Pith Number

pith:7UEC6AOA

pith:2021:7UEC6AOAFAZZLMSCXMJA5J3AHD

not attested not anchored not stored refs pending

Collision Between Molecular Clouds-III: The effects of cloud initial density profile on head-on collisions

James E Dale, Tabassum S Tanvir

arxiv:2105.04710 v1 · 2021-05-10 · 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{7UEC6AOAFAZZLMSCXMJA5J3AHD}

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	2026-07-05T02:57:20.600323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd082f01c0283395b242bb120ea76038e0ee1b2249c0f9b661880bebfd639e59

Aliases

arxiv: 2105.04710 · arxiv_version: 2105.04710v1 · doi: 10.48550/arxiv.2105.04710 · pith_short_12: 7UEC6AOAFAZZ · pith_short_16: 7UEC6AOAFAZZLMSC · pith_short_8: 7UEC6AOA

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/7UEC6AOAFAZZLMSCXMJA5J3AHD \
  | 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: fd082f01c0283395b242bb120ea76038e0ee1b2249c0f9b661880bebfd639e59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2634bb4b8de8e777ae3e0f9b9a82d2223bab9b5f5913f427437dc59fea39acf8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-05-10T23:43:30Z",
    "title_canon_sha256": "7701bfe1f29a3140a45961f594b47873d0627d639861ca80c6f786d993cff1ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04710",
    "kind": "arxiv",
    "version": 1
  }
}