Henný Eldey Vilhjálmsdóttir (28 December 1935 – 16 November 1995), known professionally as Elly Vilhjálms, was an Icelandic singer, regarded as one of the most popular female vocalists in Iceland in t
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 0xf4b019f5a6376ac2074e77a0f64fd090bff8c082f53810138d34060aeeaffe03. 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/63561988-4da8-494f-b72d-7117be4bf1a0.json and https://artists.proofprofile.net/proofs/artist/63561988-4da8-494f-b72d-7117be4bf1a0.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 0x9ca6fda0c2d06b0c6a7f8a6810d489ad6711987b0fd70f117f35f619005e4ddc. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ISA110500701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338781bc66bed3944d8454c553bd94564ee79e0f4a587d1190899d646a6d8df3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ISA110500801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6514d2312a5bea87cc9665c5207ee08c3b71afef9bb748f2e4b2e54a92ec7bd0. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ISA110500803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5479e9a1051349858c6bb4fb659453a48a60d898a0f3bf52979312fcc590fa95. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ISA110500804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd8d4a2d7430379c365771cefa27e58ca5112631f9ae53447de358d84a67e2b. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/ISA110500806.
Syngja kunnustu lög Sigfúsar Halldórssonar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91439025655373927deb50537993f2a66edbb0d9133028ee093d86dbe9949775. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/ISA110501301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfbecdf04dce436bab92ecf1fa965010578ff691443653ef6750841c9b0176e. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/ISA110501302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b663805814f80698c1c2cbae929b554bfebbc317d3e22b24336839662458032. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ISA110501305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fa72546b2aea5fd213f9ae230c31f950112154bed347e006d6c0ca13eb1107. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/ISA110501307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6be33fcd3282a37c909422698263556a2469a6c83470733e721838f2ba35474. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ISA110501310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf154cbc761c69b26d874221542541f7daffc82b09d76c69a21be96440f6f05f5. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/ISA110501401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fbac0bf1c56df537033b669babcf11e03c07d546ace5c26ed59e4a8dd04f34. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ISA110501403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af3572bfa22c98e373e0e700be80eea5f8fd97a85909b9414be355dfb97028d. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/ISA110501405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76d523b2bfee5bebf78fa64d65324ed7e775b71716fd4a362bef5aae16ec4ed. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ISA110501409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30057e8cba5973dd0d5ff38e901c91e12ff51e031053c8168d0c8cf8dd6621e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ISA110501411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cdc6934f4464c9da57dbb259291024ddad5d28c474ee75d6e5810c9379afe9. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ISA110501412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05d24347a9d0376019acb45a38ef47b5e3e6dea151028e5708b253f0c5e05fb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ISA110402104.
Syngja lög Jenna Jóns í útsetningu Þóris Baldurssonar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bf68580caaa17b17b7c635d9a5cdb0648e3a274defcb96c34626cb380ceebd. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/ISA109400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3bef7c46c2ad974e8116cb41216b2f6e7f34f351f1a755017e64e454bd0804. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ISA109400311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500a1601b790497a58a864b3e803bd36abba51cbd2b76a8fa4446a84d2fae45c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ISA109400313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619e3ebdb609b1d506197bed3a43052199a2b225205bcc3fde0f237243d17bac. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ISA110403819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d3a218661d63483e5fd6aa2f48328070c47c3bcbfde02b841db401071eff92. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ISA111006812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483a48c672cdb5af980a8890633fe3a904f8cd28ae3daebe80500b848b325256. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ISA111006816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae3d4e15123f15adad4088a732a446e3d9f9324441fd0c75a0c6d9a223401f4. 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/ISA110904121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc9afd6b542266ab9c9d4610fec5bdd0f227e61a0a4796300bdfbeacb6ae4aa. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ISA110306319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05d24347a9d0376019acb45a38ef47b5e3e6dea151028e5708b253f0c5e05fb. 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/ISA110402104.