Fortis may refer to: Business Fortis (Swiss watchmaker), a Swiss watch company Fortis Films, an American film and television production company founded by actress and producer Sandra Bullock For
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 0x977c35c6a7aa0808005328d977b530707bf10faaa866e2a57c2cf95b17899956. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32a3f66d-2318-49a6-8769-83d684a21ff3.json and https://artists.proofprofile.net/proofs/artist/32a3f66d-2318-49a6-8769-83d684a21ff3.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 0xc95f4d4551658602bcb54b508459f2dec80f8e04307503d9c000b70d7c476b18. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DELJ81516183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021ae906d1e61314a8a8b7332ffedc64398b3cb53251e54b497d17d83b01d6c5. 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/DELJ81519300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb65d7dc5c3ab01546a39d8ef58de8a983cbcf192a51c3510081cb954b34f0a9. 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/SE3OH1518497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67597783c6970fa7dbb4351fad394a216ee42f93313317020e71dd287b3751ec. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:24:14Z), 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/SE3OH1518498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3940ad03f03cf7ecd6531d6464e0063bb82792f5faec7bcfcd4936d718e390b7. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:39:11Z), 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/SE3OH1700907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b685a5c37e26763ec79d356652638328d4db86ac2c32ef5cc47851a24e6133. 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/SE3OH1628402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836b6ea6882ded65ac215706add9f3ad6f4b42a803f932063b57bf10c171b6ba. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:54:42Z), 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/SE3OH1628403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d00488e199f87232c1ffc8d5ac9da2dcd8d247d2dbf14b69284b37ac47f583. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLS6R1837981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4707eccdddbfe48d075eb27d9a5fc19a2288af483d74303fa022fa3e443220a2. 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/GBJX32055006.