No Heart may refer to: No Heart (chief) (active 1830s–1850s), Iowa leader "No Heart" (song), a 2016 song by 21 Savage and Metro Boomin No Heart Creek, South Dakota No Heart, a Care Bears villain
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 0x57b6c601f5ea89c6646cc3f281ac201d0d650da4010338d1ad5977879d269fe2. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e125a76-30d5-4a9b-82eb-e08a28950774.json and https://artists.proofprofile.net/proofs/artist/4e125a76-30d5-4a9b-82eb-e08a28950774.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 0x37274f3d7758aa9a2c3760fabe58cecccb6e8f81bcb4c019697cb497e482372f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QMDA62216290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102a8adafc8933725a52e7628491d58270494152e132985d7475bb96d2ae41bf. 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/QMDA62216291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bf347dc2b0a38708bfd299bdec00bd6de12694a600a499df58e6b115a27d54. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QMDA62216292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7866d20f46e7698b431f8261f848f50423fb28808a408803dbf9d611f0b6471. 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/QMDA62216293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d83fd60d50fe913874f36b2320d3c2ee0f71abe8b469562343cdfe36922b9f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMDA62216296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ed931dd8bb84c4036ffdb3e5412e16e9716d878d2ec08969aa473fff43898f. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/CH6542010839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b80ff261756a4db95415dbe03d4d4b3ce4d26a33ff179ab57f490d0fe73f8f0. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/CH6542010838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05635874c9a30343451533c38c9dac46d0db4a511aaf1c176c3711e4f02e78d0. 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/CH6542010837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31068b19045271722dbd6f6150c32a44c2ff776bc8836d15168a04f0dfba759a. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/CH6542010836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f82cfbde3b754ceeaffd525e3d6803a620b58adcee783efb2628178ec249d98. 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/CH6542010834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c6f5d6170fed9a77ee655275ea3fce6d63da3267e77b0bb4a95fb9f0c307b5. 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/CH6542010833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8ba0d6c4aa81d84bed02d48fe47554fdaeba9224d654c1a9de5063045b3381. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/CH6542010832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ba3a3d1ff88322e97f396e929f29501b5b95dccd73cafcdd05062cae78d1d0. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CH6542010831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7273dbb353fd3eb78130337eb1e0691f1753e440d6b14122354f35d9061d3584. 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/CH6542010830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82e9d97265fb0f0a742aea88d464fb8b5cb7b392e84bed19c89be14afadca8f. 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/USDY41842211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8926a23f8df3c7f3b95a999f5edf17e10cfbf75cdaa1b63b3f5694b8cb942791. 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/USDY41842212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924c04864d513feca169758423ef5fb72eded839ec0e39dcae82a729d7184aec. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USDY41842214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e34aff938313c9e5f58462928ce84b458db8e4a03b9b014360ea4a386ed8eb8. 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/CH6542379054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf6dacbc5a36977d49e3a539c6ff76c0bd3803461baea28cc5f803db82ccfbc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH6542379056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5798b6f757f8670deab26a29b31b2e053d71723c46746932e126b289b432b63. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CH6542379053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d939f3632190ba1109e7acbe8c8b9e7a922bd547f21ee883eded56d5af8a75e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/CH6542379052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd9ec88376ef9187a89c4ed0f3eb4b4d926a61a69c97d9242bf662db0cf529c. 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/CH6542379055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd55c1a051b9093350009b27084710898a40a5976b2f72d2e66533581be5366. 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/CH6542379057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d0bb049bacd204f5535dbf088747b75c529629f9a7a456209a8319b3425f9f. 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/QM6P41851888.