Pith Number

pith:Y3ZU3QF6

pith:2016:Y3ZU3QF63MWPFEVUQCYEXF7ZUO

not attested not anchored not stored refs pending

Crater 2: An Extremely Cold Dark Matter Halo

Alex Geringer-Sameth (CMU), Christian I. Johnson (CfA), Edward W. Olszewski (UA), Gabriel Torrealba (IoA), Mario Mateo (UM), Matthew G. Walker (CMU), Nelson Caldwell (CfA), Sergey Koposov (IoA), Vasily Belokurov (IoA)

arxiv:1612.06398 v1 · 2016-12-19 · 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{Y3ZU3QF63MWPFEVUQCYEXF7ZUO}

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	2026-05-18T00:46:13.427672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6f34dc0bedb2cf292b480b04b97f9a3b8e6f9d70c48425c9a6f752fddb701cc

Aliases

arxiv: 1612.06398 · arxiv_version: 1612.06398v1 · doi: 10.48550/arxiv.1612.06398 · pith_short_12: Y3ZU3QF63MWP · pith_short_16: Y3ZU3QF63MWPFEVU · pith_short_8: Y3ZU3QF6

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/Y3ZU3QF63MWPFEVUQCYEXF7ZUO \
  | 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: c6f34dc0bedb2cf292b480b04b97f9a3b8e6f9d70c48425c9a6f752fddb701cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef22ddec875fa3b08da0acbdcd25e6d8b5ab0c5236cd8a9bde2d0ca704f96a44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-19T21:00:04Z",
    "title_canon_sha256": "684c4087f87b1e1fee1f5120449d9e3f271fce21bdf105d02b35bccb4c12fcaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.06398",
    "kind": "arxiv",
    "version": 1
  }
}