The Kingdom may refer to: Literature The Kingdom (Cussler and Blackwood novel), a 2011 novel by Clive Cussler and Grant Blackwood The Kingdom (Carrère novel), a 2014 book by Emmanuel Carrère The Ki
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 0x0cda1943d2b82e1fa846774afbcfbcf44ea9f482e2114c55566b04a89d3f1872. 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/66c9ee97-8dfa-447f-80f1-d47a5b177b02.json and https://artists.proofprofile.net/proofs/artist/66c9ee97-8dfa-447f-80f1-d47a5b177b02.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 0xd29d96057f94ce96e9b980f7d37f148fa94f6d8e4c1b7c861dca2f9b56baccd0. 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/KRA252301967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8cea61b9c0e8f5c558b68af2fb2ccb31f9a04e0449002c2bc1b368decfbb20. 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/KRA252301970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed43c4c1d0028d9f33da0deff63a581725d5632348542c3ccff479a63dad1f6. 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/KRA252301971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393f3411bbe0c9f19db887f9d773e303dc060a4985a28b7ba6c51d0d5ee8c03c. 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/KRA252300483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e4cf9005458424a43a6e12222d2e12f068643954d1040c6fbcb387b8f54dd5. 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/KRA252300484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0cc35333d73a81f2329e4f29843edca8b539aee9bb38f4508e41e65c0669d0. 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/KRA252300485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7514d67f33e6b4135f5111225d9f5f2d429156df67f8d628489572111230bf. 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/KRA252300487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99a8ab660fdbe01eeeb3694658426332e9d9faa1184fc1269a98c50c59571f7. 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/KRA252201746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436f16762986ba2bb6d349b3cd13f7159333599c7f280243075628ab63b7e923. 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/KRA252200413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcedaad487b5dc2e1d85d03a097131b5aa2062aa742ad82e02ef7542734a1526. 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/KRA252200414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f780f4c636c06b2921a6c654f318e548299f8fd29bcb7ca29e945dde578c23b. 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/KRA252200415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2801df493fc4f4ec8a4ff1262a79b98ed5ee8fa83c3a0d68916c65b02d7790. 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/KRA252200417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a302affeb1de87a0f18d55faf89c0bc08c8260431394e50d1d0408ea749efa. 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/KRA252101881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff37d28d98e657b21bea93ec63098cc1bfc8561d414b1b8584f2fefe58c10497. 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/KRA252101882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726bfde0ec4b602c4527567271b4b47eedcc52d48a6d7e60019e1eaa0953b29b. 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/KRA252101170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ead59c394e88498488ab986e686dada2111d2f09d53e9ec236ab0cd4199e09. 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/KRA252101172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f3205ee139177652c20d2b73a435d710f7dd419300cd8416bf0e9db40ce449. 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/KRA252101173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8c4feae0ca7f63aa803de88c7d4dc172fef7d241189718a94cc57249004778. 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/KRA252201456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1551341120b484be215681f6eb4d9f1396ce5546504b7944ecaf788cf0f83adc. 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/KRA252201457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8b894d131fcc7ffabcf02b9a4a2390664c979f0b0ba3f784b35430a17cfac2. 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/KRA252201458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20244cf10a186ca8799da7dcada1ef947e803cc70d10560673ef7272217c6107. 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/KRA252401081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1275a12726b1e10fbe728fa2bac388e83dd0c4f546f17009558879c746d9e5. 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/KRA252401082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b54b66dd8eff4f23a377795bfcbac44499cb76255d90127733d05243d2a2c4e. 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/KRA252401083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1633120d5b8fe2933d727d90277f614c9311612244856ae82b9ca2c399a0600e. 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/KRA252401084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6a1a55740343a8e07ae3b13f557978b42a6db0a1a14fc93061a4f2eb46adaa. 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/KRA252401085.