Pith Number

pith:DWGMTGTU

pith:2013:DWGMTGTUTYDQI5AAIVJZ6FLJJ2

not attested not anchored not stored refs pending

Improved Photometry for the DASCH Pipeline

Edward Los, Jonathan Grindlay, Mathieu Servillat, Sumin Tang

arxiv:1304.7504 v3 · 2013-04-28 · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DWGMTGTUTYDQI5AAIVJZ6FLJJ2}

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	2026-05-18T01:50:14.889325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d8cc99a749e0704740045539f15694eb502c4b1c9f9819e9a445a707e352ed6

Aliases

arxiv: 1304.7504 · arxiv_version: 1304.7504v3 · doi: 10.48550/arxiv.1304.7504 · pith_short_12: DWGMTGTUTYDQ · pith_short_16: DWGMTGTUTYDQI5AA · pith_short_8: DWGMTGTU

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/DWGMTGTUTYDQI5AAIVJZ6FLJJ2 \
  | 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: 1d8cc99a749e0704740045539f15694eb502c4b1c9f9819e9a445a707e352ed6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d352a484f9adba80a708ffdb95abe4389ea9fae167a2276aa830020459656577",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-04-28T19:23:13Z",
    "title_canon_sha256": "7d5db11060ea048e3b435861f4c8fa98c23f1073390e3992532143f026d73a71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7504",
    "kind": "arxiv",
    "version": 3
  }
}