Horus (), also known as Heru, Har, Her, or Hor () Ϩⲱⲣ (Coptic), in Ancient Egyptian, is one of the most significant ancient Egyptian deities who served many functions, most notably as the god of kings
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 0x2c81ca56ff74310fb48e5d05f89b2b71b859756842c9cf096cc9f33d5c8a0403. 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/fe8a2829-14f9-40ad-a562-218bb602754f.json and https://artists.proofprofile.net/proofs/artist/fe8a2829-14f9-40ad-a562-218bb602754f.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 0x809ced6dc22aa20fc9b9fe60d2bcecdb82e8f3ea111dd0e4c6f5cad2325ed965. 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/QZNJX2083284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006aac86338aa9dba07a8a1644522a9796ab82c7d3c8e866771a7ea948292613. 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/QZHZ32295701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006aac86338aa9dba07a8a1644522a9796ab82c7d3c8e866771a7ea948292613. 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/QZHZ32295701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ff8d2b5094ddeea1a88632099aa6a2549def4f5b85aaff67b51f7838997ba9. 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/QZGLS2472523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ff8d2b5094ddeea1a88632099aa6a2549def4f5b85aaff67b51f7838997ba9. 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/QZGLS2472523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea3361571069dff2cd2dff5aee52db7e3073220d31339b8bcaae19074df7187. 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/QZW9K2291807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6f475378629364eddf97f28df37e6cf18b9289479b5ed60f33074b4a6a0a26. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZNJY2153524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc5cf9fe2dbc8d3830054395fc085025224f5873dfcb53c8729e7e0c91b6839. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/RUA1H1913396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf6d4ce3732c503afa004811f9680ee9378e36ae041931b121069af0e160ad6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRX202019822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f69a86d159924ab8c23218c146629b618e967b63d06d709c0f42881b821be7d. 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/FRX282432999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb994b82fde09266b9c12cf34e341fa522b964bbc8256e359fea87ddf64ff6e0. 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/DGA062329612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5575513f3795e44810d628e42aabbe881809874743407150e5f9f087255d8068. 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/QZMZ92171022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd97576f1859f12fedbf0465f4939f421d655cadf7f1e456ac54aba42654ad3. 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/US7VG2480564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00972816b0d5a2a8f7e9d04bc7894baf5a57a1b3ab196c5a140874e16cf4469b. 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/ES71G2204956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b06e0f39fc0eb48d2d6bcb4c626d6624dfcb1a10fae487c5cdb05781d53d261. 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/QZNJZ2337541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4898c281d7b32b41fa214d684a25102d9286333197cf8a075df29d7948e9110e. 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/TCAGB2294187.