Pith Number

pith:RJDZTDT7

pith:2015:RJDZTDT7Z4ZVI5ESIMY4QZCZBE

not attested not anchored not stored refs pending

CHAOS I: Direct Chemical Abundances for HII Regions in NGC 628

Danielle A. Berg, Evan D. Skillman, John Moustakas, Kevin V. Croxall, Mara Groh-Johnson, Richard W. Pogge

arxiv:1501.02270 v2 · 2015-01-09 · 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{RJDZTDT7Z4ZVI5ESIMY4QZCZBE}

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	2026-05-18T01:55:07.395291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a47998e7fcf335474924331c8645909084092bc1bfdcef0654a33648045bf65

Aliases

arxiv: 1501.02270 · arxiv_version: 1501.02270v2 · doi: 10.48550/arxiv.1501.02270 · pith_short_12: RJDZTDT7Z4ZV · pith_short_16: RJDZTDT7Z4ZVI5ES · pith_short_8: RJDZTDT7

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/RJDZTDT7Z4ZVI5ESIMY4QZCZBE \
  | 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: 8a47998e7fcf335474924331c8645909084092bc1bfdcef0654a33648045bf65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a30753cd137481446a7b9d919ccf792c40ac41383387d70fb46229e35a5cda6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-09T21:00:10Z",
    "title_canon_sha256": "8e87fc841ec2bed3e5b17b64e418bfe77c5a8739e1d03f864c7d0e75c5a76c60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02270",
    "kind": "arxiv",
    "version": 2
  }
}