Pith Number

pith:PL45EPAE

pith:2021:PL45EPAEPMFEF3OAJX2CC6JKRD

not attested not anchored not stored refs pending

A gravity-independent powder-based additive manufacturing process tailored for space applications

Andreas Meyer, Andrew Barnes, Felix Kuthe, Joe M. Bennett, Martina Meisnar, Olfa D'Angelo, Raphael Wiedey, Szu-Jia Liu, Thomas Voigtmann, W. Till Kranz

arxiv:2102.09815 v2 · 2021-02-19 · cond-mat.mtrl-sci · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PL45EPAEPMFEF3OAJX2CC6JKRD}

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	2026-07-05T03:20:54.560153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7af9d23c047b0a42edc04df421792a88cb6c92d56cab87ec75a388904eea1efd

Aliases

arxiv: 2102.09815 · arxiv_version: 2102.09815v2 · doi: 10.48550/arxiv.2102.09815 · pith_short_12: PL45EPAEPMFE · pith_short_16: PL45EPAEPMFEF3OA · pith_short_8: PL45EPAE

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/PL45EPAEPMFEF3OAJX2CC6JKRD \
  | 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: 7af9d23c047b0a42edc04df421792a88cb6c92d56cab87ec75a388904eea1efd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26b170a25afebc2d79b7de23bd90f69ec3425d8a829890b199945593373a97f4",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2021-02-19T09:08:02Z",
    "title_canon_sha256": "bf254477d1287dc0cdf7e2fb451ee8911bcc82436ec9f3f0c3186c72e97b465b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.09815",
    "kind": "arxiv",
    "version": 2
  }
}