Pith Number

pith:NSARUZD5

pith:2016:NSARUZD5JT32FSQ5HDOJMH6ZD2

not attested not anchored not stored refs pending

Understanding inverse metallicity gradients in galactic discs as a consequence of inside-out formation

Paul McMillan, Ralph Sch\"onrich

arxiv:1605.02338 v2 · 2016-05-08 · 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{NSARUZD5JT32FSQ5HDOJMH6ZD2}

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	2026-05-18T00:46:59.627746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c811a647d4cf7a2ca1d38dc961fd91ea78cbdf6d8632d60d699796b74571ed5

Aliases

arxiv: 1605.02338 · arxiv_version: 1605.02338v2 · doi: 10.48550/arxiv.1605.02338 · pith_short_12: NSARUZD5JT32 · pith_short_16: NSARUZD5JT32FSQ5 · pith_short_8: NSARUZD5

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/NSARUZD5JT32FSQ5HDOJMH6ZD2 \
  | 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: 6c811a647d4cf7a2ca1d38dc961fd91ea78cbdf6d8632d60d699796b74571ed5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c521165df8658a103044fbad71858cc4b255954f19600d1b57720acba158e78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-08T17:17:20Z",
    "title_canon_sha256": "ff48316bdfe6a81551fc131d7963adb469c62d816411f6f46d95fe76d70d5129"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02338",
    "kind": "arxiv",
    "version": 2
  }
}