Pith Number

pith:BCOP3G4Y

pith:2012:BCOP3G4YKAL252MTE5EEFLXVJ3

not attested not anchored not stored refs pending

Low-mass star formation triggered by early supernova explosions

Gen Chiaki (IPMU, Naoki Yoshida (IPMU, Tetsu Kitayama (Toho University), U-Tokyo)

arxiv:1203.0820 v2 · 2012-03-05 · 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{BCOP3G4YKAL252MTE5EEFLXVJ3}

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	2026-05-18T03:38:23.659418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

089cfd9b985017aee993274842aef54ed8562b020b04f1ededf122c4996cfa1c

Aliases

arxiv: 1203.0820 · arxiv_version: 1203.0820v2 · doi: 10.48550/arxiv.1203.0820 · pith_short_12: BCOP3G4YKAL2 · pith_short_16: BCOP3G4YKAL252MT · pith_short_8: BCOP3G4Y

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/BCOP3G4YKAL252MTE5EEFLXVJ3 \
  | 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: 089cfd9b985017aee993274842aef54ed8562b020b04f1ededf122c4996cfa1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b62d3c1bcaf143bc989748c0e24d7f4903b88af310d1e80507ca6ac8c999e75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-05T06:14:58Z",
    "title_canon_sha256": "663e3e3b1df89e836df8bd1595372203f0c0ab36d4107a041b1bfd3d3352d044"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0820",
    "kind": "arxiv",
    "version": 2
  }
}