Neferkare Shabaka, or Shabako (Meroitic: 𐦰𐦲𐦡𐦐𐦲 (sha-ba-ka), Egyptian: 𓆷𓃞𓂓 šꜣ bꜣ kꜣ, Assyrian: 50px Ša-ba-ku-u, Šabakû H. D. Baker, R. Mattila, s.v. "Šabakû," in: Baker, Heather D., ed., The Prosopogra
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3c4d855e15457b8709b4f459b30bc150c53b3ef8c962dc3ecd864334436625. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cb9f06a-91c4-489d-9e53-b2fd863e5ce5.json and https://artists.proofprofile.net/proofs/artist/7cb9f06a-91c4-489d-9e53-b2fd863e5ce5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ea5e45df62595dbaae4f1e3f14cd305aebdcc0865741ca3222711f015feaa6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUM72401899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9622412b7f0265c4fb482cad5eb3e1112a4fa45261b0f04090ecc97c603499. 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/USUM72206241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702cfc76cd87fefe5deb2508751f09fa23fe2309abcb902fdfa98dece5d38440. 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/BC7772300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec995f743edc1dc6087a9862bae4c962a4641d97c911461a9285e270fede5be. 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/BC7772300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec995f743edc1dc6087a9862bae4c962a4641d97c911461a9285e270fede5be. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BC7772300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd711293d6e69aad81f9cb09b5125fd38b594aa05ff0d4dc72e8e2a61a3220661. 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/GBMEF1701022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae690c8e3999bb8e5c70a5cd9bb44b1f5f8b1b53799f58a453853127e262407. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM84B1822007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c3e681c83e2297d931972b77c0c30c962e3d75984e4178d4457b960248b8f0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM84B1822008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5e840d159a07bd42ae8258a9443eca225b400c5d0b758816f37314801016b0. 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/QM84B1822009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2b8d162893b59819eafd4f5851f7e55c639e273c123226d500dcdf827b0c43. 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/QM84B1822010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd30ddcfdcaa72eea41234e7daa16264722f76308d1078fb0fc5583bba14acb6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM84B1822011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2702370c85755d802c4e23327b9b1e6d25150a08c6535bdfcf002516a1631e. 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/US7MN1901601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13c5dcc4c179a7183744dfae614ac5332e847ce40ac6bc03b2686624aaf7087. 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/US7MN1901608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0d2933394ad621951e63966fa9935c1f479f5b37cb2e728e54accb0e2f391e. 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/GBUM72001116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5848e5d1a9f65ea6d42162949fb3e5c86464f0b874f55efd4f061d999684ed5d. 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/DEZ651709761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e105ef3d0688a5dfc4ff66c92bcc12d0cf32c129bfd66b1e7f437c27dbfa77f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GX2432100014.
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