Pith Number

pith:UDSPQKFD

pith:2007:UDSPQKFDJN37KGBZHVTQKW2HFJ

not attested not anchored not stored refs pending

Deep Spitzer spectroscopy of the `Flying Saucer' edge-on disk: Large grains beyond 50 AU

Cornelis P. Dullemond, Ewine F. van Dishoeck, Geoffrey A. Blake, Karl R. Stapelfeldt, Klaus M. Pontoppidan

arxiv:astro-ph/0702394 v1 · 2007-02-14 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UDSPQKFDJN37KGBZHVTQKW2HFJ}

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

JWST Edge-on Disk Ice (JEDIce): Vibrationally hot, rotationally cold H$_2$ in the outer disk of Oph 163131 non-thermally excited by UV and cosmic rays

Receipt and verification

First computed	2026-07-04T17:07:39.637795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0e4f828a34b77f518393d67055b472a4ac2cc5c757ca6f6e181abd276ac183d

Aliases

arxiv: astro-ph/0702394 · arxiv_version: astro-ph/0702394v1 · doi: 10.48550/arxiv.astro-ph/0702394 · pith_short_12: UDSPQKFDJN37 · pith_short_16: UDSPQKFDJN37KGBZ · pith_short_8: UDSPQKFD

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/UDSPQKFDJN37KGBZHVTQKW2HFJ \
  | 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: a0e4f828a34b77f518393d67055b472a4ac2cc5c757ca6f6e181abd276ac183d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55ae811c60f00c6d532298d8cb40b772e88dca341067da7b7b3428c9e10eacd3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-14T21:58:36Z",
    "title_canon_sha256": "25637d81e764a64a7a3650fe5bcc1e19819437749a16fabd2980d85c8a59857d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702394",
    "kind": "arxiv",
    "version": 1
  }
}