Pith Number

pith:5O777ATP

pith:2013:5O777ATPB775PK6OR3KG3TW6E2

not attested not anchored not stored refs pending

The Dark Side of Galaxy Color

Andrew P. Hearin (Fermilab), Douglas F. Watson (KICP/U.Chicago)

arxiv:1304.5557 v2 · 2013-04-19 · 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{5O777ATPB775PK6OR3KG3TW6E2}

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	2026-05-18T01:50:24.214951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebbfff826f0fffd7abce8ed46dcede26b120e620792509e40c6123d5ec8fe82f

Aliases

arxiv: 1304.5557 · arxiv_version: 1304.5557v2 · doi: 10.48550/arxiv.1304.5557 · pith_short_12: 5O777ATPB775 · pith_short_16: 5O777ATPB775PK6O · pith_short_8: 5O777ATP

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/5O777ATPB775PK6OR3KG3TW6E2 \
  | 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: ebbfff826f0fffd7abce8ed46dcede26b120e620792509e40c6123d5ec8fe82f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f02bc7985a6de7d34afb6b12cb8f1aa86a53c47d0a56ce962864c54132400c30",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-19T22:21:24Z",
    "title_canon_sha256": "06a5b8f564215cfb4a0661fc4149095a01c3229b385b6edff98094b6e994888f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5557",
    "kind": "arxiv",
    "version": 2
  }
}