Pith Number

pith:UFSVYYGE

pith:2009:UFSVYYGEDAYHWSPBPQZDLT4CUQ

not attested not anchored not stored refs pending

C2D Spitzer-IRS spectra of disks around T Tauri stars. IV. Crystalline silicates

A. C. A. Boogert, B. Merin, C. Knez, C. P. Dullemond, E. F. van Dishoeck, F. Lahuis, G. A. Blake, I. Oliveira, J.-C. Augereau, J. Kessler-Silacci, J.-L. Monin, J. M. Brown, J. Olofsson, K. Pontoppidan, N. J. Evans II, V. Geers

arxiv:0908.4153 v1 · 2009-08-28 · 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{UFSVYYGEDAYHWSPBPQZDLT4CUQ}

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	2026-05-18T02:12:21.671269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1655c60c418307b49e17c3235cf82a41e705175c5b08aaaa62c6f48c7017baa

Aliases

arxiv: 0908.4153 · arxiv_version: 0908.4153v1 · doi: 10.48550/arxiv.0908.4153 · pith_short_12: UFSVYYGEDAYH · pith_short_16: UFSVYYGEDAYHWSPB · pith_short_8: UFSVYYGE

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/UFSVYYGEDAYHWSPBPQZDLT4CUQ \
  | 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: a1655c60c418307b49e17c3235cf82a41e705175c5b08aaaa62c6f48c7017baa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1daac3e775f7b67962a4da3019e9a4146290f69d79033d0aee00413bdb5ec0c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-08-28T08:33:20Z",
    "title_canon_sha256": "3e464a0819bd548c7601a1ce7baff4fd3953aad2d90c5774719076a7a5e28c7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.4153",
    "kind": "arxiv",
    "version": 1
  }
}