Pith Number

pith:MBQPQQSX

pith:2011:MBQPQQSXMFIYLKCZDZS74VMAQF

not attested not anchored not stored refs pending

Adaptive hybrid optimization strategy for calibration and parameter estimation of physical models

Dylan R. Harp, Velimir V. Vesselinov

arxiv:1111.1204 v1 · 2011-11-04 · physics.geo-ph · physics.comp-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{MBQPQQSXMFIYLKCZDZS74VMAQF}

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	2026-05-18T01:59:45.342910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6060f84257615185a8591e65fe5580815e20d5fab4a89d2eb553946286254221

Aliases

arxiv: 1111.1204 · arxiv_version: 1111.1204v1 · doi: 10.48550/arxiv.1111.1204 · pith_short_12: MBQPQQSXMFIY · pith_short_16: MBQPQQSXMFIYLKCZ · pith_short_8: MBQPQQSX

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/MBQPQQSXMFIYLKCZDZS74VMAQF \
  | 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: 6060f84257615185a8591e65fe5580815e20d5fab4a89d2eb553946286254221

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "449347e61091a426b6e9b48e594d04f2da4e6d7124d5d16ebaf31eb498890060",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2011-11-04T18:31:24Z",
    "title_canon_sha256": "b3bc4465e426c819d5114e130d7649aad528bb048b496d6fc6577b5d2a992efb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1204",
    "kind": "arxiv",
    "version": 1
  }
}