Red hands,Hyun Seung Yang, Rainer Malaka, Junichi Hoshino, Jung Hyun Han; eds. (2010). Entertainment Computing - ICEC 2010, p.63. Springer. . "We are reminded of the schoolyard hand-slapping game know
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 0x81beb67e7a051222e5420cba7863e56ff662e2de4a8ed29933cf2f2ad985a417. 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/b0021ea8-b9b9-4be0-90a3-56f5d93cf02b.json and https://artists.proofprofile.net/proofs/artist/b0021ea8-b9b9-4be0-90a3-56f5d93cf02b.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 0x97765114f6e4eff21ae1344051e8ffe839ec14409b050e47fa162452bbd06b1e. 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/QZTAS2238901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf251edcf57332d8c203f6e8ae01e62180e8a8e6bd10990ed8d8e7672ffa6eb63. 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/QZTAS2238902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa736fd33d8a239e04ac47b6a2082579933db931fd49c1bc14fcc25fdfed2fb6d. 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/QMEU32208276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80af50e0f4c1277996bee4cc2a2651521c476b0fd0f79a39786326172da90eb. 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/QZTAS2238903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf209927062efc7b816dbab48ed869e8b06af13193a8b7c76c01e577f70dc6f9d. 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/QMEU32117697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40de026e5734067786c74ff52c2da48a3c0bb431535e64b3b56ca4a64b1dcc82. 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/QZTAS2238904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3473e1e0cc72feac5f023c93d02ca0e9b0a3cc1dd3aada44cfd0cbce916ed722. 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/QZTAS2238905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e8aba3cbaa58489570df64486390c96660b173377f5677e8167b38a20de15e. 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/QZTAS2238906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fd5bcb0db8158bc173715d975794dc2bd6f8867b565a479005525b9c2b4d3d. 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/QZTAS2238907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741b13a5eea1b8f79217153f119efacb62b3e4014f65fc5b36603e748c02d4d7. 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/QZTAS2238908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ebb10fd03146aa8359bfd68f6f44d7aabef3233991f3f3aecce9c1f20c78bb. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QMEU32106142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93e67a39d959eed86ecbad25728ca7f57390e2153ce84cdfcb490adf6ebc5a1. 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/QMEU32106143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa209f6db9978e34d7400a84efa11e198fec191b00a3e86f953b4a847cdb2d795. 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/QMEU32106144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c573d8dec13e13a9e168895b8275ff7a34dc8196bddc210ae579e4ed3dc9353. 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/QMEU32106145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ae36e3a1a75cbb587fb2a64c236311febb1c46ff6a23f4b1209dfb63177b75. 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/QMEU32106146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6e671b9557b9f1866ae567c78cf5ac044de263903c244315977a4b99581de3. 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/QMEU32106147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2ef68da082a69c34302aa7cdbd6a9929454929fa4fb8f73dd0909acb54601b. 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/QMEU32106148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f26b1eab9d9993f5f7a184b6649ae28564c10bdba49857656d1e653abe67ac. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QMEU32106149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0fff1ed34fec496e1cefb882140d8ec1cf91ca733ffadc9da072f233bb138c. 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/QMEU32106150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5757385f9d63c809fa182b0429286740bb98d023723770ce8303dabb89eac3b9. 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/QMEU32106151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef17ea4725807f59de3dd635f4691b9ce9376bfaf11a954215055c539b47090. 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/QMEU32106152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd044ef5691f6dd86a2d253cb11f46a3581cdb87d47ac3be168b53a679eb5a8a. 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/QMEU32106153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0663c2a8af2843546a666e262d20e425036edaaf9dedc1f0dab8684564bb6895. 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/QZK6H2046265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbff594de6836b2391ffa465f685cb61416894fc3b2680f58c0d83b6c88ab7d4. 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/QZK6H2046266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aaaad25a29ebb480f18da432a4f1cade50d88dea1c00f764d17280c9adfb966. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZK6H2046267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b319c3e82c98d2928698b066e0f081826f75bdde7752bdea587cfd41c96897. 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/QZK6H2046268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd235828f9af5614d08f16ba1da8999405530b2bce180f1340d41681e878333f7. 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/QZK6H2046269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401b467baa1a63fccf7cb9ecc7196314cb908f7c1af32e0b0f105d3d69c802a4. 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/QZK6H2046270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c22414a6a1268b9090e85db848baf8833a78f08e55c6eed498026eb2af6e867. 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/QZK6H2046271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa504de5961c32da9daa18671cfbfee0d4dbc5aeb002b7feb0f5e7797ca08a1cb. 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/QZK6P2009909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a0d712421d40a6772ffaacf6476220e408af5a8669a3bdfeaf0dcc8e9b727a. 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/QZDA41922169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb567c6f7d0fa5a1eff73cf5434df88affd72d17b05dbd26145c8c3427900622f. 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/QZDA41922170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f0d41656dea74fea4bdbd5e4b934c58458bc8accf288b21aa44d4cc8a25df8. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZDA41922171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd717c4f837392253ecb88c51562fef69e46b82bd02d19b3fc7726ad10261c9. 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/QZDA41922172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516d4fb4e1e082d680a121d0266855d9ee374b7b32bd6c543a9f4ecaab715897. 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/QZDA41922173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2805791304f2cc68788b621e3ba7b617b1d3e65c2724b560f86a6d95c3e4d33. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZDA41922174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007218de310cb16ad08cc186ecbd813b49bf7382f948a44c9b2a6dc8cb753922. 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/QZDA41922175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fa58d16caf36de76431070adf4442f29d8b08ded7094b756b84106dc0cfd03. 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/QZDA41922176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdc0342863b45306af58c7da58ae17a7da733985c071045733a2657100c6d91. 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/QZDA41922177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079a595b4a56c8f8480d36e16b0520b9d5321d01390533d28336f0247e85a465. 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/QZK6K2498211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb058e5bcfc0737f6d81932b87dbf45047f9c7dd274bc7664c7ce03494824873c. 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/QZVR22400733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871f6e47a56db7f686ac7c10659893c91cd68f5d35339517a5e072ee8742de5e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZVR22400734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b519a06862e75596486a95a02342a68c5ea53188603847bad2229d5d42f1df3. 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/QZVR22400735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb25de6938c3e79583d37200bdd261f73f981b1a50fe5ef7c359454eb48d8dd. 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/QZVR22400736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb058e5bcfc0737f6d81932b87dbf45047f9c7dd274bc7664c7ce03494824873c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZVR22400733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079a595b4a56c8f8480d36e16b0520b9d5321d01390533d28336f0247e85a465. 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/QZK6K2498211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf457cc2400bd10c2f88ee3261dff1e826c5be08cb954c979e370e27471efe4e. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZTBA2202814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf209927062efc7b816dbab48ed869e8b06af13193a8b7c76c01e577f70dc6f9d. 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/QMEU32117697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa504de5961c32da9daa18671cfbfee0d4dbc5aeb002b7feb0f5e7797ca08a1cb. 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/QZK6P2009909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ca90e90b757c261ba3fef0d6cab9f913a8e0eeba70515e8e7e5d9e457dd728. 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/QZFYZ2013895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7479968e0ed03dbf8d8c29121996f56de01b5a9510c157635b75ce12459d766. 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/QZFYZ1908356.