Jakob may refer to: People Jakob (given name), including a list of people with the name Jakob (surname), including a list of people with the name Other Jakob (band), a New Zealand band, and the ti
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 0xf9f7d5730ede56be61d47e3b6e30b87d6065404fb835db95b2d56dc48faa99b8. 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/1348ce0e-a6aa-4b19-bc00-e466aed2c6b2.json and https://artists.proofprofile.net/proofs/artist/1348ce0e-a6aa-4b19-bc00-e466aed2c6b2.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 0x4d6c329bb32ec6b68f62c317a05da806b17e310c5b6546adfeb62ea05296827c. 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/NOPGM1908010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b424cedf7190e16589928de9395bd9257ef9598fd7a96206d63873470d602f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NOPGM1908020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e7ddcfc40a970740017c920dde79c0f5abbff181efba3cee3e58703bd68679. 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/NOPGM1908030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bf111975f6437ea706546b084a5daadf0f504c0549c90e2c5eeecbc314eaf7. 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/NOPGM1900401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d5b3867237024dc461c4c0a3db1b10e2f5d48837619239d75e14a72e7c25e6. 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/NOPGM1800501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc2f26469e5e50bb507cbec5072ba4ae0de15fc68e34ade003ac49bdc95c61b. 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/NOPGM1800502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d924cd85e93f83474fd7f6011c0fceccd5d792a3b7c77a5defc997792b6b5c8. 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/NOPGM1800201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631650fb09de98396c5916a8fc681cfdd92cd61f9bb45a109878d52056ee2a02. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOPGM1700601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b9db7b3818ccfce6b253d4f4e17a11f7c8db02c3971bfbfe6b21d6e690c8c6. 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/NOPGM1700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb4ca3ee33316ed65ad1b5b94132602b3f6fac2ec14d13074025ec4b2c195f5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOPGM1700602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b562a4dd5db60580993d9997ba0eaa8793364e7ac8e9d6d28b9330c042c8472. 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/NOPGM1700603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e3a38e6b4d4dd52f1f454e4a8d2117c6c9a3ef99ad5a5089b38ef04fb45821. 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/NOPGM1700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49df07c5646c268ed5aada99015c1937308b44859572983e037d9df753c7afe. 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/NOPGM1700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedde2cebb7a4da400498bca6bbcca19d9d64321a1ef8083eaa6a54c68abd7adc. 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/NOCTN1545010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f491ad81f9dcc2ca26cb40bfd21bf193a666662745a6eacc158ef349950d605. 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/NOPGM2505010.