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 0xbb91980ddf5ea1a08325450e22b127ed5a1ed648b6c601989fdff731b0c0d143. 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/4e621990-dd7c-4769-ac22-bbc1578cc143.json and https://artists.proofprofile.net/proofs/artist/4e621990-dd7c-4769-ac22-bbc1578cc143.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Nattasanger for de minste Vol. 3 Bestefar edition
Nattasanger for de minste 4 Bestefar synger og forteller
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 0x916cad488fb5df1b1dbfc151103ac1cee8d55399169eca2c8f7f73ce067570cf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79de0a063ca3fdbe675ccfd42d99062a3c4fa32638e874c2084ccdf984ca1607. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e25df738dc77e9b5abed45ca856b54e5c81d1454b70993da9dd24a672955d6b. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400005 — a six-check JSON result.
Karsten og Petra - Karsten og Petra på safari
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c4ea2c8ffe689f7f938093da9725201e0a5d8c0f31760137e52f6847daa7db. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca7ddd8ba1311a4f620fea24919eaf6d11ffa37b0980de76a8d369092841073. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29123b9d08076c8e86dc1ea797a428712d4c34afd9f7ae45e85ecc2bed84974c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57a8b3573ca921ed3ab1b5c1dc16eb4667cb120d758bf2620a673003196a6ad. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ba007b5e824159e30f560366a235561a1031d54c30b5ef34250a3759efe8d6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400014 — a six-check JSON result.
Nattasanger for de minste 5 Instrumental Edition
Karsten og Petra (feat. Ingrid Halle) - Karsten og Petra på safari
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4310630e007057df1fc3a9827352b8e1567d712814796e183140cccda135f4b9. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32200018 — a six-check JSON result.
Minibarnas sovesang (feat. Johanne Maria Foldøy Hageberg) - Fantus og Minibarna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff96ce41cfb9cdf4d3707a48628674446e1df007d2bb2a697053288f4aaaace. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32200028 — a six-check JSON result.
Godnatt (feat. Johanne Maria Foldøy Hageberg) - Den Lille Redningskøyta Elias 2006
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fc359179f21848d4b7857cb298afd16a16532e4ccb7cb41cde21b95dc868ed. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32200019 — a six-check JSON result.
Trollmors vuggevise (feat. Johanne Maria Foldøy Hageberg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38668d1ace0dea9351579995e4f4e01053d7fc2297f49a7af15592b295376281. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32300115 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd28c894ab479ac83e90428a7ad293d2be823527a70aabe69a4241e911a6335a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32300145 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa27f20b9718750fa76171a1e599603b4950797a66c2343cad38b3fd4777de59. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400257 — a six-check JSON result.
Fall til ro lille venn (feat. Johanne Maria Foldøy Hageberg) - Brahms Lullabye
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffc6998728ebd2eee0ffea4e93949efe22e0524a1aaca3a7af46c88971525cc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32300109 — a six-check JSON result.
Sov i ro (feat. Johanne Maria Foldøy Hageberg) - Snøfall - Nrks Julekalender
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8628d1ade2797f78b2600002c7746aa9e3f3e69ad91b3bf51de730373e0ea3a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32200021 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca9692ca116e2f4bdb144ca84ac4d9fcb527df1313c5f349a29c523aafe74d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32400251 — a six-check JSON result.
Lykkeliten (feat. Johanne Maria Foldøy Hageberg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9824eda08d972ac315b71fa8052e9cd86261499414087026efe8aa9fc46a8bab. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32200022 — a six-check JSON result.
Drømmeskipet (feat. Johanne Maria Foldøy Hageberg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb937885ead9ebe9b15202c62a8251eec13db17c7d286dcee722fdc18a3745b5b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32300110 — a six-check JSON result.
Sovesang (feat. Johanne Maria Foldøy Hageberg) - Fantorangen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3ef52678ff2a253e507601deb0fc29120f528aa6b3a2c279ef7342c504e11f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32200032 — a six-check JSON result.
Fola fola blakken (feat. Johanne Maria Foldøy Hageberg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98a7921bd23306a155d13b176ecc5d919d12e77766925ef20a36898ea19e98e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32300113 — a six-check JSON result.
Lille måltrost (feat. Johanne Maria Foldøy Hageberg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a51e695335add77c15d35c0ff4cb23564ae651b48df2fbd49f213157b0b21e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOAA32300118 — a six-check JSON result.
Nattasanger for de minste Vol 6 Barna synger