Lumea (Romanian: The World) was a monthly magazine on international politics published in Bucharest, Romania, between 1963 and 1993. History and profile Lumea was established by George Ivascu in 1963
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250e98fac2d93bb5bfe1ea738cf6caf6373c56a496a805d1bda6945c14aa9e97. 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/f1b03fe3-936e-4389-af5a-cd4bbc547cfb.json and https://artists.proofprofile.net/proofs/artist/f1b03fe3-936e-4389-af5a-cd4bbc547cfb.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f09103a5bff125ec638b37dca39b47d69eed59210504eff31f13d9bf8f1d0df. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZS7J2405838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4f1c68b308dd30a90b36d8ccb0d888e9090a7ef87add122db153c26bdf4865. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZS7J2461801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1317db46e4cca3631efef1fa136e5391de9401370407c9cf73212c1b02a9b08a. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZS7J2514404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35903280d3a4e2d5ed35ed67eddec8668bad9fbc39a8021b7ba290f1aa29704b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZTLA2592074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace27652bc9499226548da4d27afd66ebff3f5a3d792f62effd61bd111c9e3ac. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZTLA2523629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a3b54758e9f32fc7b2ca5851bf5502450a666edc188321d49995505899bd9b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZTLA2547046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82adb6ea48f775e27120a8780a880443fb3f9ea6dbff8f26eec7412cb7ef3017. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZQAY2525464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cef779f0ac630b55185d31cc040e4468467a747ab6833ac8f9798e53b177d45. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZQAY2579777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2984212da566f8bc51e0664a62fce4271bbb85a0b908debedfbcad183231e3bd. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/QZQAY2561137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2b4c4efe8e308f17770335c1be9b09dc889c2f6ae4722a7523110751f4b3bf. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZQAY2524805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfbf2c0c2c8ee6324a538cff3dc11759d54b8c099ed023708472123e0b66172. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZTL92596048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626c43a5e7e4d150b15e4dc6026d7c4bc03042b402df0e8caf480a04e5bc7276. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QZS7J2556239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ee436301a316a8f699a82951cf627c471f3a5a51c88891ac7c462d4f22f15f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZQAY2505614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7828b6d0ee128e94541a8340fdcba428df5b97f1d764ece9fe754461f6f7e35. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZQAY2597652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b5a9779d1b5ae33d74ecea5e783236017c2fe46b91ecdcecafa025738f90ce. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/QZS7J2535501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4087d846e4ce3f7b2328bf233e82944308dba7a047a30d706fc8af82488e2ae. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZQAY2582197.