Pith Number

pith:3HMBOPQD

pith:2018:3HMBOPQDNRDXQA5GJS6EXSDKIB

not attested not anchored not stored refs pending

Chemical Abundances of new member stars in the Tucana II dwarf galaxy

Alexander P. Ji, Anirudh Chiti, Anna Frebel, Dongwon Kim, Helmut Jerjen, John E. Norris

arxiv:1803.01808 v2 · 2018-03-05 · 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{3HMBOPQDNRDXQA5GJS6EXSDKIB}

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	2026-05-18T00:17:04.400012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9d8173e036c477803a64cbc4bc86a407994051b0c8d235b0632793b1a84f6a5

Aliases

arxiv: 1803.01808 · arxiv_version: 1803.01808v2 · doi: 10.48550/arxiv.1803.01808 · pith_short_12: 3HMBOPQDNRDX · pith_short_16: 3HMBOPQDNRDXQA5G · pith_short_8: 3HMBOPQD

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/3HMBOPQDNRDXQA5GJS6EXSDKIB \
  | 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: d9d8173e036c477803a64cbc4bc86a407994051b0c8d235b0632793b1a84f6a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "559e11ddc0e1ad1048fbbedb1b4d14b805ddcabf2b120dcc8be1b6bdea2388d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-05T18:05:04Z",
    "title_canon_sha256": "270b7266c8118b0e183ce7e35af739335a29bc4ec7baba0ba707c3e5e3701565"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01808",
    "kind": "arxiv",
    "version": 2
  }
}