Pith Number

pith:YT5AB4XF

pith:2012:YT5AB4XFACWFDVUJHFMSDBFEU2

not attested not anchored not stored refs pending

The point of departure of a particle sliding on a curved surface

Amir Aghamohammadi

arxiv:1206.3449 v1 · 2012-06-15 · physics.class-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{YT5AB4XFACWFDVUJHFMSDBFEU2}

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	2026-05-18T03:52:14.605948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4fa00f2e500ac51d68939592184a4a6b183a9237c39199685ccb02d1272e938

Aliases

arxiv: 1206.3449 · arxiv_version: 1206.3449v1 · doi: 10.48550/arxiv.1206.3449 · pith_short_12: YT5AB4XFACWF · pith_short_16: YT5AB4XFACWFDVUJ · pith_short_8: YT5AB4XF

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/YT5AB4XFACWFDVUJHFMSDBFEU2 \
  | 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: c4fa00f2e500ac51d68939592184a4a6b183a9237c39199685ccb02d1272e938

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d51af777f91c0da25dff3216d1a31451f8a78571d72d159bfd9c1f40a9ca22a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2012-06-15T12:59:49Z",
    "title_canon_sha256": "80f4e7d61bbd8779f0d7ca4cc9dd06a5f1999a7675b5e591e3e2d01c7afd3bd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.3449",
    "kind": "arxiv",
    "version": 1
  }
}