Two-piece or Two piece or Two pieces may refer to: Bikini, a two-piece swimsuit Double act, a comedy duo Two-piece band, a musical ensemble with two members, a duo Two-piece gel encapsulation, a
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 0x4d7f8e89b3f602926aede709823d9bd8346c10b9c345b3d8ec69b94b7cfc3845. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2bad675-e4b5-4f81-a31f-3fb4f93a5564.json and https://artists.proofprofile.net/proofs/artist/a2bad675-e4b5-4f81-a31f-3fb4f93a5564.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 0x64e46aac708f0a7b6ebe20274b921e7ad16a27418602fa84b29cf5445718bb1c. 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/QZTB42235518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f5468cd0280adf8887cba00857e351023b6a6ffdb3bd1089a8ad7b43d105c7. 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/QZTB42235519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973d614e2f28bd0242190e9aa6a4cfcf6ec1529459af16c2f4a556e3a6c0362e. 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/QZTB42235520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c18ddbc66c112a20f6290cec048c38ed430996a5e3df3f2d1ba6ad14c6c998. 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/QZTB42235521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f069ca9a8eb3e0788cb8411eb830290d75c089a8b6c9d222f256a97d5c351d. 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/QZTB42235522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236f1fa0c1a9c57b7b07862b38d40408a5721d267caf33da7e689d34e40781f9. 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/QZTB42235523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9dbe0a78f8d12772a369325f7825f35d7c556b5937a8d1de012b7935acf1d3. 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/QZTB42235524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c4e29d18b86c00a29dd22a5a7e9e0d6edc647e47010cd729bd127cfe9698c4. 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/QZTB42235525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ff2891d43a18aed50a494282fc5f4b77def5e82dee978612ea3263d98d540a. 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/QZTB42235526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e5fd16762d376fb0198691a95d731e5d75024612da96baef0ea3318e93132c. 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/QZTB42235527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424329227e7efcc1a3e458c898b85b1042086f46ee963c0b6642a28e3886cf01. 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/QZTB42235528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd660657dc65b9e2cf4461b057a65acd98af2d5f0cf5c0b95cc5ce02094744e11. 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/QZNWY2028856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecec1f3a3b4107b2a254fcd567ef3a53048cabd64ce18df5d46dedc7685e3f9. 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/QZNWY2028857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7df843e1455dc1d85a97ca308f433ae2a9ed02f0e6db12efd7ceac08d8b2aa2. 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/QZNWY2028858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934b309f9b8f799891e485f9c5cd4a6c07691dc723f88a2c913c6c1dcc20d7e1. 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/QZNWY2028859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab6732ad400f8d34ea5cb1829bbfd9f5b4799a2e4c2dee22bae72546e495896. 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/QZNWY2028860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511d809d7c2b0edced7f57dd4fc8a04783fd380fd72ab56ae3d370eae634fcd5. 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/QZNWY2028861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc948b9cd92c035d9ad497a639dd9b027ab6cabd2289b7a30c1ce8b9811bccb0e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:21:16Z), 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/QZNWY2028862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b764bc7fd28f4d1e425714f4e0088965dafba315340a25ce60feaf05e48abf. 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/QZNWY2028863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f8ea52277a0fe6cc9d1e50573699582ae0ec233651a1740d38c2b8fe609c5c. 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/QZNWY2028864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a63c03b6e5fac9094a9a40d28e67c50590724b75c46c9126e40d9e2d328d63. 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/QZNWY2028865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9c71242dd72dac25b3940d852904fc37b1e8b0dc8a2292b149cef6d14ad7a0. 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/QZ8LD1998449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778b529a5ffdf18fd6d3ad7bba71ca8025f79f096af4f8382337fbd02c5b0c94. 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/QZ8LD1998456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f9d8aa40cfa4db8c42acfa4cf6a2c898e6840955f3b7f29862b5ac6e4c825d. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZ8LD1998450.
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 0x2eb673b938e933ae608190822b21e3ff9f71a115f268e2e8cc33c143f34f1bca. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZ8LD1998451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb25df6a294ed6d7f53ab25135e34dc970868f545d1b17ca324483e754195919. 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/QZ8LD1998452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a1e68803a20b59ef3e7f2207e5c49c607f4b4720b8f7d9302fcce6c09aaddf. 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/QZ8LD1998453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdada216b1f1f83632d7e644d55c7117f0f580a4a5de12ae205027546eea12ab5. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZ8LD1998454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8f71f03a47351a8b1df9a83e8326b59229daedc08a8f17bc0aaacf61773079. 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/QZ8LD1998455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c24cd7e5f091d8a51cda5394bb250cefafc7a5b84546ffca7499bdb07c3923. 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/QZTB72451331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500ef7dbe89bf649f610ed41d5ad2f3d76d2090411cf2ca318f0c930ffe3bbda. 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/QZDA72070299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f91abe6d36a87ea7db4cfd216b4e4e87fa132c560a9678b136c4a5004f7e6c. 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/QZFZ71974310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636c9d90e32edd2307952ff9d50f62258deab70c131f022367b8950ec879a52c. 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/QZFZ71974311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad3a148fc4257910dd4fd9717092254fe7561c283e3e25d26a32d3aa25286a3. 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/QZFZ71974312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0fb53c884e2d1697f2cab161ebf3e07c3435fb12131179263a06e87dea98ed. 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/QZMEN2219773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbe2087deb7979b6111a34d7b9bdbec62171460aa5e02e2d4f57e8325d9f52d. 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/QZMEN2219774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b94da2e8f2ad173ee33b8162967ad41fe77db79aef794dcb10882de806c3cd2. 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/QZMEN2219775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5092b4e2115ac64e47c85a10245b0f78c643bd99f871bb27f34d27931a121377. 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/QZMEN2219776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925784558f8ac920193fb3d831d3ca772678d684794f755c57346ac2c400b90a. 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/QZMEN2219778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d19e1fecf082389eba7acede34ca1fa58c4156841201085d582f9b2f7e4f43. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:26:27Z), 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/QZMEN2219779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9685ae87ecf02dadf45c541c12c42c0856eea929f1da1332b755077fe0571643. 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/QZMEN2219780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d972bc4ac4ece45d3f9a71862741bb35701d84c1a3ac0fd54792cdd028d934. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZMEN2219781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c62ec4cd828cde5d0f8affb8a155da6cdffaef0420107b56b51525f4347180. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZMEN2219782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0b2c1d95b51883c431578d5a3f64e29c2440a9f06cd8d35f9c5941f6e5d0d0. 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/QZNWS2127899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4661fc375a97e45d2d6788d0af4a7764ed6cceb332d976e561e7bc9cac0c2275. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZNWS2127903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb900e7b10f04b3d81fbc7ac2c0f909801231c2b2bd89fe832c21899a43be8dbb. 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/QZNWS2127904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa008fc8393743450132e2ee8a372775cd5198f8a25b6f7882da9c1ba9915caa. 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/QZNWS2127896.