Pith Number

pith:IAGQEYX6

pith:2010:IAGQEYX6R7LK6O46ZZ57MNS7MM

not attested not anchored not stored refs pending

Evidence for granulation in early A-type stars

Jaymie M. Matthews, Thomas Kallinger

arxiv:1001.4879 v1 · 2010-01-27 · 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{IAGQEYX6R7LK6O46ZZ57MNS7MM}

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	2026-05-18T02:09:29.362583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

400d0262fe8fd6af3b9ece7bf6365f633c589ea481e2f7a491d35311338451aa

Aliases

arxiv: 1001.4879 · arxiv_version: 1001.4879v1 · doi: 10.48550/arxiv.1001.4879 · pith_short_12: IAGQEYX6R7LK · pith_short_16: IAGQEYX6R7LK6O46 · pith_short_8: IAGQEYX6

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/IAGQEYX6R7LK6O46ZZ57MNS7MM \
  | 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: 400d0262fe8fd6af3b9ece7bf6365f633c589ea481e2f7a491d35311338451aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64719d25943e3c14636c3bde94318f4d81c075b626fc6be4ed80dce875adf0de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-01-27T09:27:09Z",
    "title_canon_sha256": "414cf64aa8976f8b28778e92ce14e2b991bb3eed5997602a0115cd396ede33b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4879",
    "kind": "arxiv",
    "version": 1
  }
}