Pith Number

pith:LU3LY7DT

pith:2011:LU3LY7DTIQPQDGM4422Y2GOTBN

not attested not anchored not stored refs pending

The Spitzer ice legacy: Ice evolution from cores to protostars

A. C. Adwin Boogert, Ewine F. van Dishoeck, Geoffrey A. Blake, Karin I. Oberg, Klaus M. Pontoppidan, Neal J. Evans II, Sandrine Bottinelli, Saskia van den Broek

arxiv:1107.5825 v1 · 2011-07-28 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LU3LY7DTIQPQDGM4422Y2GOTBN}

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	2026-05-18T02:01:06.103639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d36bc7c73441f01999ce6b58d19d30b4c0de6718c3885a0e27e2ae9b194c58b

Aliases

arxiv: 1107.5825 · arxiv_version: 1107.5825v1 · doi: 10.48550/arxiv.1107.5825 · pith_short_12: LU3LY7DTIQPQ · pith_short_16: LU3LY7DTIQPQDGM4 · pith_short_8: LU3LY7DT

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/LU3LY7DTIQPQDGM4422Y2GOTBN \
  | 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: 5d36bc7c73441f01999ce6b58d19d30b4c0de6718c3885a0e27e2ae9b194c58b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c80a1862f351d46b01bc423873fcd18ccc109da396d564cf1d40df7503f6e164",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-07-28T20:33:44Z",
    "title_canon_sha256": "772b2dbec2e871eeaead71f163368d6a38d88646e2f27235ecf4c526138cafd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5825",
    "kind": "arxiv",
    "version": 1
  }
}