Pith Number

pith:W6ZA2R4N

pith:2013:W6ZA2R4NJTXLXV2IU5J2WBU5XD

not attested not anchored not stored refs pending

ALMA observations of the molecular gas in the debris disk of the 30 Myr old star HD 21997

A. Juh\'asz, \'A. K\'osp\'al, A. M. Hughes, A. Mo\'or, C. A. Grady, Cs. Kiss, D. Apai, I. Pascucci, M. Schmalzl, P. \'Abrah\'am, T. Csengeri, Th. Henning

arxiv:1310.5068 v1 · 2013-10-18 · 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{W6ZA2R4NJTXLXV2IU5J2WBU5XD}

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	2026-05-18T01:46:57.821388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7b20d478d4ceebbd748a753ab069db8fc483cff48b9026f20b9e9b2c200d9a6

Aliases

arxiv: 1310.5068 · arxiv_version: 1310.5068v1 · doi: 10.48550/arxiv.1310.5068 · pith_short_12: W6ZA2R4NJTXL · pith_short_16: W6ZA2R4NJTXLXV2I · pith_short_8: W6ZA2R4N

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/W6ZA2R4NJTXLXV2IU5J2WBU5XD \
  | 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: b7b20d478d4ceebbd748a753ab069db8fc483cff48b9026f20b9e9b2c200d9a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c1a6b8cf40ee94054bdfee3e62164731d8bb6a68d4e5bc2cd0394dc8f20ff48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-10-18T16:00:58Z",
    "title_canon_sha256": "7edae5d41dcd36964849cfc97c3552a6464f6d1d639348aef61fe11b1fc1392d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.5068",
    "kind": "arxiv",
    "version": 1
  }
}