Pith Number

pith:BBCRQ52D

pith:2010:BBCRQ52DYVSDSHSCZGXLNJ26AA

not attested not anchored not stored refs pending

Modelling the chemical evolution

Gerhard Hensler, Simone Recchi (Institute of Astronomy, University of Vienna)

arxiv:1002.3882 v1 · 2010-02-20 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BBCRQ52DYVSDSHSCZGXLNJ26AA}

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	2026-05-18T02:08:58.598180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0845187743c564391e42c9aeb6a75e002c4ff7ce27dbff13c940a26d0c13ca56

Aliases

arxiv: 1002.3882 · arxiv_version: 1002.3882v1 · doi: 10.48550/arxiv.1002.3882 · pith_short_12: BBCRQ52DYVSD · pith_short_16: BBCRQ52DYVSDSHSC · pith_short_8: BBCRQ52D

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/BBCRQ52DYVSDSHSCZGXLNJ26AA \
  | 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: 0845187743c564391e42c9aeb6a75e002c4ff7ce27dbff13c940a26d0c13ca56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a6a95934197af7e381b58bbab34876c9e586136aac31bb0a22b012e8f62d73e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-20T13:09:13Z",
    "title_canon_sha256": "486e85df39b2b67729496ef75c12a3e1089df1ff9d4d56a5e3fed81680596176"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3882",
    "kind": "arxiv",
    "version": 1
  }
}