Blitz, German for "lightning", may refer to: Military uses Blitzkrieg, blitz campaign, or blitz, a type of military campaign The Blitz, the German aerial campaign against Britain in the Second World
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 0x61ef7ac991be27d0babaa99bdb80a98f378c4a83209b8bcb5c5e90ef00f3387c. 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/f8c8a0b9-a94f-4f4c-806b-afbd56ed43f9.json and https://artists.proofprofile.net/proofs/artist/f8c8a0b9-a94f-4f4c-806b-afbd56ed43f9.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 0x96fa4a4c473bc073ccca336034ead96f020ee44235af0e3fc0c2a3400d05552d. 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/SE5W32201132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3b4ea75c5b5e59c35b3fb2da5ee4c9eafc19f005cc8e137870bea63e35a479. 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/SE5W32201133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aeb6bd191f62221cd7f9591472fca0ce59efcaf8001c35bbc9e47072a58f9fb. 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/SE5W32201134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccfb0a75435b475c362492143f2d31e66fa713b1a2f6fd23c22c05fe1da2300. 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/SE5W32201135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e44663158d5e80223b1985068fc08ccdc2c9fad559a3eb2fa849477b765b314. 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/SE5W32103249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58ea777547af6d72e7754f8fbc62d2cb5b8f51368005fbace76b6740d6d2c49. 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/SE5W32103252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cc8209a456da8f866d7b1c2164674de5429540e642b556592805fbb8f4f348. 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/SE5W32102650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d5011192dcbc7de6acc0e17d37ea9485c23e997fcf9a07cabb3acd8fe629ad. 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/SE5W32102651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55396022747ec229b910fda68c9e7160753d4ab4dbac54d8b4625f00eb520df6. 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/SE5W32102652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0c572ea7792ededc8eaab62403516b580bc33f1e5623be7bdf8d9a783abc08. 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/SE5W32102653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ceb367eda68d45a57590130ec4a70a49f68fd0073ba650bacb1e25818680f72. 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/SE5W32101686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5de8c14598a85135a9d0e545736eea77a7132723bf0a0b479b83322513a21d. 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/SE5W32101687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6006f3c20004ae7846de2e0dcf74eed9c3a880359f11f6edb64d056766562cf3. 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/SE5W32101688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27738396205be008d696bdedb1dff2e5b248c9e17a2f764603ca5d890cf410ac. 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/SE5W32101689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8250456d45f24831ab35074485faa101143c1b3f76d8587b1a05ac89f4907e43. 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/SE5W32100705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705ff26348ecf7272a0623480152a815d40b283ba8c84ba4ebc80d5eedcb3041. 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/SE5W32100706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567b8466022da1721d2a0662fd999458a18ddc862299bb285d9b305d9e4d2422. 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/SE5W32100707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85015396e1f453433b12b9c797cee19d41faa778bde76af0c76b0507c50331ae. 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/SE5W32100708.