Pith Number

pith:7RYRVNB7

pith:2013:7RYRVNB73XRCQ4JLJOD4NBWIPX

not attested not anchored not stored refs pending

AA Tau's sudden and long-lasting deepening: enhanced extinction by its circumstellar disk

David Barrado, Herve Bouy, Jerome Bouvier, Konstantin Grankin, Lucas Ellerbroek

arxiv:1304.1487 v2 · 2013-04-04 · 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{7RYRVNB73XRCQ4JLJOD4NBWIPX}

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.

Cited by

1 paper in Pith

The Accretion Process on Protostars

Receipt and verification

First computed	2026-05-18T01:50:42.779011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc711ab43fdde228712b4b87c686c87df54e002d433ad53db0c93f1d51741e93

Aliases

arxiv: 1304.1487 · arxiv_version: 1304.1487v2 · doi: 10.48550/arxiv.1304.1487 · pith_short_12: 7RYRVNB73XRC · pith_short_16: 7RYRVNB73XRCQ4JL · pith_short_8: 7RYRVNB7

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/7RYRVNB73XRCQ4JLJOD4NBWIPX \
  | 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: fc711ab43fdde228712b4b87c686c87df54e002d433ad53db0c93f1d51741e93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72b4a13af4b9ac299841ed416df1369af2b9ee32ef962b5e6e0e9057686ac65e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-04-04T19:53:49Z",
    "title_canon_sha256": "6e5dfab0145b2286bdff2e68d3ec44ab2ee9c36940a074a72624c12f87f1562b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1487",
    "kind": "arxiv",
    "version": 2
  }
}