Headscan is a Canadian music duo, composed of electronic musician Claude Charnier and singer Christian Pomerleau, based in Montreal, Quebec."Headscan". Chain D. L. K, 8 May 2003. Marc Urselli The pai
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 0xde055ebd656cf6b531129c43b385de910bc4a24ab7179c6e8ac4849cf854bb9c. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35cf7369-f9ae-4b34-84d2-5aca70003f9e.json and https://artists.proofprofile.net/proofs/artist/35cf7369-f9ae-4b34-84d2-5aca70003f9e.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 0x68e524305977f33db45c14c632b12ffd6aa1bf39c1fda6bf75ed9b07b289bcbc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BEC260608103.
Endzeit Bunkertracks - Act II: The Alfa Matrix Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e887ee7a19e7f87688f364a227aae91e36ee841103fa5014cd39279af1ffc9. 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/BEC260606601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61375de517291509ac9eedb82b011d51b0d87f475e8c444fca5f2c602a3670d9. 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/BEC260606611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2aa473270bc8275f5e847fbd2756937f1063c103b6e94e17f9073d48922ab0. 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/BEC260606613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8f523da519631d3b6610c3464b85ac4e93b351f807d5b327941bbc9c053004. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BEC260606616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6306bba47427cf2c153ceac91e97e4e8e97138f3cd57f4a89a415060d88dc321. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BEC260606617.
Endzeit Bunkertracks - Act I: The Alfa Matrix Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a8ccbb73f6b011c82928d9f9b18f902f6cc7b9f72436c80ae26df67d41c888. 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/BEC260505001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86afeab3116aa6f0ef2a3d64f135e7cf7600542c88820087dd5dfc8c1ce3c3f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BEC260505002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113b658d4d3aab0ad8259ef5871cac0301f084c781e277d9ba74237704eb1a74. 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/BEC260505015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c38bce2121f9b4d82fa4a1ecee54b52dd79a33e5347fd81dcc00cea84894860. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMEP2260684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f5f12c460a27ac03ea15899b03825d184cf4227697bce3a1cc0e889bc871f7. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZMEP2260685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fa1b2430c9487f72f30790e70789a2e24ccbd40655bb8a09e1c9b00d7604f7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMEP2260686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2fb5c3596666bdfd1de6038b341a8e860b3048c1d0c75b366b3c84a60679d0. 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/QZMEP2260693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bdd02d1a473935d05d92dbe46fd346fb3d5adc7819463d411221c861e0e834. 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/CAAD20500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa681e68e522ad8d32281ba72666c71e895a5ee62ad50e65606c3a79124afed79. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CAAD20500113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cf1cd577a6da5a4f677b3dcb16539bf2f696dab6dfabc75da202db50803c2e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CAAD20500408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c2145bcc386556d6b8fc61a77a47eebc623823fa6ab00806cf63c8d5232ae7. 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/CAAD20500430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89e661e298f58fee74430614a16f5de7d87ee5ca60bc77b7277e813e2bf6904. 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/DEBZ70400206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6ad2b87a19dab1c3132a2d62f7c7be1592143b74579087ba664b2b2cd59068. 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/DEBZ70400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae6b34c37447d0fdb56d91e2f34014eebbb55a01277c871f3036671bad2d23c. 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/DEBZ70400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5784aad72370cc3cdc984c9f28c8f558fc204b39f367866bf826c4f911061525. 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/DEBZ70400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf373378c353e728c8da3f69a351f0a3a393a89accf1bea27abd493c55f5e4e95. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEBZ70400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998ead049163846656e1444ee0d92c45dc2eb9de2a0db8cd19f12d5eaaf43576. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DEBZ70400211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ffbe671058b14dd82723137a2796a80f5b381a3262759853d5ffa03f946b44. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBZ70400212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2633c33065c603146faa92f4cf516f37e5bb5fdb4e32faf62cfaee4c9fcc5bb3. 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/DEBZ70400213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d8f9f02f30fb4a4eb6c48fb806ff29d494ff8a6196124fe1f8d09c57327fc0. 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/DEBZ70400216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36308596de4e1af2a59987b91bfd15af2db68e01bf101c10c662d41f0132c5cd. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/SETGM0300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f41498213c1d1a96543001b5ea9bd8ef8f0bfbfd28759ee2dd1e1b4b016213. 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/SETGM0300302.