Pith Number

pith:IVFPIUM4

pith:2016:IVFPIUM4PELHTNSTXAY652NIZY

not attested not anchored not stored refs pending

Carbon monoxide in an extremely metal-poor galaxy

Cai-Na Hao (TJNU), Junzhi Wang (SHAO), Qiusheng Gu (NJU), Xiao-Yang Xia (TJNU), Yong Shi (NJU), Yu Gao (PMO), Zhi-Yu Zhang (Edinburgh)

arxiv:1612.03980 v1 · 2016-12-13 · 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{IVFPIUM4PELHTNSTXAY652NIZY}

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	2026-05-18T00:53:29.322666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

454af4519c791679b653b831eee9a8ce29f6d00e4094a66cfb7eee3df104c0de

Aliases

arxiv: 1612.03980 · arxiv_version: 1612.03980v1 · doi: 10.48550/arxiv.1612.03980 · pith_short_12: IVFPIUM4PELH · pith_short_16: IVFPIUM4PELHTNST · pith_short_8: IVFPIUM4

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/IVFPIUM4PELHTNSTXAY652NIZY \
  | 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: 454af4519c791679b653b831eee9a8ce29f6d00e4094a66cfb7eee3df104c0de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93c08e5e69cd39e9abf2d9b16040806b2756b402e94b0aec6b7e3a471040f6aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-13T00:05:49Z",
    "title_canon_sha256": "aa6904a461a4745255b0467ee9d1866b04577fc733b9c5d392488020a3a4d54a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.03980",
    "kind": "arxiv",
    "version": 1
  }
}