Per Anders Hillborg (born 31 May 1954Sveriges befolkning 1980, CD-ROM, Sveriges Släktforskarförbund 2004) is one of Sweden’s leading composers. Education Anders Hillborg was born in Sollentuna, and s
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 0xd1c0800fae63fba76fefc17046c911dd30b11c12d2af6afdd5addce674fa0da0. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/396a21fe-955c-467c-bcb2-06ae0a6e3ab7.json and https://artists.proofprofile.net/proofs/artist/396a21fe-955c-467c-bcb2-06ae0a6e3ab7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jag vill se min älskade komma från det vilda
När en röd ros slår ut doftar hela skogen
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 0xe259be6f39ce9916d32c050fdc0f843fb2291fdb0f3335ac3ad1c32121f10aaa. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:21Z), 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/SEPAS9531011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc2c1f061322488d0d4ed526647c1c37ddd738453910fdfb10b7bb92223230f. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:46:09Z), 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/SEPAS9510040.
Hillborg: The Strand Settings - 4. Dark Harbour IX
Anders Hillborg: Six Pieces for Wind Quintet
Anders Hillborg: Clarinet Concerto, Liquid Marble & Violin Concerto No. 1
Hillborg: Violin Concerto No. 2 / Liquid Marble
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c169425b89baae746a7c124dfa1ee30b303d31d768fbeb76bfc5095f17f0487. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEE862401059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55f2ab708fb7065f052ceb9f2f9849f20ef855f8a9e507f6705250b0ba91374. 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/DEE862401060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc508d0f8e4ec87071eaf69cf4c95c27c79c39d6ef6dd43fb9a52e9200e00de. 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/DEE862401061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0286091a15ac4d45f670fa2d9c955af035d2ec9485f64ac227bd461adac7e84d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEE862401065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a34ef86375ef7630435959fb7e3f2d36700797cbed0a54d491e971fdff7813. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEE862401066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc648c46b05a51c9718a894cf88cb4d60d081b0015ffa3928046343ff0712ca. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEE862401067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460d407fee74e4a9225228376045577feaa6c411d871b5feaa7600329bcfb357. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEE862401068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa824118d623426afdd54b9638b86bb08f2a9b8627c1cd72b4b82529198713a1e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEE862401058.
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 0xd6d993f7be9df5dfed2e922a61aef87b8d1f3dc206ef328e22b2d1a9479d27fe. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEE862401063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced33510a7c46c0d87f25d1deca2fc2071f5b2260b80bb097a0a03c787f9cd8f. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/DEE862401064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3d99b29a8903d80335592c1beead1c1a94b191373983d803497acc8236cb76. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEE862401069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25c0999722b081634e458e280f206759af39c0195282e99ce32dd9a245635c3. 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/SEBAA2102009.
So Many Things (Arr. for Mezzo-Soprano and String Quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfafab4e4cab985a73df8a516842ff78e02a6ad80f2976a18c20b679d2bc28b9. 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/FRZ131602070.
Peacock Tales (Version for clarinet, piano and strings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16594a220106bf57cb2c4b49b1c33df9674d4f57de396f6c182d503d1d05a42a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SEAES1163140.