Pith Number

pith:7TSHRFUY

pith:2009:7TSHRFUYLZEWJWDW3JWG2DKDSA

not attested not anchored not stored refs pending

Helioseismic Travel-Time Definitions and Sensitivity to Horizontal Flows Obtained From Simulations of Solar Convection

(2) NorthWest Research Associates, A.C. Birch (2) ((1) W.W. Hansen Experimental Physics Laboratory, CoRA Division), S. Couvidat (1), Stanford University

arxiv:0904.2025 v1 · 2009-04-13 · astro-ph.SR · astro-ph.CO · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7TSHRFUYLZEWJWDW3JWG2DKDSA}

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	2026-05-18T02:14:06.184731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fce47896985e4964d876da6c6d0d439014b26254bd7db17e5f8b645733f6c21b

Aliases

arxiv: 0904.2025 · arxiv_version: 0904.2025v1 · doi: 10.48550/arxiv.0904.2025 · pith_short_12: 7TSHRFUYLZEW · pith_short_16: 7TSHRFUYLZEWJWDW · pith_short_8: 7TSHRFUY

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/7TSHRFUYLZEWJWDW3JWG2DKDSA \
  | 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: fce47896985e4964d876da6c6d0d439014b26254bd7db17e5f8b645733f6c21b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f8b5b0cfdce3685884991288dac60404219c02fc21a8de0c2b7aadba0c9a4da",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-13T22:38:34Z",
    "title_canon_sha256": "296677d22ecc24a3ed67a28eed5953a0607c7e89eb6ee37ca66394b544dc683d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2025",
    "kind": "arxiv",
    "version": 1
  }
}