Pith Number

pith:DQIIJYO2

pith:2009:DQIIJYO2YPQM4JJTXQKCKOQNOH

not attested not anchored not stored refs pending

Travel Time Shifts due to Amplitude Modulation in Time-Distance Helioseismology

A. G. Kosovichev, R. Nigam

arxiv:0911.4295 v1 · 2009-11-22 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DQIIJYO2YPQM4JJTXQKCKOQNOH}

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	2026-05-18T02:10:37.645915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c1084e1dac3e0ce2533bc14253a0d71f150f7f40883ba1f8750b0bd2cdadd1d

Aliases

arxiv: 0911.4295 · arxiv_version: 0911.4295v1 · doi: 10.48550/arxiv.0911.4295 · pith_short_12: DQIIJYO2YPQM · pith_short_16: DQIIJYO2YPQM4JJT · pith_short_8: DQIIJYO2

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/DQIIJYO2YPQM4JJTXQKCKOQNOH \
  | 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: 1c1084e1dac3e0ce2533bc14253a0d71f150f7f40883ba1f8750b0bd2cdadd1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "509b541fcbf2b409fc3f5d71174127db187d7f8823b2a6d13a0d2d6c479932ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-22T21:52:21Z",
    "title_canon_sha256": "03d09a0a35a75980a474843b448391b218d2c2ecba79673461bd531855344089"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4295",
    "kind": "arxiv",
    "version": 1
  }
}