Will Magid, known professionally as Balkan Bump is an American trumpet player, producer, and ethnomusicologist based in Oakland, California. Signed to electronic producer Gramatik's label Lowtemp, Bal
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 0x9b46aa97ee19d4b02988caa48c412c58d036ace110d3c4d8ece7a2337121d5bc. 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/82c9e07b-37a8-4b45-b532-7c85544f9fcb.json and https://artists.proofprofile.net/proofs/artist/82c9e07b-37a8-4b45-b532-7c85544f9fcb.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 0xf1105dc14dd6e6afc323a44939db1f4526dae1d9567114bd367096ecff5f70e3. 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/QZ5AB2484916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e593f805d779f9bd8eaf59e4b8ce17fcc07672694d749d806a5476deb86897d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBUM92000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100ac99765311ed7891847fff7c3a93c1a4c36a5f6c0be04717f91a751556c59. 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/USA2P2266207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b347ac7e8475de1aa0d50af13dc5a4f6c3f501d007708b5ebcca63c9cf95833. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CAF5R2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1503dd06deee8fcb4289a4333a00c9b126d9bbf79f49c50b3ea9c6526b98939f. 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/QZ79W2300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1503dd06deee8fcb4289a4333a00c9b126d9bbf79f49c50b3ea9c6526b98939f. 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/QZ79W2300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb027ceb48792fb2ac91f1c503f7553e7c90166f4fd19f2c9337cec60c278b037. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/CAN112200398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71522b01b7ab72c62a6014a7f398ea8cab8ab67c2ebb66fefd7862c4fd72144. 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/USA2P2228550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81318097be4362a4307853622b90a1c7344ad09730d05c7182c184e0fbdefa5. 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/CAF5R2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b77712acf9b6851274ccb59d84bb8ec905ce2576e975d2443e3c85576fadd2. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USA2P2313494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe114d324f3c70c62fab67ec11a34b617233b9001088dc5278fd39d6c5021dbf. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USA2P2313504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b347ac7e8475de1aa0d50af13dc5a4f6c3f501d007708b5ebcca63c9cf95833. 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/CAF5R2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e593f805d779f9bd8eaf59e4b8ce17fcc07672694d749d806a5476deb86897d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBUM92000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b3344ffbfa6d32b66473d809cf83ed9850c06d7a7c0f29331867818a84721f. 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/DGA0H2494725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b3344ffbfa6d32b66473d809cf83ed9850c06d7a7c0f29331867818a84721f. 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/DGA0H2494725.