Pith Number

pith:2ZW7MYI5

pith:2012:2ZW7MYI547WYVRY4WFVUHQLVFF

not attested not anchored not stored refs pending

Star formation history of resolved galaxies. I. The Method

David Bersier, Emma E. Small, Liverpool John Moores University, Maurizio Salaris (Astrophysics Research Institute, UK)

arxiv:1210.0338 v2 · 2012-10-01 · 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{2ZW7MYI547WYVRY4WFVUHQLVFF}

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	2026-05-18T01:54:12.193078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d66df6611de7ed8ac71cb16b43c17529676e91faa310cfbe31950f141fec2f7c

Aliases

arxiv: 1210.0338 · arxiv_version: 1210.0338v2 · doi: 10.48550/arxiv.1210.0338 · pith_short_12: 2ZW7MYI547WY · pith_short_16: 2ZW7MYI547WYVRY4 · pith_short_8: 2ZW7MYI5

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/2ZW7MYI547WYVRY4WFVUHQLVFF \
  | 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: d66df6611de7ed8ac71cb16b43c17529676e91faa310cfbe31950f141fec2f7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5264e1d19f6035e26b13ae925f5e50084fec77f51fb784ffdb64f350b7efcd48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-01T10:18:49Z",
    "title_canon_sha256": "f6dac6579b14634bfd1b4c0ab8276e1264c46149b7c10d51a9639c905c8693f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0338",
    "kind": "arxiv",
    "version": 2
  }
}