Jasper Høiby (born 10 May 1977) is a Danish jazz bass player known for his virtuosity and high-energy eloquence.Fordham, John "Phronesis review – they're a killer live band" The Guardian 13 June 2016
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 0x3f7f1d777684b7381c348c1780d1a381278a35b3335835d72f062f1b7a3df4a7. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c29b810-d9c1-4c80-ac97-52e77e77d944.json and https://artists.proofprofile.net/proofs/artist/6c29b810-d9c1-4c80-ac97-52e77e77d944.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 0x9a8e10845fdb42bf1113ba95e19f69c2310947b1a8e9ede2a4e8cae1c0cafb59. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBVEV2400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455d572b005132d99a24f5aab566bbe7f26dd077aceb8acd0a4b8e42ec34683e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GBVEV2400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8e10845fdb42bf1113ba95e19f69c2310947b1a8e9ede2a4e8cae1c0cafb59. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBVEV2400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48f114878a4f26b714a47ccfeea9196246aa233209b8f12714bef81b9b08467. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:43:49Z), 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/GBVEV2595241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8796639fb1e08c18377c58a204e9e6679e939ec15a1325de3a3c41f4344e583. 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/GBVEV1700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203c74ff90f6c1258663b669c0e9b1634939a334c822188d59dc7bf963cc3c13. 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/GBVEV1700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8fba580ecda2163a3f0c5c1220951c335c90aa36414ef063f8a51cfea98412. 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/GBVEV1700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b97bfd61d812ad6b14c2dd2d2b004ff8af787eda1076934e1b7498f1f1ef1f. 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/GBVEV1700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e70fdc7f2380cc27137b82389a4a754b7b52104678e06fcab4119f591c4f6b3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBVEV1700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f570f0c41e0fa0e3531c532a0d992156d3f27fa483b971376d1953dc966d42. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBVEV1700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e271ed3d36e788240d8464a0c2da967f2526e0ec145263ab89b574d440de33. 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/GBVEV1700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ef17c2c185aa953ca411b1a29aec72ffbe66fde25adc55a8184fb6834ba45a. 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/GBVEV1400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2782e0838ed00bdef6fccc77d183725eac895b0554872fdb948b8f3fd8412e71. 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/GBVEV1400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2f59912dd31485d3cd53a27ddf12a1a1c3f382824fd6518dba340849e4b081. 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/GBVEV1400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb743eea73cb44322fa81e6d5df786b5f8931fd10bbc2c34a9bb19605fdfd22a9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBVEV1700063.
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 0x21deaecc824d2b263c23b395c0d8a45195223a9374eec5a4cc3aa222e6881c23. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBVEV1700068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad51b0a2775fc81b51c8a75a6bfd3758596d7cd7364447cbeb9b676311db0830. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBVEV1700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a36b79cb6620d11c066a56ace63ff41b54283173dac07059f799fbd9200256c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBVEV1400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653e06e016531201e2901d7316f1b8e3d4ffba6355ef1ed28865de0b3ce4265e. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/GBVEV1400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5f4f246918f70c0d34dfa111ce6770e1e08528f4cabeb9c1dd9af7ac557dc2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBVEV1400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7e429098bcb196f2d9f20e09f04c9e8bc6382af553ec53b06de9eec98e7a41. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBVEV1400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0f4c1b14e4e30db6391b60d705ba25060f13b6805115a10c3dad76e1ed83e4. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBVEV1400027.