Pihlaja (Finnish for "rowan"), also called kettukarkki ("fox candy") is a marmalade candy produced by the Finnish food corporation Fazer. Fazer started producing the candy in 1895 at the patisserie on
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 0xe5b2442249b60d6b5c930395dc0dcc7be895ad1843cb1195c17ee5ae11d66373. 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/2477b050-df47-4d2b-89d7-14c44efd70ca.json and https://artists.proofprofile.net/proofs/artist/2477b050-df47-4d2b-89d7-14c44efd70ca.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 0x9131b291aef17836fcaff3fb7dc47e3d37bd45aaa9f2146925691fab9bc5721c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:05:37Z), 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/FIBAR1600165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4c1cd52c48b5b3c3d8f91105eb289a5c8565c0f799b729bf48ccf37ceccc62. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FIBAR1600493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6437d6ffa3e894680f2e5917d36ed37d35b4ad8967c79cb5b57c8b5f0d4918b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FIBAR1600714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d1a6aa7802be5068fef31b9c764d792e699e79d8825fbc084ab2f82f06d45d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FIBAR1900238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7daf283336962f48657b1b7600ba8cbb2ab24f6dd422db3d4129c978040b12d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FIBAR2000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b165611801ead03ceb7e567ffc6a316f4c92055cad8843eabbb7e9f4a568a1f. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/FIBAR2000173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7daf283336962f48657b1b7600ba8cbb2ab24f6dd422db3d4129c978040b12d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:00:04Z), 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/FIBAR2000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc86808d32e0ad6be3dc77ac9e7b3fd9565d1ced63317ed68729fc6f2311e7b9. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FIBAR2000174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3eab0bf4d62453a38d75827a8768091e5a8ae2681f7f0e10169eef92f61402. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FIBAR1900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d1a6aa7802be5068fef31b9c764d792e699e79d8825fbc084ab2f82f06d45d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FIBAR1900238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacad000c9415f792e6c7d8a0726ea7281b541022e131a242a051971efd08a746. 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/FIBAR1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0052b4221685497b6428c24b9388cd03193f270c600085471c19a06a9c98e7dc. 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/FIBAR2200311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd36b6702001d21533a32bb47df1cde387b42b22cdef7674ce58d2c0bac5f43. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/FIBAR2200347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff76cc3ee722850f72fc8acec78fe5e2deb1bd65c01c6b55bf98b7fdedf6ac5. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FIBAR2200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e96ced66a182e40eb1fe12e6dc1b6e9b0da139b581683c477cb6f6d820ef0c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FIBAR2200348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d426a28c3fb62bd6ebd778774529f9646748847750cf086f4b3a1039e9e123. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/FIBAR2200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b8c20585d8275f24dbbb4e92724b1d10c644e0e56d7ce005938160b90ddde1. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/FIBAR2100351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d9fe47b4ad1812be298202e5a9f499b10eee2cc70dc291d216ec10c1bf8f42. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FIBAR2200349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3ec2f318661ff1ff59b1bb4e415fcaccfc0227a4b16d0ee7a4c302d50bff5b. 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/FIBAR2100310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83dda4a4e658a6e3e9e524211c6cb4bbf1acef0119e95dd0bb9dfcce9052b58. 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/FIBAR2300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4770466fc0042f713f36537cfa199510e5ece4351065f0ae4d4bfd293d414ffa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZRP52361860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0887c017579f4b22849a8a04065459d89c0c3fbe1166b5009ec12833ae8df9f7. 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/QZHN62323885.