Pith Number

pith:FWM6XJ3O

pith:2010:FWM6XJ3OGYVVGKB2FX3HIMW3U6

not attested not anchored not stored refs pending

Observation of light echoes around very young stars

B.E.K. Sugerman, I. de la Cueva, J.L. Ortiz, M. Melita, N. Morales, P. Santos-Sanz, R. Duffard, R. Gil-Hutton

arxiv:1007.2556 v2 · 2010-07-14 · 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{FWM6XJ3OGYVVGKB2FX3HIMW3U6}

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	2026-05-18T02:06:21.659448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d99eba76e362b53283a2df67432dba78492c17e487e968073d56dd10bef03a5

Aliases

arxiv: 1007.2556 · arxiv_version: 1007.2556v2 · doi: 10.48550/arxiv.1007.2556 · pith_short_12: FWM6XJ3OGYVV · pith_short_16: FWM6XJ3OGYVVGKB2 · pith_short_8: FWM6XJ3O

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/FWM6XJ3OGYVVGKB2FX3HIMW3U6 \
  | 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: 2d99eba76e362b53283a2df67432dba78492c17e487e968073d56dd10bef03a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f3ceada13a0e79a67b9a4a7de63279a60951926ec9de55b68e13445ce3b7681",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-07-14T09:39:30Z",
    "title_canon_sha256": "07b76c536dd01f398a371cc95c16f34fb8283f8078bbce248fdf5f0921b68880"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2556",
    "kind": "arxiv",
    "version": 2
  }
}