Pith Number

pith:VSMZAXUV

pith:2021:VSMZAXUVVLZOHDU4WDN5YV3UML

not attested not anchored not stored refs pending

Measuring time delays: II. Using observations of the unresolved flux and astrometry

Eran O. Ofek, Ofer M. Springer

arxiv:2101.11024 v1 · 2021-01-26 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VSMZAXUVVLZOHDU4WDN5YV3UML}

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	2026-07-05T03:10:02.061540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac99905e95aaf2e38e9cb0dbdc577462df6c2ef03da19522769c77b83b23ffb5

Aliases

arxiv: 2101.11024 · arxiv_version: 2101.11024v1 · doi: 10.48550/arxiv.2101.11024 · pith_short_12: VSMZAXUVVLZO · pith_short_16: VSMZAXUVVLZOHDU4 · pith_short_8: VSMZAXUV

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/VSMZAXUVVLZOHDU4WDN5YV3UML \
  | 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: ac99905e95aaf2e38e9cb0dbdc577462df6c2ef03da19522769c77b83b23ffb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fafddd0b96a261c23552c82d4659ef22dd94d79898dff34cc7feec61bc538472",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-01-26T19:00:09Z",
    "title_canon_sha256": "eadfe51d3fbeeedfe6273e639363d10732aefbbc611faf865c98e13a17991102"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.11024",
    "kind": "arxiv",
    "version": 1
  }
}