Pith Number

pith:F63WDNCL

pith:2016:F63WDNCLSYGVWOFXONK7KGU33L

not attested not anchored not stored refs pending

Evolution of N/O Abundance Ratios and Ionization Parameters from z~0 to 2 Investigated by the Direct Temperature Method

Kimihiko Nakajima, Masami Ouchi, Takashi Kojima, Takatoshi Shibuya, Yoshiaki Ono, Yuichi Harikane

arxiv:1605.03436 v3 · 2016-05-11 · 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{F63WDNCLSYGVWOFXONK7KGU33L}

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	2026-05-18T00:42:02.771085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fb761b44b960d5b38b77355f51a9bdadb5e44bad559c496f9eb3f97c3db25c8

Aliases

arxiv: 1605.03436 · arxiv_version: 1605.03436v3 · doi: 10.48550/arxiv.1605.03436 · pith_short_12: F63WDNCLSYGV · pith_short_16: F63WDNCLSYGVWOFX · pith_short_8: F63WDNCL

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/F63WDNCLSYGVWOFXONK7KGU33L \
  | 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: 2fb761b44b960d5b38b77355f51a9bdadb5e44bad559c496f9eb3f97c3db25c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8a615d6972a345e058ee4c146eb2f7d610cda2988977cc8a161f3aa88e4967c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-11T13:35:19Z",
    "title_canon_sha256": "4f9806851c6b7cb135f25a690d917c14d2c06d4d1f2ccf7d478672f184f120d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03436",
    "kind": "arxiv",
    "version": 3
  }
}