Pith Number

pith:3QUIBEMG

pith:2007:3QUIBEMGRKWZMWMJJ5N7BDTUST

not attested not anchored not stored refs pending

The S2N2 metallicity calibrator and the abundance gradient of M 33

A. Mampaso, G. Delgado-Inglada, K. Viironen, L. Magrini, R. L. M. Corradi

arxiv:0708.2178 v1 · 2007-08-16 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3QUIBEMGRKWZMWMJJ5N7BDTUST}

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	2026-07-04T17:05:12.797876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc288091868aad9659894f5bf08e7494c193c9bf1d57a06cddd9088c6b806d15

Aliases

arxiv: 0708.2178 · arxiv_version: 0708.2178v1 · doi: 10.48550/arxiv.0708.2178 · pith_short_12: 3QUIBEMGRKWZ · pith_short_16: 3QUIBEMGRKWZMWMJ · pith_short_8: 3QUIBEMG

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/3QUIBEMGRKWZMWMJJ5N7BDTUST \
  | 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: dc288091868aad9659894f5bf08e7494c193c9bf1d57a06cddd9088c6b806d15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7575237245355e1bd0bc0c882ac542b43d725c660acbbf7d85ecc1a4c9daf0ac",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-08-16T11:55:13Z",
    "title_canon_sha256": "5ead934a619661ca47af07ac0dd4564c38a561ad39ec2763123db4f9b71ee6a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.2178",
    "kind": "arxiv",
    "version": 1
  }
}