Pith Number

pith:UJJDSEJ2

pith:2022:UJJDSEJ254I2RAMOBPANNESSCN

not attested not anchored not stored refs pending

Totems: Physical Objects for Verifying Visual Integrity

Antonio Torralba, Jingwei Ma, Lucy Chai, Minyoung Huh, Phillip Isola, Ser-Nam Lim, Tongzhou Wang

arxiv:2209.13032 v1 · 2022-09-26 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UJJDSEJ254I2RAMOBPANNESSCN}

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	2026-07-05T05:01:05.650626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a25239113aef11a8818e0bc0d692521376a0dffcf2625415c870b03a904cf0f0

Aliases

arxiv: 2209.13032 · arxiv_version: 2209.13032v1 · doi: 10.48550/arxiv.2209.13032 · pith_short_12: UJJDSEJ254I2 · pith_short_16: UJJDSEJ254I2RAMO · pith_short_8: UJJDSEJ2

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/UJJDSEJ254I2RAMOBPANNESSCN \
  | 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: a25239113aef11a8818e0bc0d692521376a0dffcf2625415c870b03a904cf0f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75a6585eefa8bdff519375daa169c34d8ca25b118810843b309cc5b332ac4d02",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-09-26T21:19:37Z",
    "title_canon_sha256": "82322378e29a6f564cdc3205574e4000239cb665ca9ff48247b50e11c1dca17c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.13032",
    "kind": "arxiv",
    "version": 1
  }
}