Pith Number

pith:IING6YMG

pith:2009:IING6YMG63JDL33QKXB5GL6IFO

not attested not anchored not stored refs pending

Chemical Evolution in Hierarchical Models of Cosmic Structure II: The Formation of the Milky Way Stellar Halo and the Distribution of the Oldest Stars

Jason Tumlinson (STScI)

arxiv:0911.1786 v1 · 2009-11-09 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IING6YMG63JDL33QKXB5GL6IFO}

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	2026-05-18T02:34:11.486620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

421a6f6186f6d235ef7055c3d32fc82b9741e7712819c547db6ac2a6f69f49a4

Aliases

arxiv: 0911.1786 · arxiv_version: 0911.1786v1 · doi: 10.48550/arxiv.0911.1786 · pith_short_12: IING6YMG63JD · pith_short_16: IING6YMG63JDL33Q · pith_short_8: IING6YMG

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/IING6YMG63JDL33QKXB5GL6IFO \
  | 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: 421a6f6186f6d235ef7055c3d32fc82b9741e7712819c547db6ac2a6f69f49a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e13559030b15ddf7b7ad9a0df34e9241e6ed34af72f0f1ad0dc13181392d63b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-11-09T21:39:56Z",
    "title_canon_sha256": "8cb123f56321cb1c35c0b217fc6748793dc01e581761c8b0830c6c9d6beafaa2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1786",
    "kind": "arxiv",
    "version": 1
  }
}