Pith Number

pith:GQSQVLGP

pith:2015:GQSQVLGP4JB5AFNHRMYGYI5Q4R

not attested not anchored not stored refs pending

External pressure-triggering of star formation in a disc galaxy: a template for positive feedback

Gary Mamon, Joseph Silk, Rebekka Bieri, Volker Gaibler, Yohan Dubois

arxiv:1507.00730 v1 · 2015-07-02 · 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{GQSQVLGP4JB5AFNHRMYGYI5Q4R}

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	2026-05-18T01:24:18.812454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34250aaccfe243d015a78b306c23b0e45534caed27e6bdce888696693d6eca8c

Aliases

arxiv: 1507.00730 · arxiv_version: 1507.00730v1 · doi: 10.48550/arxiv.1507.00730 · pith_short_12: GQSQVLGP4JB5 · pith_short_16: GQSQVLGP4JB5AFNH · pith_short_8: GQSQVLGP

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/GQSQVLGP4JB5AFNHRMYGYI5Q4R \
  | 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: 34250aaccfe243d015a78b306c23b0e45534caed27e6bdce888696693d6eca8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7456f60abc2e1aa3c12b1efdf83631a26d3a3906b8f496b974780ed615d22713",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-02T20:00:39Z",
    "title_canon_sha256": "6f7904883f726bc1e9eb612de8a51ec49ba7aa0beafdad0437432c358dad1de0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00730",
    "kind": "arxiv",
    "version": 1
  }
}