A ewe is a female sheep. Ewe or EWE may also refer to: Culture Ewe people, an ethnic group in the Eastern parts of Ghana, Benin and Togo Ewe language Ewe music Geography Isle of Ewe, an island
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 0x7cb636386a62bf026b15942d37f4e8a8d6919583d4bc6263811aabe30e4002af. 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/b53d066b-d649-4193-a703-ea052521fd95.json and https://artists.proofprofile.net/proofs/artist/b53d066b-d649-4193-a703-ea052521fd95.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 0x3fd0be55f459a693689874ca7b8052e57851f6f93b56b9abd0d3d2fb01ba6f10. 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/TCJPE1618550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd0be55f459a693689874ca7b8052e57851f6f93b56b9abd0d3d2fb01ba6f10. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPE1618550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59776a279159e6aaf99b5139f9365cc99f7b347fbb5f524ccb6676718a2ccc1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPG1720380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fbd978fecad273109711a4cd4bd37ea6aeed45d9f0a25607c4ef667954f8d7. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCJPQ2116717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606e5ccf818125e936f31a0bf0fa1fba341297c8dc6f54b8e2a7f964c9653082. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/TCJPQ2116737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa068d0edd80c43963093a4354e617d1dbd7caa5d25d18571c43928edc4e53d46. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPQ2116739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1beaa7f607c47d8a30cd47fcea2ec32c9b32476a374ec7236ea58c14e96956. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPQ2116759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578e2a417113f3b156a3f55cf1ee3b00b8743d465ec777584627cec6b43fa2c9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPG1855710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b91ace50a673f6467eb3b54f6f731bdfbe436198e2fde35d2c088bfa9521b64. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCJPG1884207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80386b294f09e82eaa2c9e0fcfffaa37c7617b2c2283da572a664a20ca6ac372. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/TCJPX2327841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ab846757b1538b92fd2dedf63fdebfbf138f7b3bce613d5b9ed35f1f83ab49. 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/JPB601802066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323a22a5dc5e903304a444d713aa1ad5ce9db5aa24038342623496b4a79d33ba. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/TCJPF1797630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8eb5a0df22a9dbcb9e4742078a227683377e1f7cc50aef58f63f40ea44578ad. 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/TCJPF1797631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e7b0d951bfd998a41cfbb9a6f299db9e46797f84fb4cf181444860b2023d84. 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/TCJPF1797634.