Pith Number

pith:5NW4WKAF

pith:2015:5NW4WKAFV2ZDO6N2Y2QEROCT7I

not attested not anchored not stored refs pending

Physical Properties of a Pilot Sample of Spectroscopic Close Pair Galaxies at z ~ 2

Alice E. Shapley, Charles C. Steidel, David R. Law, Jade Checlair

arxiv:1507.00721 v1 · 2015-07-02 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5NW4WKAFV2ZDO6N2Y2QEROCT7I}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:37:23.763970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb6dcb2805aeb23779bac6a048b853fa319f73459f950d8331ad77aa11072e49

Aliases

arxiv: 1507.00721 · arxiv_version: 1507.00721v1 · doi: 10.48550/arxiv.1507.00721 · pith_short_12: 5NW4WKAFV2ZD · pith_short_16: 5NW4WKAFV2ZDO6N2 · pith_short_8: 5NW4WKAF

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/5NW4WKAFV2ZDO6N2Y2QEROCT7I \
  | 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: eb6dcb2805aeb23779bac6a048b853fa319f73459f950d8331ad77aa11072e49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4a2633e1a8675b10609179ef35907b68779cfdb49086f50dbba4e67903f4942",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-02T19:57:40Z",
    "title_canon_sha256": "836aacd84d98ec487079ce66d093ccd9c0ccf2e956659114c620ec4ca619bb1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00721",
    "kind": "arxiv",
    "version": 1
  }
}