Pita ( or ; ; ) or pitta (British English), also known as Arabic bread, Arab bread (), Syrian bread, Lebanese bread, and pide (Turkish) is a family of yeast-leavened round flatbreads baked from wheat
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 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 0x2040cccab7a468a49bbd1c4ce6a3b79567cce66f7b733fb6d0d6510ccbbd5c67. 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/5723d69f-8042-4417-a55d-c878b298101f.json and https://artists.proofprofile.net/proofs/artist/5723d69f-8042-4417-a55d-c878b298101f.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 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 0x3e1b1aa4e4335171a3d5acce2ed92bf3c727fdff0b0e9a9e2975311952d8172e. 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/QM6MZ2401966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4442b71c572123ee7f9c517ef4e1987272af635ddbb8743fce046e020b97030. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QM6MZ2401970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb82916c17ac3b36d7c30813557edb0a7f22d3e62ef9086caa3dfb13cca028b7. 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/QM6MZ2401971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95afb64841e8bb1fa758020669cb0ba2c41103ea45f40c7c22487561d4cff2e3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZMEN2005113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574649b2581b89a434453f92a069d0642b4406f92f5523754232a635a000f837. 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/QZMEN2005114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ba72df3e1b6757bbd2c24f818c394d837d2980a687ea8a71298bc33bc4620d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZMEN2005115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8369d5de235df3916b77b144b9f0e4a81b204695a3c7e5d7d53726330a7ab78. 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/QZMEN2005116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f6a38f4cdcc56b44a0e3bb4e0421ea4b93bb108a86d62f6f7a1474eac92212. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZMEN2005117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541114a41957308e5d9f66673994f14a4fc6096d5a4e775a723ef730888739f2. 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/QZMEN2005118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac1a592eecc7c9cfa03bf6a98d90b91389286a3e5d34d1f61ce5422f2399d9d. 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/QZMEN2005119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1157c59a85d7de58b7ae46e13a60b98ebb5b3854440932a9ed6cd71d762dc3ae. 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/QZMEN2005120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f48b8c9378014115617b0c09ced98d8f11e2c679c023ef6401723f57f2c3bc. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZMEN2005121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36932c1ca16c3e3abd24aa8fd25278734ef7c7116a12ce47077f1f5c12df62f0. 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/QZMEN2005122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1081855dbbd605ca1be0ddd9e5e503ac537be08bd2c0ebbc4c7344c4dcf68c9e. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZMEN2005123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfc9d89cddaa6851e63f51b11552a275b3cdb36cdff87370e38d8d19977172b. 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/QZMEN2005124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6ae7a92b86bc7ddc5a4d9b2e956482d1ca73f090e1a030eac3bbb22329f3a9. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZMEN2005125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba962ce43872382d3675830475d15b610e10d674cace2e7ce86db7f49705710. 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/QZMEN2005126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46512082ea57fa9b6922cbaca8efef9d7bb8a45369ebf07d7bd9901cc2eddbf1. 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/QZMEN2005127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b1661f32e56971dfd2b5dd18689640be76e223ace7110aeb60882905517b7c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM7282463364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b21dd4d3c200804c7bfe640ea1c1b37fb237763542e932fa012f5026c715194. 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/ZA56E2305197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd790a39df661c64cdc78c80f9e925d868777c32f33e62f1a934d473d72c2696. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZA56E2305452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b65b2a5a0b949a39f94ae35b92d303fb8066315b787502895124e676b9c0427. 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/TCAFC2091121.