Pith Number

pith:DULKRP5S

pith:2016:DULKRP5SOD5CK7UB5FCDVPVOUO

not attested not anchored not stored refs pending

Reading Between the Pixels: Photographic Steganography for Camera Display Messaging

Eric Wengrowski, Kristin Dana, Marco Gruteser, Narayan Mandayam

arxiv:1604.01720 v1 · 2016-04-06 · cs.CV · cs.GR · cs.MM · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DULKRP5SOD5CK7UB5FCDVPVOUO}

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	2026-05-18T01:17:35.727055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d16a8bfb270fa257e81e9443abeaea3bfa7a84805d8f8f060a8fe540c0ca6ac

Aliases

arxiv: 1604.01720 · arxiv_version: 1604.01720v1 · doi: 10.48550/arxiv.1604.01720 · pith_short_12: DULKRP5SOD5C · pith_short_16: DULKRP5SOD5CK7UB · pith_short_8: DULKRP5S

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/DULKRP5SOD5CK7UB5FCDVPVOUO \
  | 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: 1d16a8bfb270fa257e81e9443abeaea3bfa7a84805d8f8f060a8fe540c0ca6ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cac50ecd270f8068b06121dac103a6a37587f04a9c6a51d9e5d0af03e0395f28",
    "cross_cats_sorted": [
      "cs.GR",
      "cs.MM",
      "cs.NI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-04-06T18:43:18Z",
    "title_canon_sha256": "cf63ccad39091b31e7f3e5cc446b38b218b9a558b55b1d7f1686b7aa05183f77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01720",
    "kind": "arxiv",
    "version": 1
  }
}