Pith Number

pith:5JCGDDTW

pith:2019:5JCGDDTW5T2G7BB7FSZQXHKW4T

not attested not anchored not stored refs pending

Secular evolution and pseudo-bulges

Francoise Combes (LERMA, Obs-Paris)

arxiv:1908.03149 v1 · 2019-08-08 · 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{5JCGDDTW5T2G7BB7FSZQXHKW4T}

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	2026-07-05T01:04:00.772802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea44618e76ecf46f843f2cb30b9d56e4e508192e06be5c40b9da28b49a033d14

Aliases

arxiv: 1908.03149 · arxiv_version: 1908.03149v1 · doi: 10.48550/arxiv.1908.03149 · pith_short_12: 5JCGDDTW5T2G · pith_short_16: 5JCGDDTW5T2G7BB7 · pith_short_8: 5JCGDDTW

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/5JCGDDTW5T2G7BB7FSZQXHKW4T \
  | 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: ea44618e76ecf46f843f2cb30b9d56e4e508192e06be5c40b9da28b49a033d14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcc6c8372bc5d8dc96047bcb7f1698eba7f2975b43c78cc47f147c4094d0cf54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-08T16:19:50Z",
    "title_canon_sha256": "c8b7f507f5a2f6ebd58d252f63895accaa7054eb67452afd067f7bfdfc833b88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03149",
    "kind": "arxiv",
    "version": 1
  }
}