Marija Naumova-Bullīta ( Naumova; born 23 June 1973), known professionally as Marija Naumova, is a Latvian singer. Under the stage name Marie N, she sings a broad range of music ranging from pop to mu
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 0x73bbcfb55cf658ad8db67442381a21db786768fcb7f6b1ae4eef983848a9f64b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68c06261-6efa-4afb-a5c9-c0e4d1bdede3.json and https://artists.proofprofile.net/proofs/artist/68c06261-6efa-4afb-a5c9-c0e4d1bdede3.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 0x50fefff6b1c227f9123a48712223ec62f181c3de4d065580b8d7a04a03268dc3. 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/QMDA71391550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7a04aff80e0ca040e2b2c298dd9fdccab216cb5549efb561fdb92251ea8db3. 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/QM6N21408672.
Ziemassvētku dziesmas un instrumentālie pavadījumi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c9980bb072097ba2f69334967f9efa9c0c4ab7ac2ee84b91b364824631a5f2. 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/LVD011400450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024a525b6811ed41f60354ab58f56ef26aa8a995182a18d206f281b8045f9d6a. 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/USA370580185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a15672d538f5cf39dedf8b3ae101931d4537d70e47b189a82322326ae45f5ba. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFMG1416864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca54001ac1b12e3f1bfe1dac15a16dca2e6b03af5bfc1f219bec7f9e46fafdb. 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/QMFMG1416873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14de56b9f238453c3499290e09b904ee20a3bd5dbd6e04d73d57ecd301861865. 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/QMFMG1416865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c22456c28b1e4a41e54715cffb4ab124b0cbebd9a42b02b34d5eb3abf1aa6ad. 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/QMFMG1416866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1086705225d3e6bae6d80769ac9c96936c2cf3d39fa096964652f6f2845fd80. 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/QMFMG1416875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e240caf57258caa34a86c06d0d7f89ef2d8b59039614b4afd0d9b060ef53d9a. 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/QMFMG1416867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd10f41a3f280a38f05877a927ecde37f82e4b4ab0055b6d73417e20d4201c0a. 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/QMFMG1416868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85d8c00a687c5ce458017ace9bfcde10cd5c7e096ebac9821b936c9f496b1fc. 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/QMFMG1416877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82488e9fa11e60a94aac5844dc9d13544491623ec7d9aa511b77f6fa47fb136c. 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/QMFMG1416869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dfb7a893a76675d268806e16b4a88fbc02e409e92e34d8a3c67e6c886c127a. 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/QMFMG1416878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4845e1e23783583052056be6d4dfa11b57d1287bbd80b81ccc59d8c69d1a315. 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/LVA741300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b1db470c14cda1cb77ccf314d0807550243c06adb080727acaba7ecfadc9fd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:08:35Z), 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/QMFMG1416871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70c598fd402e90988f477b43d89a727b6264ab3e2131dfb5c31b75d388064d7. 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/LVA100200117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d929ec9aa6a47477432b39f4e2f4657427ad3fa40b5a1dd913de54ca9f91361. 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/LVA101300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9a57ea2d2795b22fdb2e2e306debf343c52a45394124ff634f491f4c1d44ec. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:49:37Z), 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/LVA100800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7ce3a30550379a52e1c31191b5dd7859dcfb1ebc55f8373faf702fa10b68a2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:06:54Z), 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/LVA109800178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5360dae0db991f89bc13a0d9d9fa4e9c9f3b9ea7024fd81e6f40b09e5a95380. 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/QMFMG1318140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cc9a99b5d1e396a98ab5c5f7c436b89eba3a378aa0a07698f008a9d2ec5568. 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/QMFMG1441390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6d3fefc8b95bccc9e96621ad54bafb73fc83e5fee7348f781f42a591a6e273. 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/QMFMG1441393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200262e2512c68e655314e7299d3d0c976660cc358cba60d8461cf6223b4fd67. 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/LVA109600183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fd0d439ee2ef27856440144dfebbdd61b167a43e4b5a82c5e2050cb5cc677d. 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/LVA101400486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1657926cab3ca2486deb204380ad48779377c78a77321838933ec148136a1813. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QMFMF1500942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b423d5c6f8aab65a10410242261b211592a19f33495f85cc24e19f8c28029c. 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/LVA100100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b423d5c6f8aab65a10410242261b211592a19f33495f85cc24e19f8c28029c. 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/LVA100100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e72b81c4266afb5b2a3eb79f3a8a65292dbce8066c672c500ec2f6217e288e. 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/QM6P41546247.
GUNTARS RAČS Dziesmu oriģinālie instrumentālie pavadījumi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d631ae1853eb20211d58005843af5d66eea8da148e45518b85ef6d127358765. 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/USV291459830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fbeac5590d8889e1139d68c77d6a7620b02f98db4be83a62354c243db53a87. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USV291459831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7c62a9719f758ee6ba48f8ac1acc4a000f9649ccfafbc77d4655669f4031ca. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USV291459832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e513523e977871e07c88321c7ced1462247e3c53771b2332b3926beb33ef43b. 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/USV291459836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a003d12c38d6de331f1861fec72efd5492996113afe5e35be152a64bc3426fc. 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/USV291459837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0dbc941724760694ef9a2f4f8cc94717289c260abfebe150ae716378f3efac. 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/USV291459839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61e4b1a4e47ebf3e03c8211c1cf0f9b14153ccf4919020a6f4ad0e643f4e432. 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/USV291459841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e820f97588e33b07919e565f0f3e1af15537cf13ee3ed72d0c90a622642fc77. 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/USV291459845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf4c0c02c6198e9134c08a2f785caee690f662002c19f016ab05ed6c0cfb394. 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/LVA171000005.
Guntara Rača Jubilejas koncerts "Tikai Tā!". Live at Arēnā Rīga, 2.daļa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4847dcbe647a3ce179803660171fd8bad19ff9245013d00ce804cdc0ab6e099. 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/QMFMF1519446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1847a66d59775016159eba185f8da8d28b25d3de8c5aef0ae2dcb45a331fd7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:58:23Z), 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/USA370580560.