Pith Number

pith:2L3JI6O3

pith:2010:2L3JI6O3RGGQPZB7VOZIIMKMHY

not attested not anchored not stored refs pending

The Recent Star Formation History of NGC 5102

Colin A. Norman, Kenneth C. Freeman, Peter J. Quinn, Sebastian L. Hidalgo, Sylvie F. Beaulieu

arxiv:1001.2236 v1 · 2010-01-13 · 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{2L3JI6O3RGGQPZB7VOZIIMKMHY}

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	2026-05-18T02:09:52.720023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2f69479db898d07e43fabb284314c3e0370f3ffa3c618ca78dbaeba7995b06c

Aliases

arxiv: 1001.2236 · arxiv_version: 1001.2236v1 · doi: 10.48550/arxiv.1001.2236 · pith_short_12: 2L3JI6O3RGGQ · pith_short_16: 2L3JI6O3RGGQPZB7 · pith_short_8: 2L3JI6O3

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/2L3JI6O3RGGQPZB7VOZIIMKMHY \
  | 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: d2f69479db898d07e43fabb284314c3e0370f3ffa3c618ca78dbaeba7995b06c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4ecb2b2410b4f8821fb54348f769dab61fe1f71a55bf8dfd428c5362032dad9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-01-13T17:22:13Z",
    "title_canon_sha256": "cab8acc51908ebaad76a2c34cbec1176f8e59544ffbe83a9009cb019399aa27d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2236",
    "kind": "arxiv",
    "version": 1
  }
}