Ellen Winther Lembourn (née Sørensen; 11 August 1933 – 13 August 2011) was a Danish opera singer, best known internationally for her participation in the 1962 Eurovision Song Contest. Winther was bor
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 0x74b190477ddd35e3b553c38e27d0729e187cc78f08becbe63ef30a3e2eb25de3. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfda773b-d786-4624-b727-d8048adbceaf.json and https://artists.proofprofile.net/proofs/artist/dfda773b-d786-4624-b727-d8048adbceaf.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 0x4dc6400ca41ef59969325ce28f242dcb28f6dcef905f857e9118e5135ef035d3. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DKABA0108907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad640450a966cd8cbf193ccb22599f503bf7b2ac252b18632d2f3146630d4f5. 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/DKADG1200644.
Det Kan Du Få For En Krone - Fra Jullerup Færgeby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9104cd96d46a4c76ad4b5f7b40eb0e427022b88c57bac69149db95cfb095f82. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DKAXK9774206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371b60996d972b50d166a86c42bf764e92f759d0bdc70f684f9601aed76e2394. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DKAXK9774207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba998f53fb31b21a1a5272b1fbb4af1392cc92d09f7932f9b4283b3290026b6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKADG1200645.
Nu Er Det Jul - Fra Nissebanden i Grønland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309e50ecf55e97611b60a375ef95070d9826413c1d6f8a95eed3664809d52dc6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKABA1104128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e34757a3095d1fe3d3efd7af916534bfc3da2e9e6ed03937bd2359e958b2fd. 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/DKAXK9774220.
Magnus Tagmus - Fra Kender du Decembervej
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0bb62a07fc14c34e0a932b7b387fac9744e309cbf6de012c929f5b1c369620. 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/DKADG1200650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f767543419dc21c7e26628f73314d3bb4450dce758430dcc2acfd5601b3888f. 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/DKNA22205303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae8cf88cc0ce65efaa5b89eb1cbf39442716dfd7e3a3aa1247ad60fcee93316. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEKB71385328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe974b9ce6768cd35ab9416d203f0b56231873901155f03e9624161ffd96e7c50. 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/DEKB71385332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd4db78fcb2bdc1e16a863d7eebcf9fbefe905f6ea769f9e9b397d7ee85c507. 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/DEKB71385333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf726e77afe6ee30273f09764abdb0f63e8cb7ac58b4b69a183111620d926c87f. 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/DEKB71385335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a8e483902b91b0d7573c8b875ceb0ab77b6e7138cc6e6c076cbc8e62c01221. 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/DEKB71385343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2760d9736a5dfe5612528491b7ec1bc1b05b58ea768d198abfc7313f1da0a4a7. 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/DKADG1200693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518fdc907441dfaf424638bdff51a1e799818bed258448b4985510d1d28ab5ad. 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/DKADG1200694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d8fea358be36d0746620302db9840f03f19d5bfcbb8b915628b7322895c36f. 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/DKADG1200695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb432a1382972bf4848512135c03754a0c63b39162c67124e7a9fa435f12f780. 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/DKADG1200696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7419c29b84eb095ef19982a60b73949d77bf70263866b940a5c3f59ff7f275. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DKADG1200697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12ae3d0fba43cf92f3300c7ea13a37ebf0e93e9428a79286b1c916dc260c88f. 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/DKADG1200698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253cf711173f98255acd1a64a2829c986c86e7d8bc3646ff5c1f4540ffe9b871. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DKADG1200699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f60ec930923b31c70af88ea5e771c784bb01c8d086e0f3874ab7795dd86d95a. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DKADG1200700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac389eeb1779081f5a71da4f4501d18fd5a239a9f71ec688c6afa1b50ffd0f4b. 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/DKADG1200701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee737cc2d4c2d1ff5dc9479db9fb56a4e1f86a6fe5086f5ad14b08447265f5f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DKADG1200702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7961c2c5878e00dbd95fb3d3b5e50234a963cfb8bf9d4eb1116d251206dd312. 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/DKADG1200703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc345da8d7645421869f6e67b4fc4f8461302f998e96542d99b78274ddadc60. 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/DKADG1200704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a95d2d1c06cae27b604dc9181e00e0fbfb7b9eb932bf4ca7ac746d29ea45dd3. 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/DKADG1200705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08fe75d5ab021e75d8473d0cbe3af7eac73db34c7541e301dc7acdb4c8f626c. 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/DKADG1200706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c21f80643deb2ba87bde8c849877b6e97dc0f04746d3e6255d73a9e4910c675. 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/DKADG1200707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57abcd857d5e384e4cb8a10fbe6989bc69c364a50af2b8cbd171dc3c47be6795. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DKADG1200709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68909e64ee6116421e92a1315c7081cb196033fb761b863537b1dadb97fcf73. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DKADG1200710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900bc95dc39d1a27edd4bed63f3ab20fc2d72087b64b4122f4c6a24e384a25d3. 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/DKADG1200711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f850b105024306a29d9d6f129b3a91918e1de5cb5897a7052102f5e2d44c6d6. 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/DKADG1200712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6c57367555ce6b86147f6b74a3049729d47c7825830e16f3ed2070b069abbd. 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/DKADG1200713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa94b7b9c95da08deb6634fa9a0dfb60975e884321958808f23cc0273be9a218. 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/DKNA21501004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5474aec75c1547cc125bc157081d31b480a34af48690b4a853c43637f1b17e8. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DKNA21501007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4897c3d0008b06465b66695a114a03a750efae74d8d297b158305a80ce1f373. 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/DKNA21501011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4aa3a66cb3a9681d188849391441848e5be663edecc1573d0b8db6dac07f77. 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/DKNA21501013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46124faf18ec94fd71d042c1000f79c59282dd1d50ccff0d0ede473211c2718. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DKNA21501018.
West Side Story: Jazz Impressions/Unique Perspectives
Københavnerliv Vol. 1, "Med glimt i øjet"