Ulla Henningsen (born 7 March 1951, Kalundborg) is a Danish actress and singer. She gained popularity in the late 1970s when she appeared in the popular television series Matador. As a stage performer
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 0xf22eeb6f650840c651a4280e9235e785d4c179fe957d8fae66e7e53f33e13add. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09f31102-b366-4095-9a49-8be3c6c09e05.json and https://artists.proofprofile.net/proofs/artist/09f31102-b366-4095-9a49-8be3c6c09e05.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 0x83e775b05385f52ac3b5b343595b0032399c39bce13f66231a223efdba193639. 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/DKEBA9909504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd876a785879c0bf15371c4a01349ffb13520f8e4c6ad6bad905f5921307a6679. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKADG0602336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6573d1dda0d62e0714c91e26d15855881085566dd581c141c4065397e02a126f. 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/DKADG0602344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbb0cfb7b06d8a8bfc34e6145c13e435a67a23f36f7f8bfdf1b0137a999aee7. 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/DKADG0602349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c9ccca4f9d9452063a903183b1786a6dbc986f6c283101f9ab561bfe9c697f. 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/DKADG0602352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd2576929b15ea6ae01e70b79725a0498d72361398cd49962028f8b836978ec. 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/DKADG0602354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd1be400b3bbdd4bb3e92f15253ebb0f7299ccff3ef70b8551f174fa951ecae. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DKADG0602339.
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 0x30f094795b7ef8c85d12ceeb8f588321f680e0ba5060e94547b96a865a1b63b1. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DKADG0602341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93af811159f48f962689f0e2e1a6f575ad0565db5b260eabb380896f33b4478c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DKADG0602343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b1081c267d2b3ca23107c42be95f85d4705552acedf7401140c178a0687db3. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DKADG0602346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c298deb040b2f590cad9461218f513100212b70445d3fa4087bcbc078e74a5. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DKADG0602347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1de9c1cc72e1cc2755e61560299b2a8bd2c6dd802275df58ff94be8c3ca15f. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DKADG0602355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc756c59d49181a8145c34035bec28b7e721448e18fa40a5b7f4c3d07524f323d. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DKADG0602357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35875f65e9cac3c1fdc6f725a88381a88382ba86355bceef7376a8c0374e0bd3. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DKADG0602359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a436067c769745bdf3c25163ad7334e5d1add9e413a18a3097389d65dca8e9e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DKADG0602361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ff1e337c70991134497c7d04ac2d6c4f1e81716aef2ad7176675a5cb17b238. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DKADG0602364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6300c21b105eda1932474592bf80dd014ae3776e8ab192327772c70a9c5d9ef8. 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/DKADG0602365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b216e6ea5c595ef7c3df8e2de9265722296c48bedaeaa45b61d3d997f9bf9a5. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DKADG0602366.
På Danske Læber (Leonard Cohen-Sange I Danske Fortolkninger)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd6bca840804c31eefb8e6ed719f0227c5c8acf6de724a0a0ac7f4e78963ff7. 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/DKI9A0400316.