Signe Svendsen (born 16 October 1974) is a Danish singer. She took part in Eurovision Song Contest 2001 with the duo formation Rollo & King singing "Never Ever Let You Go" that was runner-up in the co
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 0xd02c3a5aec33da395635120927b98f3d2b919b87a560165a4b5cb6ef4f84ece3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4fcc54a-5e8e-4e63-a9e1-71582191069d.json and https://artists.proofprofile.net/proofs/artist/f4fcc54a-5e8e-4e63-a9e1-71582191069d.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 0x8b0e8613bcb6508396ad73dbd5c1e2551e7d0b6099e9787bd81ac38d5c8722b7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DKQ501900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f0dc2b34351262301f50f06e63df1ec6334503d203007d38019dad1dd3c87c. 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/DKQ502400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67bf5b14499432d6ff75b28494dab4835caf739e4d011ad7b6b004eff00dabf. 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/DKQ502400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138f982a0e8443be014909f772bd72f1258ac08d26d62132b0748f59a18792aa. 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/DKQ502400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67835a4b1a96b57b54b2298af3d4c0762cf91b38f60aa06ce6c4f461f4a79e37. 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/DKQ502400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cde35c6b6dadc4c10c5dd0d3a47f29c87778eb4764c830f5b4f1372fc04b6c. 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/DKQ502400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7686f9f73a41487c5e7ad923df5e65bff011b4ca6218da3bfa95f53088db5bc. 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/FRX452229810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecbf3db72ef1625bfeb2744cab94e755c9e0811bebfe50f57020f4d43b60ec0. 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/FRX202238158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01c00a9892d06bcb69ce343e6ef6a5abb08414d1587dbcb4aa268e8da636752. 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/FRX452229811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d8425ce1109daafca80b0d72b0311f65a29a20c2e081bf26821f1a9bf7cc36. 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/FRX452229812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71280c5ca93b34c3f865ee96d1846c572c1add13bc6246713cc228949a2ee073. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRX452229813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee4215dc482d594b9810e176c9efb12d2bbad21997def2c476d5709e174eac5. 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/FRX452229814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac41e87b3720a1c937fb9703d3109de9f91b4e01bc52e261ce34b6384d0004a. 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/FRX452229816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc1f60cc1bc568cd2b7428858629637c5dcf4d9c342d2c40d784c2b30e3673d. 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/FRX452229817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adc6e23a78579a9d49fb3042ed7cf6a435035ec7c78a12a548a2f868699964e. 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/FRX452229818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af1a83b68346cc24a1bb228b13a7143511f968765a22ad8367dfee183247050. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKQ501800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0e8613bcb6508396ad73dbd5c1e2551e7d0b6099e9787bd81ac38d5c8722b7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKQ501900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31d4ab0b4fdbe0dd28fad987fbff673d6c761b420ccc87864bc4779aa025c75. 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/DKQ501900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40b507f63bf46f853c71079b9ede5c686b68f1a6a56f6f4290cdd7b9cac15c0. 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/DKQ501900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d73fa1bc66b5503fd9049572914c61f2189c270014198f7b0948f2326f1d6d. 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/DKQ501900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4c9138a5ae07ab87b0ad371a01dfbb61dade7ed640b1eef02ce8441284c3b1. 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/DKQ501900106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f586f5d7e3d91024edce2ab322338a0748f12e205ebabb76c5b35662e9caee2. 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/DKQ501900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504b0c6a19c82a15704f87d3dc20694e9467cccc7532f5d789a8db0c972934cd. 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/DKPT61600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dea1f6316158a58f380a0615f023ca551a8535ad2b58ce5bffe258876d1a769. 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/DKPT61500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8e12774be01a1d1d79fd44ed56be416da323141e4582a3443c12a035973c04. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DKPT61600104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4806cf8b86bc576fe0f3445596b5d7cdb219f636356dff05e7eb282b9bb049b8. 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/DKPT61600105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089f01d3b7d94ac4eb6a760b21a51a98a7f20b6dd9c693273fd7820620f9c705. 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/DKPT61600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3702a53082fa5d1c42c168d9f125771b07289ccc4eed1f40be76013912135f33. 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/DKPT61600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91197eb444991d1921756d3f58632ea1453b7a6a1b784258621753d9d8b35eeb. 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/DKPT61300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6379b68304309b75f017846fea17769755163089edc7aabc84deb755a6e685a. 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/DKPT61300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44883b7234c0d7f1e9be4c45342fd574c820e46665b36e726127e09a173e9b21. 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/DKPT61300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce5ee75afd27f492906624fe45197ab27ec8e2ce81eb4b9bda694f720beec83. 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/DKPT61000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7292f4ab8be5a965297c986616348cdfd37c3dcdc196cfdb8533aa264cfc5ce. 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/DKPT61000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fe79dd9d05f166855c3585139c1e1ab06cdf3fb51b760df638ae20d5fb3865. 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/DKPT61000109.