Jon Christensen may refer to: Jon Christensen (musician) (1943–2020), Norwegian jazz drummer Jon Christensen (journalist) (born 1960), American freelance journalist Jon Christensen (politician) (b
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 0x0701aa186bf07d3c47b5a65a1308568f93f35685092ecabd3d5b9fd0aee21970. 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/3c2e0eb5-b100-4225-8a45-48d59a77364b.json and https://artists.proofprofile.net/proofs/artist/3c2e0eb5-b100-4225-8a45-48d59a77364b.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 0x463e8c168e7d135a1f1eb0560bfaaa943cb56675037cb79ab07c98fc01e162d6. 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/DEB339351601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb96205138929b96ae8abaa1719b879a9e3b6e6f72a37323ac94623d7fa8840e. 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/DEB339351602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdd3bb7513114a30ca7b17898682fa06f7b991566310b744dc77028c9009367. 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/DEB339351603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949b7c4a3e8f87fdf004b4d02200373095047b1004fbe6913ea32218423d40c3. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DEB339351604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98074d1579a933dfd5fca1ad3bcb1e19b550bac537080925553d4b8bb5cb247c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEB339351605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d25a3d548fd5eeaaa16fc30097fd0229abadde4d4a428cbc22f04dd12290e8. 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/DEB339351606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49dba90f6a15601ef7df4c6d2983b701bae968600063e8dfe8f9df83581314a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEB339351607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ab5df233b720e0618cb6b90535117e661356eb65dc06beb6725c307ab24719. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEB339351608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92df52473ab5c7747985490d9d9be8c398e92faa585dc0f274b7a1faeb109fa8. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEB337101201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4e4362edcc2a27b8ab93c9733b5f0be5fcce82aa4a41288b397170dcf4c518. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEB337101202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ec9bb8243af784f2dc7730ff996773ba62ca9ebe825d1e7373646c11da6d9a. 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/DEB337101203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6130bb68ac31dcdcdd5653ddf067384be9e623caf09571179b0ad08633ed8e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEB337101204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12d5b4cfbe83962ccfba9ebdac40cbe1b002044a2e2c9603876b9a6e2dba012. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ITZ681801421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a24706cc53343ccc31efe1941056f1710bb01fe01feada107cf00cfe89241c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITZ681801422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80000f33422190dee2fb0c825152894af323ceb13915c0048be4002eb7e439e. 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/ITZ681801423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf744358a782ddec891648df73df04a82f13cc5556afc142d733cce890ee810a3. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ITZ681801426.