Jon Spencer (born February 5, 1965) is an American singer, guitarist, and bandleader known for his work in the noise- and garage-rock scenes with Pussy Galore, Boss Hog, and especially Jon Spencer Blu
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 0x49c692833e114f693ce9018e6318da73749e6e8f912b2cd405f342f959dd6a5a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/003dd058-0ee5-44ce-a159-30e2773c3c44.json and https://artists.proofprofile.net/proofs/artist/003dd058-0ee5-44ce-a159-30e2773c3c44.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 0x9adb84f398c036b9ffd8594873fa87ee8b321b74a23cd7d0bd1c166981bf0b1a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA3D1832901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150364494b020bbeee62e01e84214e47d18f38164664b9a1711988f2975f08c4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA3D1832902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768dd7c3264a42e15b69aa6726db97bc0a438e7d4f0f671dcf4535537291fe4f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USA3D1832903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f82d1fea1e1bc482446d4dd3f7b3a8888ebd81f2a82969f98367a83f8b1ea5c. 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/USA3D1832906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ec6fa654e5743b2cc31c6fc0258e290a0f4d4700bf5a3ac1e23adc291357ac. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USA3D1832910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1b7b47f454fa53abbe6236c67ca4dd0befa0a5f09aac6b3ec9c2379b7cbf51. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/GBSAL2454323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4120285153d1e89dedd89c55e9c85d046e3805adf7006cae2e05a303f3abf0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBSAL2454324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b9b781fe4957885b97943e947f8f1f141b7254847b21c1b01be42857a57992. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:04:04Z), 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/GBSAL2454325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074e49591747bd5f345411d2320b312d28335c8d3b2e3217c62fde04158cbca1. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/GBSAL2454326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1bc614c5d03590e5456067b25eafd5d575e38154d2c1f201f436f697997d6c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:39:13Z), 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/GBSAL2454327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35427e62aaacc0a6150d461aca8263eb3a87e8796583737b230f6101139d5253. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBSAL2454328.
Everything Is Under Control - The Qemists Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c762a5a08a80f59b81c94a837726ce922ad9813fa1459f8d801dbc977d6b3c3. 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/GBCFB0600040.
Everything Is Under Control - DJ Kentaro remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515417fbc7522843b8202ddfddc6dc0a3aef4dcf7f52afbf05f284d154400e25. 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/GBCFB0600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f709cf9a936c03c59bcc015938cd9dd7b893cb320d9ad07ca750880bfe434b. 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/GBCFB0502800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f39f83606dd7c69222bfd4bd17c5c6fdf5a31a879e540ed2c34805a259073de. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/GBARA0000025.
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