Pith Number

pith:EMA3YNXS

pith:2019:EMA3YNXSMEDSNN6IEIGEMRJLWB

not attested not anchored not stored refs pending

Effect of interstellar objects on metallicity of low-mass first stars formed in a cosmological model

Ataru Tanikawa, Takanobu Kirihara, Tomoaki Ishiyama

arxiv:1905.02974 v1 · 2019-05-08 · astro-ph.SR · astro-ph.EP · 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{EMA3YNXSMEDSNN6IEIGEMRJLWB}

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	2026-05-17T23:46:11.618671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2301bc36f2610726b7c8220c46452bb0683ca239305856aa68774ef12d4ec045

Aliases

arxiv: 1905.02974 · arxiv_version: 1905.02974v1 · doi: 10.48550/arxiv.1905.02974 · pith_short_12: EMA3YNXSMEDS · pith_short_16: EMA3YNXSMEDSNN6I · pith_short_8: EMA3YNXS

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/EMA3YNXSMEDSNN6IEIGEMRJLWB \
  | 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: 2301bc36f2610726b7c8220c46452bb0683ca239305856aa68774ef12d4ec045

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42e1b9809574f027df0cebaca0091cb8b1d8e6b0dd7112debf8484e7085e7bc4",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-05-08T09:24:58Z",
    "title_canon_sha256": "b7a8068087994582bdc045665184da8d099d0eebf02737ac0ae42b965901e435"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.02974",
    "kind": "arxiv",
    "version": 1
  }
}