Pith Number

pith:JKDYGICH

pith:2011:JKDYGICH2X4CTWAQEIP4YFSIJB

not attested not anchored not stored refs pending

BAKTRAK: Backtracking drifting objects using an iterative algorithm with a forward trajectory model

Atle Ommundsen, Cecilie Wettre, {\O}yvind Breivik, Tor Christian Bekkvik

arxiv:1111.0756 v1 · 2011-11-03 · physics.ao-ph · physics.geo-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{JKDYGICH2X4CTWAQEIP4YFSIJB}

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	2026-05-18T03:28:06.398236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a87832047d5f829d810221fcc1648484377251da565f4136a467a5398be7a55

Aliases

arxiv: 1111.0756 · arxiv_version: 1111.0756v1 · doi: 10.48550/arxiv.1111.0756 · pith_short_12: JKDYGICH2X4C · pith_short_16: JKDYGICH2X4CTWAQ · pith_short_8: JKDYGICH

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/JKDYGICH2X4CTWAQEIP4YFSIJB \
  | 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: 4a87832047d5f829d810221fcc1648484377251da565f4136a467a5398be7a55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b97e7c65ceba235941fdfb0e1212e3dde253bff4bbdce535dce9178bcd89bd56",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2011-11-03T08:51:58Z",
    "title_canon_sha256": "1e60331c7b5d76ee42af6f43826b1ab0145fd2ac1514a05a24eb625776d29c0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.0756",
    "kind": "arxiv",
    "version": 1
  }
}