Joseph Hill may refer to: Joseph Hill (lexicographer) (1625–1707), English clergyman, academic and lexicographer Joseph Hill (violin maker) (1715–1784), British violin maker Joseph Adna Hill (1860–
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 0xe40a317e2f37fd93c96f784a6872718f76174de09569c55e06ae9cb821fc1844. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/901ac05a-e8a1-4867-8fd0-d9f720baf2fb.json and https://artists.proofprofile.net/proofs/artist/901ac05a-e8a1-4867-8fd0-d9f720baf2fb.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 0x85406c5ced35e789b49f02d18ad9c427cca0aff7a3e6fd30431bdba1a94a1bfd. 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/QM4TW1641943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1154cbb4c5fb7c255e2e0f128b3397ee3f4c64086d6565e675f3b6ca4180bf. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QM4TW1641944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba02b0d02e48357098d109629fe47ebe0db59dfdadd62753d949a96569eb4af6. 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/QM4TW1641945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a910e8f98ca310a102f36734dde1ff70bba4bf6b6fad380a908c14afde311f. 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/QM4TW1641946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de223a70bf1023bdaece9faf18068f951bc580c43533bede98dd70cf379b439. 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/QM4TW1641947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4545bcf1416cfc15e124604f519410e0a27b9e7ec4bf61e04612c90c95bf69. 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/QM4TW1641948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60619485aa949e112ee263936e12756f9eee3be75d5862c2de2fe14582140a11. 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/QM4TW1641949.
Tell Me Where You Get It - Original Dub Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0039f848256e1689821fac0b0e29012e233405014e9c59d86d5edd53ee86ddb0. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QM4TW1641950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea4257c63b4c3c10ca109ea7ad10809e90e827b870e5834065649339291c77d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QM4TW1641951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701769682a5f02a620ed5be4eba3fdd72a711c3339fc48dac8f5b1004481e2e3. 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/QM4TW1641952.
Two Sevens Clash - Dub Version 2002 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f492ce4e7052babbdb8960ebf93b10cfe5cdb3af9efb0254cfa4ad2661a756. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QM4TW1641953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2de1b20070745c9286b1ea7700d97d32fbc1322540c9035d85c547c7007cc8. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/QM4TW1641954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6d549c8a1e4d62211700ff1c92e6da3f0cdd4eade8b10b2017844d96956220. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QM4TW1641955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32efeadf0a80bbfe579c1a39820e0719088a5b7d61df3f2b1f8b67f3714187de. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QM4TW1641956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12eba2ae3eb19b2e1f451e0814f25188e8f43b4fcccaf3c53c8b590b4b42b1f5. 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/GBHWT0500015.