Pith Number

pith:FPYZ4OS6

pith:2017:FPYZ4OS6ORH6Y6AYV2LLPYYNZB

not attested not anchored not stored refs pending

Comparing Models for IMF Variation Across Cosmological Time in Milky Way-like Galaxies

David Guszejnov, Philip F. Hopkins, Xiangcheng Ma

arxiv:1702.04431 v3 · 2017-02-15 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPYZ4OS6ORH6Y6AYV2LLPYYNZB}

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	2026-05-18T00:17:44.058589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bf19e3a5e744fec7818ae96b7e30dc865a9137d0d0fe908fa5e6819ddb344e3

Aliases

arxiv: 1702.04431 · arxiv_version: 1702.04431v3 · doi: 10.48550/arxiv.1702.04431 · pith_short_12: FPYZ4OS6ORH6 · pith_short_16: FPYZ4OS6ORH6Y6AY · pith_short_8: FPYZ4OS6

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/FPYZ4OS6ORH6Y6AYV2LLPYYNZB \
  | 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: 2bf19e3a5e744fec7818ae96b7e30dc865a9137d0d0fe908fa5e6819ddb344e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e75f6c1e8d1b5514417c0d44ebff7585f52ebfa5c37791f2c35324419aa6974",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-02-15T00:37:24Z",
    "title_canon_sha256": "20122a34c125d7fab272de211d9f6cb7474edec7976b3b3a45e0d6ae7d5aa625"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04431",
    "kind": "arxiv",
    "version": 3
  }
}