Carl Gustaf Verner von Heidenstam (6 July 1859 – 20 May 1940) was a Swedish poet, novelist and laureate of the 1916 Nobel Prize in Literature.Stork, Charles Wharton (1916). "Verner von Heidenstam," Th
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 0x1aa6e8681c2267e5423f2e20b952525209c2f999fa0cb6b972021820a0559607. Chain 2 (Bitcoin): anchored in block 954013 (2026-06-16T22:27:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34da81fd-d5de-4828-ab8c-282f4e1e5474.json and https://artists.proofprofile.net/proofs/artist/34da81fd-d5de-4828-ab8c-282f4e1e5474.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 0x7e8ae4c41ceff1e35a0cd409814d7def2629810bf0deff66f3fe0090059019f5. 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/SE2LQ8900704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4114a0a3004f96c881b202a2ba6979fccb7d9a017cd3d3de941a5a11693f6ff8. 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/SE2LQ8900705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8940ef3f1aefa663423c997e0304138f7397a3f5d501e24cf1beaad793b5f8. 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/SE2LQ8900713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646d98e3a8e119af35cc3e0365a727d4ad4c2148669bdfd3c41258726e1658e3. 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/SE2LQ8900714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8f6c2b7fd28c4c47c9cca6e840ff5d80e22d0527f66f01b2fa65de74c0d8e4. 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/SE2LQ8900727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb7f55537e52ba47594cb2acc3399fb53d01b14986b80e12ef2089c890cacc7. 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/SE2LQ8900728.