Pith Number

pith:C2CNBPAI

pith:2015:C2CNBPAI4SGEG75WBXALVRB3NM

not attested not anchored not stored refs pending

The initial mass functions of M31 and M32 through far red stellar absorption features

Niranjan Thatte, Roger L. Davies, Ryan C. W. Houghton, Simon Zieleniewski

arxiv:1506.02654 v2 · 2015-06-08 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C2CNBPAI4SGEG75WBXALVRB3NM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:36:52.966105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1684d0bc08e48c437fb60dc0bac43b6b150dd7482705702c966e7b1e5d264eec

Aliases

arxiv: 1506.02654 · arxiv_version: 1506.02654v2 · doi: 10.48550/arxiv.1506.02654 · pith_short_12: C2CNBPAI4SGE · pith_short_16: C2CNBPAI4SGEG75W · pith_short_8: C2CNBPAI

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/C2CNBPAI4SGEG75WBXALVRB3NM \
  | 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: 1684d0bc08e48c437fb60dc0bac43b6b150dd7482705702c966e7b1e5d264eec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "132c23e6c1762dd9cefba4c33bdd3b5912add61940ea339b44e7659357177243",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-06-08T20:00:21Z",
    "title_canon_sha256": "98c7e65400ae3727e3d4395918c594b27c44240aba2d5be1add1a5edc0adaf37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02654",
    "kind": "arxiv",
    "version": 2
  }
}