Pith Number

pith:45BC3FAK

pith:2021:45BC3FAKHELEX7Q4ZTD2QC6T53

not attested not anchored not stored refs pending

Evolution of dust porosity through coagulation and shattering in the interstellar medium

Charl\`ene Lef\`evre, Hiroyuki Hirashita, Laurent Pagani, Vladimir B. Il'in

arxiv:2101.02365 v1 · 2021-01-07 · 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{45BC3FAKHELEX7Q4ZTD2QC6T53}

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	2026-07-05T02:06:21.797533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7422d940a39164bfe1cccc7a80bd3eedaafbb1177f0bd1f3636d6dfead4c678

Aliases

arxiv: 2101.02365 · arxiv_version: 2101.02365v1 · doi: 10.48550/arxiv.2101.02365 · pith_short_12: 45BC3FAKHELE · pith_short_16: 45BC3FAKHELEX7Q4 · pith_short_8: 45BC3FAK

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/45BC3FAKHELEX7Q4ZTD2QC6T53 \
  | 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: e7422d940a39164bfe1cccc7a80bd3eedaafbb1177f0bd1f3636d6dfead4c678

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db1499ec08f65b6d6a385793a909fcd9b5efb42d2724484a83ff8d77e101d220",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-01-07T04:54:29Z",
    "title_canon_sha256": "41c17458f43a7ff7853b7c8a98b45b4ce4bf6a015caa1edd9f567c33f3b6adf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.02365",
    "kind": "arxiv",
    "version": 1
  }
}