David Alexandre Winter (born Lion Kleerekoper; 4 April 1943) is a Dutch-born international pop singer. Winter found fame in Luxembourg and France. Early life Winter was born in Amsterdam, Netherlands
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 0xdc13661472545f412a9f090f4dbf791d3094908d9b4b02c4f1d572ec4c550680. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fa329ae-0dda-4c38-9d3c-0e5139cb943f.json and https://artists.proofprofile.net/proofs/artist/9fa329ae-0dda-4c38-9d3c-0e5139cb943f.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 0xbc81c46972c2edfe3071612054dc4f36a78ce97d067b42f02259ebfa6269bfa0. 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/FRY401000132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe546a2e72d35a3f9a5927553389314f135b78ceb39f9579f4b4d5fe4c3523ac1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRY401000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c159fc191a8644d17c756bdde9f0bb439e0ce11f41e64b45a1edca2c05464e. 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/FRY401000122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee2f689f167364d379f3ac0dcffcfdf7e395cbcce36d9e61bfa5e539c3cff2a. 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/FRY401000126.
The windmills of my mind (Les moulins de mon coeur )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8c6729c8b8b06861d7bc566990f79653c01e7c45605f517f7e1969b4b7acc2. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/FRY401000123.
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 0x9e4816b5dcb15b0ea9930724025aee530d04099cbdc9ef5070ec28034d5906da. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/FRY401000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20422734488d6f6b6c1077709838d568ccf30e0a8e9b7020a1f10d7fb9c74a6. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FRY401000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a57212d5255dd1898b2718510ab493e8ac72214d1ac8b0c747ff4a75292c40a. 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/FRY401000134.
Age tendre… La tournée des idoles, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bd24fa517cff4fa9a1dd5a8ba5279e82c8467b734bd3711a12983d1ddd30eb. 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/FR2HT1000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f0e34e30c0bc10f87f77bb1e93d559603b43fdd31cf7efd32e3bb86eafbbfe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR2HT1000230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6033ef6628c06a8e499a4f6bf2611fe0066b1664613e4ce7dbb18d9c152603b4. 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/FR2HT1000250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0c086d6dc1914b7c85bab0b101e29711d76638bd747724024cc6a9f24faaae. 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/FR2HT1000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb72d6967695cb62f65b28ac204975546eb015c96dee0b45672c5faf826d41b. 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/FR2HT1000270.
Medley: Le rital - Vado via - Ché sara - Madame
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f8879c9a8ddb87bc30788dd2767cdeb3b898d24c6c8636e474c063ac004d6b. 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/FR2HT1000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d616c8cc5dcedd985a00ec2f684838792a769004177837fc9f02d2da8cc91cd. 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/FR2HT1000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d721a9a9f77d6b6272cd3114ed4ffb96833b111c267416e34b2185d3f18f6c2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR2HT1000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12387545392cf6fb396740d929974f2ee6fe727ba28155c33240fdcf531c3a88. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FR2HT1000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2cdbeaaa3f26a577f96a012defd8674d6d30740c6eeba3245abcc10ebb860f. 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/FRY402300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fea6cbe46ba6455e653c298c75d7eda0ebd817ea87199187749edb1bf564a37. 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/FRY401600084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1445db8b338381b8aa2a67ded971de5980ab07b11955d3a249c80a86a9590322. 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/FRY402300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35701f8e311bc0d071f5178c68d40e7c9a187ba42c7028ebfc878e8b20078f1. 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/FRY402300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca5d5f3c85428d97829a01e1470fffb0564d96311112a24ebb2a552aa39a659. 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/FROHS2000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b55d95fbfbd5829bd254803d609a9852ad978cdf5a5b665c37947fd0509d18. 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/FROHS2000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ff2b23cc4dd1481eefa92ba9f7745063c3564d6bf4a2e0c8809a7e00556db8. 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/FRZ036505710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fd5c30a301a9977674de65d10f74386e09dd7499327c3016b74ada38fbf5b2. 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/FRZ016801950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22e0a259aaa6edfdd8f12a25a0645c3f0ca9eee52a049130d5d013261cc976f. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/FRZ016702290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e1ec74078e428230e86cef8d7854ce1a2229896358e1dc4bc6f172151117bb. 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/FRZ026601150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eaba4fb8ba395177c3646fc99a9193e88f8db2e401bc5b06d9afbc932eaeda1. 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/FRZ066500960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8d181a6ffc619884c27e6c396d5eedb7515770bfc0e6aa4145db1fbf0fb250. 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/FRZ036601340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bc90826f9b32d5ea3d10611972197efb3804212855b60c4ba23a13eb00698b. 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/FRZ036604790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683c2f27204f3b89c6c09c16c3af0cfa5fe7e93ab4037f6feb864ea292a49cab. 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/FRZ036901410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f55de993885722efe54cd58a54476e961819ffe2b05b675cfe8662452d543e2. 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/FRZ016702300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50633334559cfc8cc04568d5f4856fe8d7f5838b8fbbeecdd607bfc991e3bf1. 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/FRZ036505720.