Per-Åke Tommy Persson (20 December 1946 – 27 June 2021), known by the stage name Peps Persson, was a Swedish blues and reggae musician and social critic from Tjörnarp, Scania. Throughout his career he
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 0xc7a517f958dc9552416a9c5154ba484ea0bc067ff07e970354c4d59055b4fc6b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10ed6cf5-f5ba-426e-bfd4-931c7a30078e.json and https://artists.proofprofile.net/proofs/artist/10ed6cf5-f5ba-426e-bfd4-931c7a30078e.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c50945ca2748e218b93ecc01123ceb5a76e7a4d7c9285aa4fe3f121fbae92fd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SEBFO8004040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bdc24a820c20ee2dd8d0972a84d3963324d52a55503695b12ffbd4b44047cf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:08:47Z), 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/SEBFO8004020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b3b5176de68a490d4b4e642c66554f879594389a4ab9a029491d6257a15723. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:07:19Z), 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/SEBFO8402010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1731eb7722e6d458ebd33985c2b49525dea8dbc93ab1d69484d2669ecd9f874. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/SEBFO8802010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bb43a7794588f699604f1ebec3fcee4f4eac9959011a4cc58e00310a87c629. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:41:05Z), 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/SEBFO9703010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a46f81ccbfea2352c26c3936dbefa21d4d2a2c65b8d60cc564d3a5abe88b58d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/SEBFO9703030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3703563a9eaeeb340aadd35f1268d9a24026d888b17f2a944d898a6171b64978. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/SEBFO9703100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49381b0b0f050321c5ec22542dcb2a9b3624a4bcb5621478d0e7f459c0d69123. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEBFO9703130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee71f23b20f06242f618b8e459e37d5760484e783bd519eb31cd6e55f0027b9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEBFO9214010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1731eb7722e6d458ebd33985c2b49525dea8dbc93ab1d69484d2669ecd9f874. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEBFO8802010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d48960db4900b4ba65b39cd24878e75153fa4ea653129f87a5c3062f3acd4b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SEBFO8004010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd58cf4dabcf199a2eace3b46fa86bd480d13fdbb016171ef5cee957af1bb04. 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/SEBFO7802060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6521c020128b7e95ad82c9a1fa5aff208c79baaba8d1134996248aa8e18be017. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SEBFO7501020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d89140f9b6f04099b7fc6879c34be3dd722125305d6d12fdba48b362f76a18. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEBFO7501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f1a5cd3fde21546f856b7983a289e13af3337aafba7b016ba89b808c15bfa2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SEBFO7601060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8d8fd9e95d7c8ca8b192fb37272055d1a8cb110e8d49bbbe9084fd1eedfcfd. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/SEBFO7401010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce3d234698ed7e88bc3632b1c418f54420e8185efb6e1b0937c075e0fe709dc. 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/SEBFO7601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4b71c1936932f2ed06b3999b4f12159a3303b2c13ced8cf24fb51ae800b5bf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEYKU1503513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e298bea5293bfb09f73f5bf1c5d6cef7c526eaba62976cd4beb42473e98b631. 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/SEBFO9214040.
Gun från Dragarbrunn (2005 Version) [feat. Peps Persson]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425070480ba2f455438c53ce67f4fff55cbb51c51816a61c1310f954c0a4ce26. 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/SEVGT0902781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e298bea5293bfb09f73f5bf1c5d6cef7c526eaba62976cd4beb42473e98b631. 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/SEBFO9214040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30bcce67309ed71a253b1161e38896c030268e8aec1451e78cb4b28c6619700. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/SELDA9400103.
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
Fjellis - Till Och Från en Blå Man (En Hyllning Till Janne Fjellis Fjellström)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87e3a4fece599e74b68e7808f55f3da712562a44d129650ca67d97196efe4b5. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/SEVJH1101713.