Pith Number

pith:PI3JBNYF

pith:2012:PI3JBNYF7RQXGUQYE2FJAY6ALK

not attested not anchored not stored refs pending

The 3-Dimensional Structure of NGC 891 and M51

Andrew Schechtman-Rook, Kenneth Wood, Matthew A. Bershady, Thomas P. Robitaille

arxiv:1203.0023 v1 · 2012-02-29 · 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{PI3JBNYF7RQXGUQYE2FJAY6ALK}

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	2026-05-18T01:58:18.096098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a3690b705fc61735218268a9063c05ab1eb79af3e412d71c893bcffc058ed9b

Aliases

arxiv: 1203.0023 · arxiv_version: 1203.0023v1 · doi: 10.48550/arxiv.1203.0023 · pith_short_12: PI3JBNYF7RQX · pith_short_16: PI3JBNYF7RQXGUQY · pith_short_8: PI3JBNYF

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/PI3JBNYF7RQXGUQYE2FJAY6ALK \
  | 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: 7a3690b705fc61735218268a9063c05ab1eb79af3e412d71c893bcffc058ed9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f0cb25b38b15df2a9e59c3a5b953adc86cb0aa171234a0b8d80837dd4e94e02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-29T21:37:01Z",
    "title_canon_sha256": "67a78eeb48b7654f6232a0e4d6a650965cbad7594ab2148c13d428f1ac80a12f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0023",
    "kind": "arxiv",
    "version": 1
  }
}