Pith Number

pith:3TBR6ENS

pith:2015:3TBR6ENS77W4RZLTF2I2TLISTL

not attested not anchored not stored refs pending

Near-Field Cosmology with Metal-Poor Stars

Anna Frebel (MIT), John E. Norris (ANU)

arxiv:1501.06921 v1 · 2015-01-27 · astro-ph.SR · 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{3TBR6ENS77W4RZLTF2I2TLISTL}

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	2026-05-18T01:32:30.284975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcc31f11b2ffedc8e5732e91a9ad129afa98c9d73b535ae6a29657dfc6fa7823

Aliases

arxiv: 1501.06921 · arxiv_version: 1501.06921v1 · doi: 10.48550/arxiv.1501.06921 · pith_short_12: 3TBR6ENS77W4 · pith_short_16: 3TBR6ENS77W4RZLT · pith_short_8: 3TBR6ENS

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/3TBR6ENS77W4RZLTF2I2TLISTL \
  | 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: dcc31f11b2ffedc8e5732e91a9ad129afa98c9d73b535ae6a29657dfc6fa7823

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b8ba94e1380a64a812c7ffeed70de190427429270cdbd80421c92122f00653a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-01-27T21:00:58Z",
    "title_canon_sha256": "2ae67c9e50389d6d5ed76e9ad81b04080b959b0bf28f8d9fb503718fbe9940da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06921",
    "kind": "arxiv",
    "version": 1
  }
}