Kyrios or kurios () is a Greek word that is usually translated as "lord" or "master".. It is used in the Septuagint translation of the Hebrew Bible (Christian Old Testament) about 7,000 times, in part
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 0x92aea8bdd3a783516b6d2cb32ed6300910bcf386327fd756cb26970f0570a492. 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/8e7e479b-8c1c-4a1f-8f77-53ce26892313.json and https://artists.proofprofile.net/proofs/artist/8e7e479b-8c1c-4a1f-8f77-53ce26892313.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 0x571e16e475ac26e42e3d05f5a768ea6540b83edbe4a38b3921cdb37de7e3ebab. 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/QM4DW1786287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5230f076e62c983d75fc787081a0c5aacd087cf475cf34b6baf333835f37a2c. 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/QM4DW1786288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefeaedd55a090360801a573fe918b82218382fe580667c30899abe9586dcf35. 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/QM4DW1786291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58464f2f1172e55ace7e9e868dd38b29e3b6e2b414a5896ceae42eb18a07fc7d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM4DW1786292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8825a39b72e74ae7f440313e601fb452f4d191467782e1845a12a28976421f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4DW1786293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caef32132b4c95fafc3a9daa083ad3aafdb81ebadb2167aeebe0547e7ccb5e0. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:41:41Z), 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/QM4DW1786289.
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 0xb69f2593d69e1a0c89a0286a45e4aeb9553901054812bbda766df97a531f24d0. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QM4DW1786290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28f68caeb7dbc70a0ef62f12027fab8c0a516f4ae2477a275ac2a00e0f33fab. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QM4DW1786294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a58fbab3fd108bf8a492928a0ca7f84dd49bfb1fa1ee7bb761ded148b861af. 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/QZHNC2444053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc269707642682de1a26cb6963a7451d356959a91eabfce44297dea87f9a02a59. 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/QZHN72433177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff61ddd1c2eaad373e56baca1a324d693a35a284e79259d319e50ced08f398bd. 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/QZES52469447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f967ab0941978aa60a5eea94c2842f725e4e2496ad3ca1958a4aa581a5db82e. 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/QZTAU2319049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf551cefe3475f6e1d0fdc45d08f9a54707bb25368e478b777fbaf2c7e6eee4a4. 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/QZNWZ2390064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915c43f0396dddded7946803f5ad9829effb4736635a2acc86b4a608a2a81524. 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/QZK6F2320821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc634052dd9b4ce377b043ae821876925a94f596c4e3dae547012f382ce4f7b93. 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/QZK6F2320426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99db0ba4f2a5deac61708c50273e3d097f7051fc363591db06a157ddd651442c. 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/QZB4J1877198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdff025b49c5db610656ee1eff5a3f1b095d11226ec994862e7213b365f6b9c. 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/QZB4J1877200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b29dd14b6b27e6e932e9219aa76d51229a386fec8c0185963195b2b6de5a6b8. 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/QZFZ32346144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59679dd57d7ac804f48dcf7a5d03c2f890d2ed8212cfab1e2ab8047f7601a00. 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/QZTAT2269814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c1fcc65541ea1546f4309fa9e68892e57208b4fa36722d915ee4a9ad5e18b3. 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/QZPLS2276105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d68036ce1def56f99325c97db16339975d8620f2cfc14f833ceff79e9c549b. 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/QZK6F2017707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d7c39fc9ad93933b9aa94b4acb03fa8afa84a3eb436e8127c406031ec60e27. 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/QZNWU2263455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b25f7b031845f55997d1ffd4ac4b33d4fae5028dd9b8f4d37d6b13ba4fa3ed8. 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/QZK6H2292357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1264691d8ef8f2d6d798037f6ba253a5ec8f59168fb3f4f56e8c37161ce354f3. 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/QZK6H2261996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef07ee81dce390c4748559402d83f24f999abc36e5323d99fef9443f0de7637. 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/QZHN82288196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3424763c495d8d1cd1c760b9d3a8e4f47c3461f2f388d7d4f1f68a46ce85655c. 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/QZHN62269982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725fc50480ab3ddda77126cd4788a6b5ed238dab5ba0bf3d53fed657b404533. 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/QZES72205286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b9573a532945c339b964dc249adb9a56d574274a0de1119e7cd1b08f57cac1. 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/QZDA82217117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5487a84f5cba51dc99d8fd2c5dcc7db9892e523dcc4e36118e1142deaa4ed3. 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/QZDA72047227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d19016933114a1c96d4a3c9272016070ca411b2bc96d6891dea020405918600. 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/QZDA82017177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1518edd0a3dbc64cb5110706dd70f3b9f9d90458f3783d0fc1343c70a31bf7c4. 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/QZFZ32025568.