Pith Number

pith:HPGCECLK

pith:2021:HPGCECLKDNG5NV4M6FON4HMIXQ

not attested not anchored not stored refs pending

Content-Aware Detection of Temporal Metadata Manipulation

Anderson Rocha, Fernanda A. Andal\'o, Nathan Jacobs, Rafael Padilha, Scott Workman, Tawfiq Salem

arxiv:2103.04736 v2 · 2021-03-08 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPGCECLKDNG5NV4M6FON4HMIXQ}

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	2026-07-05T04:03:45.082310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bcc22096a1b4dd6d78cf15cde1d88bc0f0da053a2aff7484719aac8bf2b5052

Aliases

arxiv: 2103.04736 · arxiv_version: 2103.04736v2 · doi: 10.48550/arxiv.2103.04736 · pith_short_12: HPGCECLKDNG5 · pith_short_16: HPGCECLKDNG5NV4M · pith_short_8: HPGCECLK

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/HPGCECLKDNG5NV4M6FON4HMIXQ \
  | 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: 3bcc22096a1b4dd6d78cf15cde1d88bc0f0da053a2aff7484719aac8bf2b5052

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42641f971615f4850dd447c62986d9c1a8f749777eec5380939a2740a04b6eb7",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-03-08T13:16:19Z",
    "title_canon_sha256": "598f4107b8f5f0d96fa0dc62c940743385576e3d8744193a579bcf396da952b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.04736",
    "kind": "arxiv",
    "version": 2
  }
}