Birge Lønquist Hansen (6 November 1945 – 27 August 2004), better known as Jodle Birge, was a Danish composer and singer. His most famous tracks were "Rigtige Venner" (Real Friends) from the Norweg
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 0x6bf3e33a395d1c1929c09081e1d18fe56e6c8aa3378d45aa8a0fc2408f0e7bf4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d0d4c07-ce3b-4bd7-9443-f041726f3268.json and https://artists.proofprofile.net/proofs/artist/6d0d4c07-ce3b-4bd7-9443-f041726f3268.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 0x8b11a685e688a71241a89e79c51f2dcd3792cde01f38211416109f6486e29baf. 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/DKNH31600503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04298edba857c9c7a8d658e81f97f32000afd368743f018d345cecade3014050. 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/DKABA1400186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acd3b98e4b72139614de094353d0e1eed6350ceb7166d0b873a9769328bd8e5. 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/DKABA1400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b3aaa8d91290a13787ef01394e49f95b0466d0054b9432c239e06847c6b9cf. 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/DKABA1400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d281290136b4d5cae4d1016d73b3331f5848270aed553f712a40ee6f3ecaee. 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/DKNH30902110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2982bb52922ce5ba3642ccb2debce4c13eae23eab42fd79be467c6d3bc50e9a8. 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/DKABA1103551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1048c8231aff1fb76b363cac5bcdaaf9594038e028b0c88698e27a144515fd0a. 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/DKABA1103560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc3d784d1ed12ff626d10ce7e33bf103ad57c0be204fa0aa17e2dd23464af5a. 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/DKABA1103563.
Rigtige Venner (Det Bedste Af Det Bedste)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc362650523a45319d67de546229b43c5bb0f5d7115b44e8509965ccafa83ff88. 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/DKABA1102985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4d19ee4087536c5fa162a50116c36e087bc705e363aa05d06ba43d13f3837d. 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/DKABA1101827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fa5395d366c5608a2a1f11f11b274054c412f347553c79ade8e48fd87fa92c. 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/DKABA1000983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce2e0dd9098927e57f165c98c6544392322d3d74a66b637b970b88a424da06a. 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/DKABA1101470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea2eba4b3c3a1db9c2bd85d6ee3a2aaa6fa15bec53fabc2731b996ffb90fc84. 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/DKABA1101471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280d968966af3a9c34607dd2712602c3057ba28c3a26494f56305ce24e61a1d0. 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/DKABA1101472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729ebcf913548535acc19307e20225a0cd5c093a3f67193973d3847ce007dcaf. 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/DKABA1101473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b6e5843a6d323bec6a5c202cd7a166719003c2de8021a9a3602186b077f212. 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/DKABA1101489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20290351f4ef1598ac9ccce1c281e3e57ad7aa0236761ccad7aad3edd9e94691. 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/DKABA1101474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8c534522dda509a3e7488b27dcec0ec779f1cf0d58ece73eed8c3453546264. 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/DKABA1101490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb157ea6cbda38ba378d1b0ae5eced1689957cf2b00c18c678e9a73adacec7b21. 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/DKABA1101475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb68d4e35afd7bc9aac85a0d12f8f27e43302c0e1eaac4522080bcf120e0677a. 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/DKABA1101476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae380691445958384823184186cc068f447606615dc68f166c98c44cb8d0a80. 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/DKABA1101477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74b1f8b5a587680fdabde42d32d176055623872c3690057d020ad49b2644f43. 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/DKABA1101480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde30099b2cc01637e6d8b43a65a57e659685f587460f105658d14b8dc299dca8. 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/DKABA1101496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec81a3dca0e1b2b9695ff3c856482ee1f946f2ce85f55286e2ab45421fff7d2. 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/DKABA1101482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de24edb8cc21446ee5d8b36ff565930566f4d2ddb8db0f97893b2ec14d7b8b4. 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/DKABA1101483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409c0582619a226efb84be5437b9a21b09c6c5fc40a025671c146759b29e08c6. 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/DKABA1101499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5f31059c60d5242250f11235712abe83696e6347507311786055b8661ce941. 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/DKABA1101484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea2eba4b3c3a1db9c2bd85d6ee3a2aaa6fa15bec53fabc2731b996ffb90fc84. 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/DKABA1101471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c1f8be3958afe09eb86a6fba850f371fe706c6c0ed471eeefc44fc21dd59a1. 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/DKABA1103107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a571a81d981340879899b547a675689788f0f2795cccdd9d99b52f376b5dbb0. 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/DKABA1103108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb4de2a1f7df0c87a948aaa2ba2d513cabd4b6c1ab24e6a362310335e4d6e43. 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/DKABA1103112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb293eaab2c3c8453162f8a2aef58dfc1ea0479a44e46e171a91073f5b3887285. 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/DKABA1103113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33123d38a613330f8d6c7355985c50f42f6c4572b481b284cc4437b2b1c04c30. 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/DKABA1103577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d8d960ba9226376fa640c345148e82e5dc66335e70cf8ddfca70955ad2a22b. 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/DKABA1400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128678d5f99460b3defc0cddd88f3d2c19f2adac019513f3ec4915ac2879c387. 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/DKABA1400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282917ae7596c6a6fca1be6153ad8baa2bdcf7fcfb8c2ef0c65ddb375be2d179. 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/DKABA1400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0414d96817a9b0908b47a28a6e18733e65d3ce7c448a6b4d457e12cb2467855. 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/DKABA1400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729ebcf913548535acc19307e20225a0cd5c093a3f67193973d3847ce007dcaf. 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/DKABA1101473.