Jakob Bro (born April 11, 1978) is a Danish guitarist and composer. He has released 20 albums as a bandleader and became a renowned artist on the international jazz scene after recording and touring
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 0x57b7247d24fb3202c99e673b7c957fb6e3f8edbd890a57f2715758eafea27692. 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/4458c1a9-e905-4b1a-b1c1-c3787a953dcc.json and https://artists.proofprofile.net/proofs/artist/4458c1a9-e905-4b1a-b1c1-c3787a953dcc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Red Hook (Live At The Jazz Standard, New York / 2017)
Mild - Live At The Jazz Standard, New York / 2017
Bay Of Rainbows (Live At The Jazz Standard, New York / 2017)
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 0x77192599e4a062a9371226d3d034b85292cd2c0ce165bde0d60484bbac202833. 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/DEB331661801.
Red Hook - Live At The Jazz Standard, New York / 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc2e36754d5b66116ece1f792718b6774de39f14be091e28b27e53a22c545b6. 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/DEB331661802.
Copenhagen - Live At The Jazz Standard, New York / 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5fe9d0a5dcaf68563c9dc1f1e8ea401e12692f0f983a8d0378e56ff5b662be. 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/DEB331661803.
Evening Song - Live At The Jazz Standard, New York / 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eaafd566c8db4f3652a8fa76cccf5b96e6df07d6197920455940cbbf1292a8a. 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/DEB331661805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e29050460cb63bdd81f775fa1fa6801a72f8c0d7260efe0c03928c5fe980746. 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/DEB331549901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eef782af12544b73638c1a6050cdad67d14592002be38828d017709a2a65ef4. 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/DEB331549902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c49f39702d4391641dfd7dcd009240c7b18d78fd20fa8d5b9ac0726029f51fd. 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/DEB331549903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ca0fdd3af605d0cdd8e027fdfface133c2ac929d9d3fa49fc709d1ff927a1c. 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/DEB331549904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54664fb25c6113a12d13baef49506c5883424250ce834cf07e19d130050b2c0d. 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/DEB331549905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe23313269fff8229e24dbd9e519ee59c87b77a72dcdc8b838d239a4e8c4900. 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/DEB331549906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd475282a1a5f3fada8ce54793a57846797b830865d9a6c2e31b3740629ae6ab2. 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/DEB331338101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8ff2bf5c04a3046cf719e7fc7e92b2a712e6ccc77310debfd6fef06af1c50b. 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/DEB331338102.
And They All Came Marching Out Of The Woods
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d591e14b8722e16739ae1310fa5727af82733fe9a056ca02716c629d1d8af4. 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/DEB331338103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adca08334ff359dacd44911084d520161b0307b5e07e7ebbec9a6a26b756241. 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/DEB331338104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bc494d9b0e626f600ac218795440ec451d86c814038d0086d2325acd4fa452. 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/DEB331338105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35e8b38c2e13ced1d44901200743f820ded3966f4c6b97aed4e28c1700f275c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEB331338106.