Kristoffer Gildenlöw (born 1978) is a Swedish musician and songwriter, best known as a former bassist of progressive rock band Pain of Salvation. Early life and education Gildenlöw was born in Eskils
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 0x2b4b440d2f5f09c1eb11b823821f0d13906204a0131d8bceffd979a5b9ffb049. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f55634b7-2615-434f-a2e1-ba785f0a613b.json and https://artists.proofprofile.net/proofs/artist/f55634b7-2615-434f-a2e1-ba785f0a613b.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 0xdf53e4608ff79f9b26cbe7b75e3305acc6cbe1499478713fc6abcc0a75355396. 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/NL3H92400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447551be0c38635ded73199d1792fd8eeb7611409990dd7bd297aa44f7637132. 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/NL3H92400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08045d258044c5e73139dcaf6f5c65a48b32ec291c3a7a5f4624ddbe4142b1f. 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/NL3H92400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9bf0e7501720ff0532a85671a082ca3c191b4f98db0f4fe99d5cde2eb9c1b9. 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/NL3H92400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee207897bcd8ebb1b9c804e8e891c21d54197a3e32f02fae1bb29111272dbf93. 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/NL3H92400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1fc84570384c3d21475b44133c74fa0deb6a9e1bef53e8d02bd40e053209f5. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/NL3H92400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadef9e85ed80068231be7f0bf90eea80c8766a381e3ad9de599a23d209e32c51. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NL3H92400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fc676c83071c004949964ef5e905e4bde6e8e98ae9e8ead4b79323d839bdbd. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NL3H92400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1c63055c70e002ddc3ffb4c8bc44f07e38187fe355c1565d431d12a99132ad. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NL3H92400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d0a6ca9dd28c8bf847c5ce2335a1f3bf2521a69d12339efed2c5d840f0be4b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NL3H92400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3a293fb4ea56bd26dce2d392008925e94ab179f5a49e2ac40e20466a552a33. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NL3H92400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7756e4ea410df9f207053a76a9039932891ed2fdf37af4b5ff59eaf075be5e. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/NL3H92400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeeed93385019929dd57934aa8e6a74682fc5f8a39b0fc9d5ee462ba01edabd9. 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/NL3H92400014.