Nora Brockstedt (20 January 1923 – 5 November 2015) was a Norwegian singer. She was the first person ever to represent Norway in the Eurovision Song Contest, appearing as the Norwegian entrant in 1960
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 0x7b217078562b0ee67c66cd7ec0fdeadb184f1faa5eb6590558f46696fb4e1914. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c32f5563-a6cd-47f3-9aa8-4864d30699ec.json and https://artists.proofprofile.net/proofs/artist/c32f5563-a6cd-47f3-9aa8-4864d30699ec.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 0x6ff74df9a8b48e42bfe75eb2f975d96b756e08d754a70cce561bf07d079125a5. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:02:48Z), 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/NOAMM0300762.
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En Liten Pike I Lave Sko (En Lille Pige I Flade Sko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3de8c22b4ff70032122bdc867d86cf957d12601f70f5410e5dfd3a0dc4ffaa5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NOFBT9501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b4b97f3561f88c93c394bf24d0f97cdf9b613feb3a9204fa9c8286390168b5. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/NOFBT9502110.
Det Som Skjer, Det Skjer (Whatever Will Be, Will Be/Que Sera, Sera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cb6ce043bf750cdb1e2d5a0dd596649f7c2174c8294dd4b27aa9d554c4ef6e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NOFBT9501110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62aa46107a70af42d061d2e589832725404e6bc1be44feb5cfce603feeae3444. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/NOFBT9501140.
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Nora Brockstedt (Alle vakre jenters hambo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86314fc36a7960702a8fce593a56537d617418cf30676cbf2d7587291bc0776. 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/NONRM1509010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3c247ec653c7eda7ebabbc6c4f7e0c310b69f90f2d9f0ca29533131f8fceb7. 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/NONRM1509040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc55feca8f137b3d92933174b53141761a5416ddcde4c437d7288dc7ebce981. 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/NONRM1509080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0243b071221d35db0321c1f366ff1683b581c6897bafdb271f366314d177f68. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/NONRM1509090.
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 0x64cc1f91483ea3420fa86470d818ceff71174ff1a80dedddeca02e1468a01ef8. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NONRM1509100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6033426a8796762abf751d3248367f968673fd766ddd7fe2dd576790872d775a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NONRM1509110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdf249c49c09c964ce6de1b3850bd4acae8e2e131d5857f78825716db6e06ab. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NONRM1509160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd80992d69637637bd78982db6ea0669621ee588821ab9bb5e716d5db1ac1e6. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NONRM1509200.
Nora Brockstedt's beste (1978 Innspillinger)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfaa2093f0a06ce0a407cdfdc1dbb4cff781c7a450b7ca37975cd5a1415bd39a. 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/NOUM71102154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdfbe508debb00f61b114c62072cb39b876061dda9cca06317031047000a232. 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/NOUM71102166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2c1364bac0225b5a429ed8f061aaa36c860b876d65ee31ca8c151e06a94b6b. 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/NOUM71501899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73db45aeab55cbc1a52204f4b11143a8ef5ec5e2925b5c961a1e77f41a0718e1. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/NOUM70500688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb5f08d7221a78bee64cd756ea5b31c35d565424b5f10bdced213e5ec538d52. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/NONRM1703090.