Pith Number

pith:D7HFSGND

pith:2009:D7HFSGNDS7CCWEF3KGNXJPFS4S

not attested not anchored not stored refs pending

The physical conditions in Gomez's Hamburger (IRAS 18059-3211), a pre-MS rotating disk

A. Castro-Carrizo, K. Young, V. Bujarrabal

arxiv:0901.4256 v1 · 2009-01-27 · 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{D7HFSGNDS7CCWEF3KGNXJPFS4S}

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	2026-05-18T02:14:55.664836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fce5919a397c42b10bb519b74bcb2e48b6d4a328a47949acc919ed318d742ff

Aliases

arxiv: 0901.4256 · arxiv_version: 0901.4256v1 · doi: 10.48550/arxiv.0901.4256 · pith_short_12: D7HFSGNDS7CC · pith_short_16: D7HFSGNDS7CCWEF3 · pith_short_8: D7HFSGND

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/D7HFSGNDS7CCWEF3KGNXJPFS4S \
  | 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: 1fce5919a397c42b10bb519b74bcb2e48b6d4a328a47949acc919ed318d742ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59b200a43c8ae49b8a28bffa3ee21f6d81e65b645de06d4d38e595b7d2e8fbc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-27T14:17:14Z",
    "title_canon_sha256": "13fc91ac8aaee76f2738ff2fc48432ecf70182ddaff326d42165f2d4cee1d0b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4256",
    "kind": "arxiv",
    "version": 1
  }
}