Pith Number

pith:APHAFGQK

pith:2018:APHAFGQK3G45GWYENVUOU7PN4N

not attested not anchored not stored refs pending

Binary recovery via phase field regularization for first traveltime tomography

Charles M. Elliott, Oliver R. A. Dunbar

arxiv:1811.02865 v2 · 2018-11-07 · math.NA · cs.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{APHAFGQK3G45GWYENVUOU7PN4N}

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	2026-06-04T20:13:39.838649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03ce029a0ad9b9d35b046d68ea7dede379b5687062815114daff6672eca68d87

Aliases

arxiv: 1811.02865 · arxiv_version: 1811.02865v2 · doi: 10.48550/arxiv.1811.02865 · pith_short_12: APHAFGQK3G45 · pith_short_16: APHAFGQK3G45GWYE · pith_short_8: APHAFGQK

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/APHAFGQK3G45GWYENVUOU7PN4N \
  | 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: 03ce029a0ad9b9d35b046d68ea7dede379b5687062815114daff6672eca68d87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0eb68e9af3044b18c44b65296f468573bfed94dc7d40db6ef64e3864be79a957",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-11-07T13:05:10Z",
    "title_canon_sha256": "38f7de10b233d4bb4937d36425340de2359d642c3e26224dfe5babcdd5d9c922"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02865",
    "kind": "arxiv",
    "version": 2
  }
}