Meno (; , Ménōn) is a Socratic dialogue written by Plato around 385 BC, but set at an earlier date around 402 BC.Rawson, G., Plato: Meno in the Internet Encyclopedia of Philosophy, accessed on 16 Dece
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e455d5edb3a4e0a600e1c7baf64686c039024c2f63cb488a1f81991eddaeb2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfe97055-edad-4da1-a947-b854514931dd.json and https://artists.proofprofile.net/proofs/artist/bfe97055-edad-4da1-a947-b854514931dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9f19f7dbb0da40ec4c29a576187425f33fa7a10534989d569c99fe470d45bd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5BU2275267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf931f576946345e1dd27e5253906415619fb7ff86849baa081a344e6c9cc7f1b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2404264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578f80659ef4940829a4fd4da8e0742cde4a84451ce1bf50816bf34d54336b6d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fd45b538ea8138ef1ed4c0dee49134b53b86dc63640d830693a62e060e67da. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6261ba6b1a19b2cc38233d9795c25a682e4bf3966f7cc06fa3c431e0173eabda. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fab07eea6c63e45c879a2830e448d93feecc3aa1561ceced092555b73086ca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49431ae29a911cba409881d825d03920f9631552ad67dd8139cc10c39e5b38eb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0b4d9422010f4cc8ca96d5a060cd65da8eccbc43912775f542976780eee62f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fab07eea6c63e45c879a2830e448d93feecc3aa1561ceced092555b73086ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2309133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5480524b8b98ec9887a50ccd0da2ace4499dd294c5918e86839baf23f1d3e920. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMANG2214241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd0930b0ea5511af20337cdb3f0ffccf40ce4b75d3cb17d4c4cd0d3f096b00d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVEM2351625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea79bca06dd77f4467ab328a6f194385154c25db170dabecc661e1b0ce58772b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVEM2351623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e14010d8b9e4b6a3b44fd5df4d061ef82f2a380301e198dab52b2ba2b8bdb6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2302041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2144c723d1815d96f4c0a43c054043799e91f91fedc50b8a3566e62cb7c4dff4. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2270599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97ede09fec910c17f9ebdd7ee844d1c3159dece5b2743e74f7192b51e5074fe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2300984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2c0803f09927b9c13d46e41bcf3f7a5804eeebf6846dda50c9fe67a55ce7e8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKZGC2302599.