Pith Number

pith:XTR2U36D

pith:2018:XTR2U36D7DS372EPNY4LPM5DE5

not attested not anchored not stored refs pending

Observation of Optical Backflow

Alon Bahabad, Thomas Zacharias, Yaniv Eliezer

arxiv:1811.09163 v1 · 2018-11-22 · physics.optics · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XTR2U36D7DS372EPNY4LPM5DE5}

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	2026-05-18T00:00:06.855130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bce3aa6fc3f8e5bfe88f6e38b7b3a32755d1edcee1c20001f8489b89b6a493b5

Aliases

arxiv: 1811.09163 · arxiv_version: 1811.09163v1 · doi: 10.48550/arxiv.1811.09163 · pith_short_12: XTR2U36D7DS3 · pith_short_16: XTR2U36D7DS372EP · pith_short_8: XTR2U36D

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/XTR2U36D7DS372EPNY4LPM5DE5 \
  | 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: bce3aa6fc3f8e5bfe88f6e38b7b3a32755d1edcee1c20001f8489b89b6a493b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bb2a3a479d4eca5ec518da3291baf94b51aaee119a20590670912a59dcf2212",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-11-22T13:21:32Z",
    "title_canon_sha256": "6e167852215e3a935c62fba726ba551ff405be6187ef99709d8792265987a961"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09163",
    "kind": "arxiv",
    "version": 1
  }
}