Pith Number

pith:4DCA355D

pith:2012:4DCA355D5P36XG3SS66MONWBQF

not attested not anchored not stored refs pending

Video Chat with Multiple Cameras

John MacCormick

arxiv:1209.1399 v1 · 2012-09-06 · cs.MM · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DCA355D5P36XG3SS66MONWBQF}

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	2026-05-18T03:46:04.933731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0c40df7a3ebf7eb9b7297bcc736c1816eccc6daa84d434eb3b2d74675c249b8

Aliases

arxiv: 1209.1399 · arxiv_version: 1209.1399v1 · doi: 10.48550/arxiv.1209.1399 · pith_short_12: 4DCA355D5P36 · pith_short_16: 4DCA355D5P36XG3S · pith_short_8: 4DCA355D

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/4DCA355D5P36XG3SS66MONWBQF \
  | 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: e0c40df7a3ebf7eb9b7297bcc736c1816eccc6daa84d434eb3b2d74675c249b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "174b4312ee22973b3f72a828180d3fe24f47c28bab3aa216da6260f4aab83acb",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2012-09-06T20:10:02Z",
    "title_canon_sha256": "eefaf29a5a1a84d5d224d29e7f00d63099fc7c158a0ae3e1e0af4932168be746"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1399",
    "kind": "arxiv",
    "version": 1
  }
}