Pith Number

pith:IKUN5MHW

pith:2016:IKUN5MHWLBAS74ZY7HUB2P7WC5

not attested not anchored not stored refs pending

The Radial Distribution of H2 and CO in TW Hya as Revealed by Resolved ALMA Observations of CO Isotopologues

((1) University of Michigan, (2) Harvard-Smithsonian Center for Astrophysics, (3) California Institute of Technology, (4) Leiden Observatory, 5), (5) Max-Planck-Institut fur Extraterrestrische Physik), Chunhua Qi (2), Edwin A. Bergin (1), Ewine F. van Dishoeck (4, Geoffrey A. Blake (3), Kamber R. Schwarz (1), Karin I. \"Oberg (2), Ke Zhang (1), L. Ilsedore Cleeves (2)

arxiv:1603.08520 v1 · 2016-03-28 · astro-ph.SR · astro-ph.EP · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IKUN5MHWLBAS74ZY7HUB2P7WC5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:13:11.347106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42a8deb0f658412ff338f9e81d3ff6176e834429dbaaa969e6d3504a0cecaf9c

Aliases

arxiv: 1603.08520 · arxiv_version: 1603.08520v1 · doi: 10.48550/arxiv.1603.08520 · pith_short_12: IKUN5MHWLBAS · pith_short_16: IKUN5MHWLBAS74ZY · pith_short_8: IKUN5MHW

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/IKUN5MHWLBAS74ZY7HUB2P7WC5 \
  | 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: 42a8deb0f658412ff338f9e81d3ff6176e834429dbaaa969e6d3504a0cecaf9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0a061cefaa5273bf563418f091d67e3d7d0844a2fc5a4a2ab4f88aaf9998389",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-03-28T20:00:00Z",
    "title_canon_sha256": "75ecd6655cdeb07f2c4bd528b780b95a1b4135bdcad1fc0aacd03915a11c2f82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.08520",
    "kind": "arxiv",
    "version": 1
  }
}