Alex Burger can refer to: Alex Burger (musician), a Canadian country singer-songwriter Alex Burger (sailor), a South African sailor Alex Burger (screenwriter), n American playwright and screenwrit
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 0xa7614b0c4169b1d6ab3ccb66e39e4213eed24486e6cd967811fe49a3e89afcc6. 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/dd9f5113-5563-4360-bc79-63f000c29043.json and https://artists.proofprofile.net/proofs/artist/dd9f5113-5563-4360-bc79-63f000c29043.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 0x9906bbb16754056c86663d151b4a8d4f1a47a46b04a7f712021855993e2cbc58. 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/CAQ522040004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742e6c1fdfaa860fdbf692419ba4abd86b5f6fd34e07815b2352f6d8a4e78013. 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/CAQ522040005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cafd5bc4307f8d655a4b6e862a2ac310553b22a6693e00ff140131525604201. 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/CAQ522040002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686ee6db575bc5706f9d0d58ef605ae2f901d76ae8129f246db462711d79a649. 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/CAUY12310001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422d65084aba190fbc9f2466b03b672bc5cf2782fbfec18c156bc95c142433ed. 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/CAUY12310002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea47b362439b12d4e0821e69f02adaffa3ee59dc83ff77d60c85f7afcfcac5e2. 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/CAUY12310003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4972d54119dd48c5c28be55cdc75555fc2742247928ce5511a68aa67fe6f302. 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/CAUY12310004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376ccacb74c949acf1b1a663ac4fe939ae1718b5f3f46060723989847feac7ab. 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/CAUY12310005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9f4708d384675751f64341cc374c577dedd16422baeb83db851e42cce98b5e. 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/CAUY12310006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd815801aa964da88a097ec32605a512e95b3a78b85cf786452cfdf0e00e21ad. 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/CAUY12310007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb197e1567b57a93a4ee62235058bb0b426b18c79da49fe19f1d3fd44125b49d2. 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/CAUY12310008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc1e7890617541be5b5936f6e9d81e7829deb75ede0420649c3240d8977bfd6. 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/CAUY12310009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d52836dfb1877c470b8611e7c2c367eb14e317cdc172065f8aaca66b110fc8d. 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/CAUY12310010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08526add95940eeca51cf1f7e8940ac34a21504873f281489248e7efc3d614a0. 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/CAUY12310011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc32fdbe27eb7347f6630c2c32b351bddb013638dfbf2de73f28222e3acb5dde. 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/CAUY12000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf579105ec79c6d98dff331e11e15e0260dd662657a021fdd2b66b03c6ee30622. 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/CAUY12000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc1b79abdd05d6b6718df80e156d0dfff7847f575f7b49f4ccd4424ffa7a63c. 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/CAUY12000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a58901aa8836b304463f9269e78f749fca363c7cbae1a6bc5376496ffffa11f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAUY12000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a66f3c119c010acf845db7a25bbbaa35b292be39b5078e441a6b1cb1991c5a. 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/CAUY12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cb12aa3f30ab09ee761820da4111155aeff15e3fc87552f0084382baf7bf3a. 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/CAUY12000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa22b87164e18a2d6e1c5579285baea3f70e026b7530a2d7e4ae807a7dfcbea. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:32:42Z), 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/CAUY12000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5d35060b91ed0b552b0ef2fe49db2f5c7a2b708782f4df603aac0db61ea675. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CAUY12000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8043a728f5c3428a88fa0e8dee13e09f6301d4e60da06ea65ca800337d0ed7. 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/CAGLA2300116.