Pith Number

pith:56MMYF2U

pith:2020:56MMYF2UN77GGXP3SZOM76NPGY

not attested not anchored not stored refs pending

Towards transformation-resilient provenance detection of digital media

Jamie Hayes, Krishnamurthy (Dj) Dvijotham, Norman Casagrande, Pushmeet Kohli, Sander Dieleman, Yutian Chen

arxiv:2011.07355 v1 · 2020-11-14 · cs.LG · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{56MMYF2UN77GGXP3SZOM76NPGY}

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	2026-07-05T01:51:48.814166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef98cc17546ffe635dfb965ccff9af3616396af4205c907516ad3361de78d9bc

Aliases

arxiv: 2011.07355 · arxiv_version: 2011.07355v1 · doi: 10.48550/arxiv.2011.07355 · pith_short_12: 56MMYF2UN77G · pith_short_16: 56MMYF2UN77GGXP3 · pith_short_8: 56MMYF2U

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/56MMYF2UN77GGXP3SZOM76NPGY \
  | 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: ef98cc17546ffe635dfb965ccff9af3616396af4205c907516ad3361de78d9bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adfd1710451e6e40b208075ac6f7e25dde64f4defcf251139673dcd65ae8ded5",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-11-14T18:08:07Z",
    "title_canon_sha256": "55d5bff88c17673c67efff04c7b8ac45c37c12daaf715201ff12d79622d6eae2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.07355",
    "kind": "arxiv",
    "version": 1
  }
}