Kissa was a town of ancient Pontus on the Black Sea coast, on the road from Trapezus to Apsarus. Its site is located near Hopa (Kise) in Asiatic Turkey. References Category:Populated places in anci
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 0x19c551b6fa87999c7c05bb8ec4e14db35262989e5ec8f00d12da542cfe9fc03b. 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/a894c69e-3fcc-4fff-b9db-bbc9639abb3f.json and https://artists.proofprofile.net/proofs/artist/a894c69e-3fcc-4fff-b9db-bbc9639abb3f.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 0x955afc40074e25e40ff86d4fcde33bc5c1af4f7365eba6d9b6a85ebbe8276bda. 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/FI7S52200313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5f35aab8c4f9a667573e1be86de4746a9a865a0becae48a0fae455a58989d6. 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/FI7S52200314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779c4f43eaf6c3e207d57ea0b00e4afac7a9f9f0b5db06a71056fdc6abcc88fa. 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/FI7S52200315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05661356f5616145682cdf6f3715c1579bf21251c1623bdf715e09b43f315b2. 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/FI7S52200316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f223f72d9bbcd5a541056ebc1d457d0707cbeb407aef92b25c41f9ceb4ee6a6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FI7S52200318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f757e6bbd6cdf0c032cbe21f0f4012e5f8630c1d81dcc1c9b57f1b1f6b9f41a. 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/FI7S52200319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6022db5bccfbfe8b8a6183491a1b24aa5751b774cb30ecb821e12edceab89eec. 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/FI7S52200321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3b051dcb4ba7da244f46f18957d01ca920397436cfd05fbcc3bf59d32edb91. 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/FI7S52200317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff68a9a2bc66f4fc10a3ddd4f07aae39e3fab1ca8892f0463eae0988adf5352f. 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/FI7S52000291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8cd82dd171154c46596666593b475a46327e1bd300e3dc8160033ecadc4d63. 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/FI7S52000292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b54387256be98fd80db22e8251ba70c1bda67f8611bcf2fce1d807ea1db9b4. 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/FI7S52000293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58a3e43ccaf87b935721df98e37514533d0f920ac5bdf00c0addaaeb48708cd. 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/FI7S52000295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7240657d5292617d14158f9b1ee0824e473502f421478a8e6e3e40a2ac777357. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FI7S52000297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d8b70c447e7136a3c1e67f4ff7391a50069de28d4efbe33e4c4a88d1e6703f. 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/FI7S52000298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cc087aae04d363d578698618ccc994d68e3c27f260c87e9d1782366e1e13a8. 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/FI7S52000296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f757e6bbd6cdf0c032cbe21f0f4012e5f8630c1d81dcc1c9b57f1b1f6b9f41a. 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/FI7S52200319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955afc40074e25e40ff86d4fcde33bc5c1af4f7365eba6d9b6a85ebbe8276bda. 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/FI7S52200313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5f35aab8c4f9a667573e1be86de4746a9a865a0becae48a0fae455a58989d6. 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/FI7S52200314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0411faa8962f7cc8364c1287c39e43ca5ab27af6190e92970fccdd6f55114f43. 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/FI7S52200093.