/XJYK73JOVE7ZORX2TFU26NFKBN \
  | 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: ba70afed2ea93f9746fa9969af34aa0b6cee18c6c1f6c9a3a5c09330b6c887aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "035b58f77bf65ab4e157c1ec802e4dc5318dc2219ee224e5aca377eac73e7b32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-07-29T20:19:39Z",
    "title_canon_sha256": "68cc665590c1d2cbb67787fb54c853c7c9ceb253c6ed853b6cab7a44e87d5ffa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0009",
    "kind": "arxiv",
    "version": 1
  }
}