pith. sign in
Pith Number

pith:5B5NOEJ5

pith:2010:5B5NOEJ5YR3EXYGNMWGDKGGN3N
not attested not anchored not stored refs pending

Proto-Planetary Nebula with the Spitzer Space Telescope

Alexa Hart, Corrado Trigilio, Grazia Umana, Joe Hora, Luciano Cerrigone, Martin Cohen, Massimo Marengo

arxiv:1009.2979 v1 · 2010-09-15 · astro-ph.SR

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{5B5NOEJ5YR3EXYGNMWGDKGGN3N}

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 2026-05-18T04:40:55.111284Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

e87ad7113dc4764be0cd658c3518cddb6b7b21345b515a4e67dac8e4083bd93d

Aliases

arxiv: 1009.2979 · arxiv_version: 1009.2979v1 · doi: 10.48550/arxiv.1009.2979 · pith_short_12: 5B5NOEJ5YR3E · pith_short_16: 5B5NOEJ5YR3EXYGN · pith_short_8: 5B5NOEJ5
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/5B5NOEJ5YR3EXYGNMWGDKGGN3N \
  | 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: e87ad7113dc4764be0cd658c3518cddb6b7b21345b515a4e67dac8e4083bd93d
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "5f6a7a5e059c65a453bde6cd9ce9ea9edc7a35245556a7c7436c5f6fe0c4743d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-09-15T18:00:25Z",
    "title_canon_sha256": "f75b9649cc6c9b9372bfb0ef61ded1958accee6af07253b5f3aa511a346f3a13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2979",
    "kind": "arxiv",
    "version": 1
  }
}