Pith Number

pith:3YR6IHMW

pith:2009:3YR6IHMWEMQH7X5XCLYALWGQWG

not attested not anchored not stored refs pending

The Nature of Time: from a Timeless Hamiltonian Framework to Clock Time of Metrology

Enrico Prati

arxiv:0907.1707 v1 · 2009-07-10 · physics.class-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{3YR6IHMWEMQH7X5XCLYALWGQWG}

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	2026-05-18T03:08:15.047292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de23e41d9623207fdfb712f005d8d0b181341ded8a0f779d196405236aee0882

Aliases

arxiv: 0907.1707 · arxiv_version: 0907.1707v1 · doi: 10.48550/arxiv.0907.1707 · pith_short_12: 3YR6IHMWEMQH · pith_short_16: 3YR6IHMWEMQH7X5X · pith_short_8: 3YR6IHMW

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/3YR6IHMWEMQH7X5XCLYALWGQWG \
  | 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: de23e41d9623207fdfb712f005d8d0b181341ded8a0f779d196405236aee0882

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba633c0a6ce8ba1690cca8c9e3a00ca60f7e8893837d39f702e38763860f8fa7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2009-07-10T01:37:57Z",
    "title_canon_sha256": "097e979cabe2356f35878651fd86b6e078ed3da33db5359594f46bb4d00c6d67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1707",
    "kind": "arxiv",
    "version": 1
  }
}