Pith Number

pith:C3PLDHX6

pith:2021:C3PLDHX6ZO2TMR47XP7MXYM5HJ

not attested not anchored not stored refs pending

A lack of constraints on the cold opaque HI mass: HI spectra in M31 and M33 prefer multi-component models over a single cold opaque component

Adam K. Leroy, Amanda A. Kepley, Andreas Schruba, Dyas Utomo, Eric W. Koch, Erik W. Rosolowsky, I-Da Chiang, Jeremy Chastenet, Julianne Dalcanton, Karin M. Sandstrom, Snezana Stanimirovic, Thomas G. Williams

arxiv:2104.02678 v1 · 2021-04-06 · 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{C3PLDHX6ZO2TMR47XP7MXYM5HJ}

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	2026-07-05T02:33:32.603841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16deb19efecbb536479fbbfecbe19d3a7f247756d89858ff7a41dbe9771e7f7a

Aliases

arxiv: 2104.02678 · arxiv_version: 2104.02678v1 · doi: 10.48550/arxiv.2104.02678 · pith_short_12: C3PLDHX6ZO2T · pith_short_16: C3PLDHX6ZO2TMR47 · pith_short_8: C3PLDHX6

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/C3PLDHX6ZO2TMR47XP7MXYM5HJ \
  | 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: 16deb19efecbb536479fbbfecbe19d3a7f247756d89858ff7a41dbe9771e7f7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dff5148d0d8caa4690c69177bc56334484e81bf26f2d49355a5050dd82b84c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-06T17:13:43Z",
    "title_canon_sha256": "536b55ee5d5d54bd937bdc79c06fc704287e2ac066589736c664a81236e27c4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.02678",
    "kind": "arxiv",
    "version": 1
  }
}