Isma is an IndomalayanSeitz, A., 1912-1927. Die Indo-Australien Tagfalter Grossschmetterlinge Erde 9 genus of grass skippers in the family Hesperiidae. Species Listed alphabetically:Isma, funet.fi I
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 0x028d433bd806d8a54401e15ac794628ca152a61fbe66d01983f3f95e5a0692ed. 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/67cd8e1d-bcd0-4907-85c5-0f1c789bd76d.json and https://artists.proofprofile.net/proofs/artist/67cd8e1d-bcd0-4907-85c5-0f1c789bd76d.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 0x94c434e96c84362663b692e7f756e541cb3a2156e0b16e00877d672448757397. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZTVM2484810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8029134fd6cd721c5abea0f783203d2f88c8fcd40cc4eed0e0523c60783c04c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZW9K2419194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d832ff717a403b9285d0a35109fc5bb2c71af5956b60c9bbb391a6528547f5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZW9K2419195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d2dc1f59a30f58bf1174a29ccd6748d1710d5e3c3f5449dab4fbbd4cc6c84a. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZW9K2419196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee437db0edced764c2879aacc0bd17bd0776ccde5fa6a964f2569c43c904e3f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:00Z), 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/QZW9K2419197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0302654f08d32f2212eaecc556916b2f74669b38b7f61b43764767d75a55b38b. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZNJZ2404893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e5eb0cce013b88f88f53bbfce43f2fbc4f01cc18974aba32c061d9e527fead. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZW9K2419199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc36881eae0daa7579cc3d7a66d4c096354ccf8a9cdc6a618d0fc2831310354. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:57:15Z), 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/QZTVM2403601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1a826a5966a3487ac1321d19f5238c4e1aeb0e4f320cc42277e5bf06821f3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:59:02Z), 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/QZW9K2419200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c807e15aae020aa5d41914b19b149a5df1796d685643ca09ddebb3ebfd4c7a6. 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/US7VG2557821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e24095fc104ed098fd58f966cad981209c685ced2741c68ce684726f4048aa. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US7VG2557822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb278f9760dfd98fdad1897d58b39258ac53f7211dbd644fa0cb33dd4d1482f75. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US7VG2557823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bd9d9e5dfe714fc59eb4756cb9a0e261093a735ab4ac78a68c58e340b36fb0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US7VG2507402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57890391a79dcd4c546a1c08e40e980e3768f4efa1abcb5f71ba656e3029b2c8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US7VG2557824.