Pith Number

pith:WL3FQ3G4

pith:2013:WL3FQ3G4AF2ZNPA3VQOW2GFVIP

not attested not anchored not stored refs pending

Using river locks to teach hydrodynamic concepts

Anderson A P Silva, Enisvaldo C. Silva, M\'arcio L. Rios, Thales C. Mendes, Vagson L. Carvalho-Santos

arxiv:1309.6808 v1 · 2013-09-26 · physics.ed-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{WL3FQ3G4AF2ZNPA3VQOW2GFVIP}

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	2026-05-18T03:09:21.824986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2f6586cdc017596bc1bac1d6d18b543fde51326cb8e63b779fd896bb773b537

Aliases

arxiv: 1309.6808 · arxiv_version: 1309.6808v1 · doi: 10.48550/arxiv.1309.6808 · pith_short_12: WL3FQ3G4AF2Z · pith_short_16: WL3FQ3G4AF2ZNPA3 · pith_short_8: WL3FQ3G4

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/WL3FQ3G4AF2ZNPA3VQOW2GFVIP \
  | 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: b2f6586cdc017596bc1bac1d6d18b543fde51326cb8e63b779fd896bb773b537

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45b2b85b6f41814b42d9111354f10a802cb47a07b37576bf540135e15fc9bd21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2013-09-26T12:01:56Z",
    "title_canon_sha256": "69b713a0167dd373bbcbac739108ae5a2bf4e01ea37d48e821b7d8da73793c29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6808",
    "kind": "arxiv",
    "version": 1
  }
}