William Joseph may refer to: William Joseph (governor), colonial governor of Maryland William Joseph (musician), American pianist and recording artist William Joseph (American football), American foo
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 0x3100b60e05eec19fded7c3d165142f071df692134d1d609c4db992e18b0312bf. 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/aa6c8dc8-5618-4f8e-a8b4-6efb4bc2e2d7.json and https://artists.proofprofile.net/proofs/artist/aa6c8dc8-5618-4f8e-a8b4-6efb4bc2e2d7.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 0xd1122c9612b1e955309f3b26d1549079031446f683c37a6b47ea23ad84f7c63a. 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/USRE10400930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b878dba48d654d9c0eb0f91037857fc913952182990bc18536d1f8cfa1f3a09. 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/USRE10400931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee7faf60f2d4e4aaadfc4e75c8ed01f5d37291463ed6cceaaeb3cdeedc0e03d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRE10400932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af28077bdae157ebbc66bd28a4cae4b127651a5ceef9629f861295c6e162bba. 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/USRE10400933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5e38b833b636be3528a9c344fa2e77036f727262c96ae27df17767f1c6f626. 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/USRE10400934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f29cfd35e57615db733179e65131c07c93280baa9be4ea9dd8e9f6fc5186824. 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/USRE10400935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb620abe174535e35a03c85f263ff73ecf85b3667025398d242c5c4beafce4b5e. 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/USRE10400936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894400b15e8bec754d44e77e50d431f51ef5315bae57bdb673711f4531fe623b. 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/USRE10400937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61190b7ed711113d1362db5a18afa4daf80ed7996c538b3c5050549b6e95f7e. 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/USRE10400938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97eadd738f01ec40c32fe8357a80b6a5759102415d5e57fe1524a8164dbc15d0. 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/USRE10400939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771a4d5d5444361c815dd6e0a6c8635390c71168f44ca4459594cc2327cba8aa. 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/USRE10400940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e2dc3400a6e44e15cb90d70bfd6a295378de39606158697510efe9a5fdc60e. 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/QZVR22400226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e2dc3400a6e44e15cb90d70bfd6a295378de39606158697510efe9a5fdc60e. 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/QZVR22400226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f9ab60a269a1d4b04ba28722ad6e8395219c5a1f0b364766082aefba5c5f6e. 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/USRE10800423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f9ab60a269a1d4b04ba28722ad6e8395219c5a1f0b364766082aefba5c5f6e. 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/USRE10800423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f9ab60a269a1d4b04ba28722ad6e8395219c5a1f0b364766082aefba5c5f6e. 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/USRE10800423.