Pith Number

pith:SUFJKSW5

pith:2013:SUFJKSW5SWEIO7JHZIWF46BQ62

not attested not anchored not stored refs pending

Bullet Retarding Forces in Ballistic Gelatin by Analysis of High Speed Video

Amy Courtney, Michael Courtney, Robert Blair, Steven Gaylord

arxiv:1305.5215 v1 · 2013-05-22 · physics.med-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{SUFJKSW5SWEIO7JHZIWF46BQ62}

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	2026-05-18T03:25:06.519377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

950a954add9588877d27ca2c5e7830f6a105c6e2395a981c7e6d4cbbb9c100bd

Aliases

arxiv: 1305.5215 · arxiv_version: 1305.5215v1 · doi: 10.48550/arxiv.1305.5215 · pith_short_12: SUFJKSW5SWEI · pith_short_16: SUFJKSW5SWEIO7JH · pith_short_8: SUFJKSW5

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/SUFJKSW5SWEIO7JHZIWF46BQ62 \
  | 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: 950a954add9588877d27ca2c5e7830f6a105c6e2395a981c7e6d4cbbb9c100bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8178ad264e05a2978840c002daf3d859b41e58d0f14a8d90cc2a943845f95ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2013-05-22T18:01:49Z",
    "title_canon_sha256": "ba8b21306cc5d35bd25743f5546d1922c69d2cc194ea69178f12c86d6cb9db07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.5215",
    "kind": "arxiv",
    "version": 1
  }
}