Pith Number

pith:ZH4CHIMM

pith:2007:ZH4CHIMM5PMOUIFD5LJLYTADNH

not attested not anchored not stored refs pending

A new approach to hyperbolic inverse problems II (Global step)

Gregory Eskin

arxiv:math/0701373 v1 · 2007-01-13 · 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{ZH4CHIMM5PMOUIFD5LJLYTADNH}

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	2026-05-18T01:37:11.919988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9f823a18cebd8ea20a3ead2bc4c0369c64f8ebcf0808d9eb1b58c94f25a268b

Aliases

arxiv: math/0701373 · arxiv_version: math/0701373v1 · doi: 10.48550/arxiv.math/0701373 · pith_short_12: ZH4CHIMM5PMO · pith_short_16: ZH4CHIMM5PMOUIFD · pith_short_8: ZH4CHIMM

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/ZH4CHIMM5PMOUIFD5LJLYTADNH \
  | 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: c9f823a18cebd8ea20a3ead2bc4c0369c64f8ebcf0808d9eb1b58c94f25a268b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd6e15a4fd6d847aa2b3bfcb71cb753a8e697464277dbe4bfb3e2d225826854b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AP",
    "submitted_at": "2007-01-13T07:31:15Z",
    "title_canon_sha256": "46f935b16bd6c47d2c0c3af058bae502f7030452a72c6b9d0950c1c32e4054bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0701373",
    "kind": "arxiv",
    "version": 1
  }
}