Novac is a Romanina surname the Romanian form of the Slavic "Novak". Notable people with the surname include: People Alexandru Novac (born 1997), Romanian javelin thrower Ana Novac (1929–2010), wr
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 0x7fecf79981aa0d3e0d5dd8e4b11f57d51b07ed1db0f2017ab2e68f3838fba158. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7ebe00f-7372-47e3-acfd-6acce60a0f12.json and https://artists.proofprofile.net/proofs/artist/f7ebe00f-7372-47e3-acfd-6acce60a0f12.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 0x955a28023214b3b63623cba570105bef13728a6145fb66694fe26046733bf018. 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/QZHN92028935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff1907392d98a96a8043cbe04cbd399b6ca5c7341ef10246975f561b9872693. 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/QZES62021368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758bcd3fdf7f184b01b333b0a89038d0a75f267db3bdb9cd0786f3e862681cde. 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/QZDA72026796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dcea07b779a9c866c9b7fc5aec37ef374a39c3b797c95e7c4e8074e3b04246. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFZ71985560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875802c96651fc30fa894f2406066a74ccc219eebf1b186a50f4405ab02d5aeb. 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/QZGLS1936164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bca48f2e6bb23699471a739634d327ab1910a44fa0d1b7fcb447a2d08ea855a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZ5AB1999959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64787545c2f9df8def63aa3633d4388a9e3dfc485de115b369c09b8324a21862. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ5AB1999961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa066458d52c163ae544eb797e20961eafdbf87eabfa9bad840008a8cca8e7d5e. 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/QZ5AB1999964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdf347e70f34735635941e4f6fccba6a82dda91da650d990169bed0d71eb255. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZ5AB1999960.
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 0xa83e5a8f2ea3021f5e80f2b72f7b73e28f362c55e4cdd944e87d571fe5efc636. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZ5AB1999962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f560b5328efa7ce5bef2839215260e6ba37e5c20c453c58a43785b2b5a177c3. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QZ5AB1999963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efe5faf3080ad5d3d1de48646ddd600ab76c8a9923caaea14b6c03169427a77. 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/QZ5AB1990298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbcf3c7cde6fdcf4bfe406f79058e0328efc4248a5194b487c189ccd3418ac0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZGLM1924581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256efb5dd5cd7743633ee9a3aaf9cf0b88c104b90dee57bac0ec7eb9a42acf3b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US7VG1805962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76ee60127d6904b4cfa90cc9ad630f8b8b2cdec74f1e3f1f42221a843ca15d2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAER2068337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16653a2e1c9c407aa00a2f57937fcddfffc15c2d74672e816fbbf338dc7a591b. 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/TCAER2068351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193f82d2177f9e920077c664a476f02382216e023f8c53aae69d4bf833ebde02. 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/TCAER2068363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fedf643c37dc82b801c2bcc715bd8b48829b5c01a8ef19a4b600553f8d4bb00. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAER2068409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7793e514ecafdd4bea7da10ada614f9e8c3c2691de930c93446a1ad95b766924. 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/TCAER2068430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1d17d627145889aafd3d255a688d899a835e7400fc96010bb426816583c8ab. 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/TCAER2068431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16c32776b8da6a6fe04076a4873e7ad67ed008100adb4ab1e34294d7abb0ab1. 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/TCAER2068449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf208b7c98a11fe31fa73321341c3ef490d48a0c14378c13dc677a7c548a1f7e. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T16:59:38Z), 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/TCAER2073420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d133e9d25da8cc42219ee287b81a90026c01428cee2fcca8b40189d542a8b9. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/TCAER2068399.