Esna ( , or ; Snē from tꜣ-snt;Werner Vycichl, Dictionnaire étymologique de la langue copte (Louvain, 1983) LatópolisStrabo xvii. pp. 812, 817 or (Pólis Látōn)Ptol. iv. 5. § 71 or (Lattōn);Hieroc
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 0xe653de94f12736a975ab44afe4ef360c62e88164d80fda3890cd3ac731a6877e. 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/b46c0fcd-83a7-4267-934d-6b9d9f35cd78.json and https://artists.proofprofile.net/proofs/artist/b46c0fcd-83a7-4267-934d-6b9d9f35cd78.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 0x0eef2d0d508ccd11f1113ad973bd37f39120d7f246c47f3239779598d0f2ccd3. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:52:41Z), 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/QZEKE2014265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9727166d39aadac9d944dab6576bbb4badc413429cac7f1bd7ae06aa86693d5b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:11:45Z), 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/KRA252100568.
Love (ft. Marriage and Divorce) 3 part 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57804d6145df523f2fd7c268eec6ef9e2a45cbc3d1643e5ba35c2828e571272. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/KSA002101484.
Unicorn (Original Television Soundtrack), Pt.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466fba9bbab46f06d2cac385bc5c47c364752d573876b7d7051e23b820a9a732. 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/USQY51737262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2eed1f21bf29d6df6619bc54136311240c20abb3024ce1ce9882dadbdc4684. 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/USQY51737263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644a051e2b23835e8a1d7d2f035a3cb21c07013e362f29c9cc0d4b03a0d644cb. 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/KRA381701836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f3b06c6e08cfeaaf6695f148bf062a261c8fa20229574a15d6cc147376c481. 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/KRA381205854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9edd832142edbe8e48a8a81dc7fef356faf73d4f375413f8289d241704658d0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRA661400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f6585c6abffdd1c4ca1d0b16fc2a93e8d623ce01b06a34ee4d2de0bfca125a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:01:00Z), 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/USQY51737264.
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 0x5c2a48d5eba32e074cd3d8b183ef55b46c8b1b3d3e7b33cca2cf89f0086d8840. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/HKI491800093.