Jon Anders Ekborg (born 9 October 1960) is a Swedish actor and singer who has performed the roles of Karl Oskar in Kristina från Duvemåla and Freddie Trumper in Chess, two musicals that were written b
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 0x1c30c73d510623d345262815ec3b20b761c2520fa6ad413a6b0ceb003e6810a4. 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/a1311966-855b-49de-880c-ddd98334ee3c.json and https://artists.proofprofile.net/proofs/artist/a1311966-855b-49de-880c-ddd98334ee3c.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 0xd910be12204d79cecd286e0dd3c175e206c1f0b0805c17d60df73ad6b9deec72. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SEWXD1000101.
Våra barns godnattsånger - älskade godnattvisor & vaggvisor för alla barn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8df482456262e91a3c7ad5535a8bfd20eebfecc209090ba37e9f8b7e990c3b6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEVGT0903805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4395c72cad1a1d2e766956c1c05cbb962ca1cd914fa83eea25d84400f9cb09d7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEAUA9601030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd1531103d27c4e6c1451752272bca1ae9b955cfbee9feea026d55c108338f5. 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/SEAUA9601050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87accf301d482663bc917b900039f859f68e47cbaf4254e216f082f43d0ea111. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SEAUA9601060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb460a86ea03005c0e00c3b152d1b4b9e34d50fa94d01cce456368409b89bb4e6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAUA9601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bbc013333edb9ea05c373c2b416102fde69a60a1e184fa4eb5a375fb1ff4d0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEAUA9601100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f7d18a8f3b68db3d490cdcff01757136572dbc1b42776ed646f45fc714c0f3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAUA9601110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ceda201b530b86f48959e1da2675ae74e3ca2e59bc7e6eba9d9692a124350e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAUA9601130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf7978651c2a2bc5826b75c76cadeb6e0f03f22094637448c61f999ca299e09. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAUA9601220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3db2d6110416d499a77c6849db41e6ec124d5393b3474dd11a56d8d04c2a73d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAUA9601230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdc55e8e5058b3300e484b704d84a7fb0ffe42fba01102c22aee64157702965. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAUA9601240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf47a0551a04e4451b715dd172fa719ed4068169f061f2304ac27dcb2eafe5f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEAUA9601250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47314e8dcc893c61cae33069fee5f10c5f586e53700a066f3c24cf6304fc5ae3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAUA9601280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4241711110ae61bc78d2df9bcbbca34b9c82c0120b7d74e21ed21ebba2328c1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEAUA9601330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ab459e7344a2571cfb7a8a3e4d4eccb14bd3597ef4b7efe2ebd91cf3352715. 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/SEAUA9601360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2e25528fb226b1773c68b5ef46b5e19077489424f27fa3e0b22fbeb2f7f63a. 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/SEAUA9601390.
Chess på svenska (Original Musical Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3998175d94e4bfc3fbfffe635a09f3bda0c647b2a799f288420ca8ab5d7f07b5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAUA0200104.