Pith Number

pith:ABPRYZDD

pith:2019:ABPRYZDDIYTMTQXFXMEVFHNQZ5

not attested not anchored not stored refs pending

A high resolution mid-infrared survey of water emission from protoplanetary disks

Colette Salyk, Geoffrey A. Blake, Joan R. Najita, John Lacy, John S. Carr, Ke Zhang, Klaus Pontoppidan, Matt Richter

arxiv:1902.02708 v1 · 2019-02-07 · astro-ph.SR · 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{ABPRYZDDIYTMTQXFXMEVFHNQZ5}

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	2026-05-17T23:50:08.228010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

005f1c64634626c9c2e5bb09529db0cf663ff32f1e56be5ac3f12ba8e0be8488

Aliases

arxiv: 1902.02708 · arxiv_version: 1902.02708v1 · doi: 10.48550/arxiv.1902.02708 · pith_short_12: ABPRYZDDIYTM · pith_short_16: ABPRYZDDIYTMTQXF · pith_short_8: ABPRYZDD

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/ABPRYZDDIYTMTQXFXMEVFHNQZ5 \
  | 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: 005f1c64634626c9c2e5bb09529db0cf663ff32f1e56be5ac3f12ba8e0be8488

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55bd52692030264506a265430e4a6e29fc44ffae6b272716bd893126bc394333",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-07T16:12:10Z",
    "title_canon_sha256": "b7ea80cb6964cbeb7747f12b8ea180498e827784775e363c0dba3f379db1a2d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02708",
    "kind": "arxiv",
    "version": 1
  }
}