Monica Heldal (born 24 January 1991 in Bergen, Norway) is a Norwegian musician (vocals, guitar) and songwriter. Her debut studio album, Boy From the North, was released on 4 November 2013. For the alb
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 0x74d22a1887c8e028f8c6ee9864f4e2b960cb2877c851badf42297668c609fc33. 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/507fc07e-ce83-4311-a2b6-3054bf031862.json and https://artists.proofprofile.net/proofs/artist/507fc07e-ce83-4311-a2b6-3054bf031862.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 0xdb0b77d189877624069f775e28122ae119ea7a10c61c70fe80b98a9807cb0b5e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:32:17Z), 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/NOAGW1300376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a7172863a7a6b2ce11efc44b1698bd00106197f165e636c68ceff9b25d434e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/NOAGW1300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6627b68793f1058d7fc25898b0a5a3cd62df5c3611ffe6aad6ccbbb24641970. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/NOAGW1300384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158937c3c39e9e9ec2b35ecfa1a6873119b3b5f7b798f3d5ca0046c0df68c92e. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/NOAGW1300382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4b3fd4688ea7b35c14494e1d54ae985f509fb2dfd6cdf8f3dc5b4fc5685a47. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/NOAGW1300389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f56ab8c8bbcca5210fb374c946a77111c2a382081a2b5c0dce45c0d9ecb087. 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/NOAGW1300385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d7f53bae17dde42fa7742ca80c19796c6b23cf6b3c410bd75bfbea992d59ee. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/NOAGW1300379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ade9bcc1b404a125875ddab5a3c218f0a325335f6720bd9ccfb2153c6609e3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:09:34Z), 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/NOAGW1300380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c87e41e0e357e2b10dd70544150f2b3376a16f9ecfe886a96294c9deb7cfe99. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/NOAGW1300378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d7f53bae17dde42fa7742ca80c19796c6b23cf6b3c410bd75bfbea992d59ee. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/NOAGW1300379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e382edbe3b48d6114d4ab919147fcbcb23fed4961876ce76b121f515c99466. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/NOAGW1500778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff5b91ab46f6d270ec394929d1ac15c2ab44ab42c0034727f28921bdb33f2cb. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/NOAGW1500775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c3000cb465e352149119d1ee6b694bbe2a3cf551fe25dc3aa01e423f54971a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NOAGW1500774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929e37a68d7a0b123430604402f101f6aa41cc4fa93b715ed0ac7c4fa19ccdfa. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/NOAGW1500777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd928961800ca1315365a535600a46a72f34015cabc728aabd706690490f6ac49. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NOAGJ2113503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa1140974be72321a80a2ac92775cb5d4e485c63b29b5b6203a3ed24d786613. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM71206837.