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 0x57cd96a130b285d00f3953e9c09f7eda23d179acab94e64fcf580648d90b0075. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fb6caba-5593-4040-9a7f-160394bd932e.json and https://artists.proofprofile.net/proofs/artist/7fb6caba-5593-4040-9a7f-160394bd932e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nordfriesenmord (1. Fall für Emily Anderson)
Nordfriesenfrost (2. Fall für Emily Anderson)
Emilia in Stufhusen.7 & Mats in Husum.1 - Nordfriesenmord
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 0x2e1750195f134c64146b317a0b4a676e3d55234f371661aba86573d0ae1da8e0. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/DEXQ89914428.
Nele in St Peter Ording.3 - Nordfriesenmord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0936f88632a9005890126b4ad7b9540589b58f672482a3343d32ed6d86dc8d72. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:35:25Z), 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/DEXQ89914418.
Nele in St Peter Ording.4 - Nordfriesenmord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e222d85b56efc205e05c3d38389b2c5f36684f59a87e95b56954f61cd65ece. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEXQ89914419.
Piet in Friedrichstadt.3 - Nordfriesenmord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc28ad22292595f11180a55fdd33a8894937092941d956a66bb4afd341fd8e8f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEXQ89914436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f0075204fed82b7619f185cbd568961781c95260227103b4f556a5de22309b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/DEXQ89914430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91000294857907ce5f17c16c53a8ef6522242069a539cc3714e65340ad39118f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEXQ89914424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc803a444600219e6d9a2421642afc85b8b2d6fa37f2c96f4fa114b17cafadcdb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEXQ89914426.
Nele in St Peter Ording.2 - Nordfriesenmord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d26847eeec7d249f9cc1156cfc2851c3cf592561c1f829100602fb964df3267. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:14:57Z), 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/DEXQ89914417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8999a2081481bce1278db07de4c3a76c33d35056f0805f61ef3ae1f4e47a80e9. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/DEXQ89914423.
Nele in St Peter Ording.7 & Emilia in Stufhusen.1 - Nordfriesenmord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38480510d34bd1173726701113e599bc4dd01400e143d77c559d779c0042ea19. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEXQ89914422.
Nele in St Peter Ording.5 - Nordfriesenmord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe247602e458aecc95da9443112edc87f92b603e6f8b9da449bf06fe483944890. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/DEXQ89914420.
Nele in St Peter Ording.6 - Nordfriesenmord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d9baf24d0c55acac56f81dce1f154b0fcbf04b38d556c9e2d0beeb16767a36. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:55:38Z), 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/DEXQ89914421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598e48aaa43c612146a097071e33adec4aaaff8322398d4cb2340fcc58c21183. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEXQ89914425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d8e06e077fc74ede5ca3f633efb52f294e2873fe4f3ffd75c49cf303587484. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEXQ89914429.
Piet in Friedrichstadt.6 - Nordfriesenmord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73deb8689e00f0ce1edd00d3b9ea88bf2af07ae2937aa11dc24036d049aed7f9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:09:38Z), 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/DEXQ89914439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab9446a69de2d03ffdc2be909bc53388d42c62399587b60c362ff744c0e3ce1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEXQ89914427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7bc287c9ccc5cb1e7312d997829b53f32ee926a4ea684d8a891ff9a399b25a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/DEXQ89914432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c92499d3f6bed6c51a97cab3a5f6f0e4d35555c9a27100cf9a01944c437b018. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/DEXQ89914431.