Pith Number

pith:TYAKLSFG

pith:2009:TYAKLSFGP4GTBZEZU2NYF3JK2R

not attested not anchored not stored refs pending

Dense cores in the Pipe Nebula: An improved core mass function

A. A. Muench, C. J. Lada, J. F. Alves, J. Kainulainen, J. M. Rathborne, M. Lombardi

arxiv:0904.4169 v1 · 2009-04-27 · 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{TYAKLSFGP4GTBZEZU2NYF3JK2R}

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	2026-05-18T04:29:43.318355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e00a5c8a67f0d30e499a69b82ed2ad450a753b4f417037aebb075d31cb19b5f

Aliases

arxiv: 0904.4169 · arxiv_version: 0904.4169v1 · doi: 10.48550/arxiv.0904.4169 · pith_short_12: TYAKLSFGP4GT · pith_short_16: TYAKLSFGP4GTBZEZ · pith_short_8: TYAKLSFG

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/TYAKLSFGP4GTBZEZU2NYF3JK2R \
  | 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: 9e00a5c8a67f0d30e499a69b82ed2ad450a753b4f417037aebb075d31cb19b5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cfacfb3bc00ec1b970eda96cc42608a147f7a6c70aef29d27e022d7019d6b0d",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-04-27T14:27:37Z",
    "title_canon_sha256": "f66994008011a2a966d19ab96e1a2bbee68a627aa7fa53d5a176182620ebb5f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4169",
    "kind": "arxiv",
    "version": 1
  }
}