Søren (, ) or Sören (, ) is a Scandinavian given name that is sometimes anglicized as Soren. The name is derived from that of the 4th-century Christian saint Severin of Cologne,Portal Rheinische Gesch
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 0x59db48d353acbbc5c460193069ebaa61b4b67bfa65b88e2a35d60202215fdc40. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/102ff8f1-6cd3-433a-9b41-2d31fdce8314.json and https://artists.proofprofile.net/proofs/artist/102ff8f1-6cd3-433a-9b41-2d31fdce8314.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 0xc717d90a1536d160969ce4ab168eedb6704296a6084ab7e0d6bf38ae80b3dcac. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM42K2506682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0232e8f09a21fca7e8293a2e64c003a7c47962f68a736ed03aa07478d3c3f96. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZMHK2508500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeec553cfa8230a718d19226af76aaf7fed13242e8204e35323a8a5def6455a6. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QM42K2540388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23489af7001ac9bb8cd7052871aa6ca85b6e75e4085136a798eaa88ad5c16d7f. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QM42K2538279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e5bbbceb46c4ae889ffb3fe4ca630fd3a252f9709355c222b75e18dc9b594c. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZS632550040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20053b9e9bc204c90f5efe77ea7ddae0a018ca95771563e2feb8c03867a969b7. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/QZMHP2572403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe353e38e56cef1f4ed3c1e9b40578b86c96185d407a61fa1bc468a9202dd9313. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM42K2530787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47326284374b86ba1da5c9d5fab1a122ef000305bb1b4102b0b131870dd5ec16. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZMHP2565083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9009b4f6348c05858e3d88d0c6c27c9d6c2aa219158443e66ca1fa673a7322. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZMHL2511171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0831bd38f19b03f07fbff44037603b58ef583cc1d955aab0f7814d0180654bd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZMHK2564183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c77ebac7d2e5f3cf3a2377e59bce8387abc79758ee6f9c5056e3135e3563d3. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZS632516554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015293637936d32ef722cc4919074fd28e9407823e721e6b2fda576004136cd5. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QM42K2523760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10acb911628a1213e049d8a1ffda5b58f227426d4d01269f92faf0dab765ab9d. 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/QZMHL2593754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e9e6c4a1dbe147ebded19902a6cbb357700891b210d3e3a768c5a88338949e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZMHK2552755.