Maazel is a surname. Notable people with the surname include: Fiona Maazel (born 1975), American writer, daughter of Lorin Maazel Lorin Maazel (1930–2014), American conductor, violinist and compose
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 0x5b24dd43586af37bed2af03eb6506f6b5db2ce5537afe18022517dfa84ac8da5. 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/eef8018b-447f-4f2e-82f0-49716f18cd06.json and https://artists.proofprofile.net/proofs/artist/eef8018b-447f-4f2e-82f0-49716f18cd06.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 0x5384891f35db5242a0bdf2bb81906872658c20b966b7032491936d5b3ff01713. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA81876375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1692f48e5f2e77a26e6df0a6a6f6790b5b9fb7f219099424ec273cfa6890d9. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/USA2P2003700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9564bec6dba2243e05a208f543e632372fd90397fe7fa2303067b95ad81a5995. 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/CA6D22000283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9425fd984606220514d1489199186d042e905423d6842b6fe8273e317e3b672. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CA6D22000319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d189bc2b08150f3b98f5f405c7474fae2ee1aa47d4562140351e838f654f73. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CA6D22000320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065238aee8a602b647d4114633deccc5823055685efad1adafd69e30b9e39a5c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA6D22100727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8978564068bc1cb6fa3c31563a7795b80fba544762a697b6f7aa0dec33dc76b. 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/CA6D22200374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd871ea03aa06eab513dd3d6f36c2f7870e71a3619715fd892f451134e6ea23e5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM6MZ2520009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca75fad0434dc361733b031b225ba94d33f8d3e7b014ef40bd85915253f92bf5. 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/CA5KR2386625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc046ea0ace8ca35c1948c30c95008905c12e4d60fc6c6fe42e0664010115dc. 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/GBKPL2086537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dea109e38e8659e077997b25e6db6a757f21b2a7edd742e6860c9e92cb678eb. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USA2P2109851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbf11ffdb8cb028e24cc9c09b096b6878a21e379b9bb654200b6676ec523f5f. 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/USDM32135902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9991650dee2ae915ff46208ffc868844ebe4326e52717676f936d3ddbbe9749. 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/GB2LD2320148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98974f4da378973fca8dc5e10ff24f192a6048bd7af2dd9e326bd27f4c8680f1. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBLV61912180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a5d7ed915121d165fd50a63be47b6f806d7099a64e96a35e3f130ede410457. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBLV61912182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa46449b65a62cc0155054fd68a8e313701eac382ab970d726a40040e96ec7e. 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/GBLV61912184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9564bec6dba2243e05a208f543e632372fd90397fe7fa2303067b95ad81a5995. 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/CA6D22000283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d189bc2b08150f3b98f5f405c7474fae2ee1aa47d4562140351e838f654f73. 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/CA6D22000320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bc720fdd11a40dfeae5c472bc60540d00f46823b2027c0c47fa551c97516d0. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/CA6D22100180.