Pith Number

pith:MDHWEQ63

pith:2012:MDHWEQ637LW4AEQSNVAYGF2HMA

not attested not anchored not stored refs pending

IRAS 20050+2720: Anatomy of a young stellar cluster

B. Spitzbart, H. M. Guenther, J. Forbrich, J. L. Pipher, L. Allen, N. J. Wright, R. A. Gutermuth, S. J. Wolk, S. T. Megeath, T. L. Bourke

arxiv:1208.0780 v1 · 2012-08-03 · astro-ph.SR · 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{MDHWEQ637LW4AEQSNVAYGF2HMA}

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	2026-05-18T01:55:23.288715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60cf6243dbfaedc012126d418317476023bd286a002a232a646ba5075f7bcb46

Aliases

arxiv: 1208.0780 · arxiv_version: 1208.0780v1 · doi: 10.48550/arxiv.1208.0780 · pith_short_12: MDHWEQ637LW4 · pith_short_16: MDHWEQ637LW4AEQS · pith_short_8: MDHWEQ63

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/MDHWEQ637LW4AEQSNVAYGF2HMA \
  | 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: 60cf6243dbfaedc012126d418317476023bd286a002a232a646ba5075f7bcb46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae1c68f208654f2c974d4a446832d191fdbb7065eca1a4d398bd161fbba4973c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-08-03T15:58:28Z",
    "title_canon_sha256": "de4afbea193b4fb0a8326b35fd396a60341c6008cdbc575aa026f6168a75e724"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0780",
    "kind": "arxiv",
    "version": 1
  }
}