Pith Number

pith:7VD3MFOA

pith:2019:7VD3MFOAS3YM2SFRL2PUYYNKIG

not attested not anchored not stored refs pending

Tensor-based subspace learning for tracking salt-dome boundaries

Ghassan AlRegib, Zhen Wang, Zhiling Long

arxiv:1901.02921 v1 · 2019-01-09 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7VD3MFOAS3YM2SFRL2PUYYNKIG}

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	2026-05-17T23:56:36.045929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd47b615c096f0cd48b15e9f4c61aa4181b52eca305ef1612b606a5d5e45a36d

Aliases

arxiv: 1901.02921 · arxiv_version: 1901.02921v1 · doi: 10.48550/arxiv.1901.02921 · pith_short_12: 7VD3MFOAS3YM · pith_short_16: 7VD3MFOAS3YM2SFR · pith_short_8: 7VD3MFOA

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/7VD3MFOAS3YM2SFRL2PUYYNKIG \
  | 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: fd47b615c096f0cd48b15e9f4c61aa4181b52eca305ef1612b606a5d5e45a36d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b42059f2684f795a808bdc93a50d9f559cbdb9a7bf645df34887beefcd396d5f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-01-09T20:25:40Z",
    "title_canon_sha256": "bcc81400d608a7f55244585bdf99df70e4f2daa86d4791dc2c4bfb2e2f89cecd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02921",
    "kind": "arxiv",
    "version": 1
  }
}