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 0x4f6effff0cfb5e868df954faeafef384e3f589a038c70d2c6bb856e78a8720e5. 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/263a9f64-0ed6-4322-ae34-e28f32917fe6.json and https://artists.proofprofile.net/proofs/artist/263a9f64-0ed6-4322-ae34-e28f32917fe6.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 0x5251b30b0f48b15d9ad59946647338f32eb7e062e988c9defb181d4be1a2a636. 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/FR96X2240215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19042bf76a2bb8c1abe4ce30361b4ad4d3ac783b86c109437c442b51781715f2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG1600048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe656da6bce6a0796b00c87c1c24e3f76b4ac24338c76914f789ad704459bc341. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG1500366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b3213a99f54674ea57a80a30497b2db56fb08f58db1d0e54a828fbac759484. 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/DKADG1600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26dd6eabef315c46f91ac1933ca5c95ad86397361c3aff472bf42feae63976b5. 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/DKADG1600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f00832c2d0430770f9d72fca426fd73110085ae0ab9259e00510861cbd20b5. 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/DKADG1600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99151986c497238785e902ca0c13c81fab97dc3faec7b53e4cd1c3fbda55c03b. 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/FRX452489271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19127717d0da21e51b648370e2eddd86a4fbca8f78ebf24fcd570d57f501d199. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA0Q2353096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0324d6c274d08650e48807643b2ebf387d9484298a8ac4c4c23557a3371e4481. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX452386114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bc537eabd0c30c904ecc48cc96aa5944ad3ced0a75aa06ba8ef5fc5f99b298. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA062202616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3bf5945a64837a267765e388d300903633d6928b44c44f65f0e67d9b63a275. 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/FRX872244053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2ea622498c84d4e37c32746d24a1a26cf93770e1061dae4c1571d45b6ea3ab. 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/FRX872187708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5eb99c52dd88444057be550ec596455da71201269e3e58d127fab004d90108. 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/FRX762086050.
Lidt Mindre Ensom Nu (A Little Less Loneliness)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8121c55147a1a598a82333f0f4e3be16947e644ca1d583b66e170f22722d8e22. 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/DKADG2000617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02676b934c50b52e2a162350b29029f01ef679bdb3e1aded4b692e8b20b5ebe. 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/FR2X42009111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5342ccd9562e814b58a476469934236dda359560bd9f21db954165f98382cd4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX201994614.
Ost og Ansjos (Fra DR Ramsjangs "Madpakken"
Sangen Om Gummi T (Hvem Ved, Hvad Der Er Op Og Ned)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b132a783f7be286570bc125ad9e333872bb4701767e67d857203f767051815. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKKN31200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312ac1d40b55e926dcd5765ef246bf75d2f742b734331d3159d18d1a7af5bfb9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKADG1400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50761f7f05a7d290209570c6ade4ce617e3a88b9fbfc2d30ac90ed80ac0fc192. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG1400303.
Her Bor Jeg - Alle Tiders Bedste Børnesange
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4e241a1934faafd2e4e799a3853ae36dcf2639f55a5c2a6e715d2e2e3085a3. 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/DKADG1200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518bf47f087c979240c93a44e8998add45c05646a74b99a09729789e4107bad0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG9901803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d452c35b4f9b7209d49e895132cee627d1f9e174da27b33bd12eeccf501011b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKAXG9300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe683e4d0e3b6f28b057d31056f58374c1faefffe5f59839a90832f1620770a. 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/DK4YA1002303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c42fcddfdebaa2b60c2158e3082f149f2662bace7624aff143ae4f20f566a30. 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/DKADG9901809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71773b0ecc4c60780ef11445c13c2ad628428de0aea087f0f8e9fe0d9e26190c. 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/DKADG0800336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40657d8e0e0b6f19a9ec769dc8b7cfbf68e12824edc8c17f93c6cf8007ac2f67. 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/DKADG8600213.
Julestjerner- en julekalender af Wikke & Rasmussen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46f2f4a41de52218bc40f79f72389bd1c758403e70767fcfa0b09bb13b7fa66. 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/DKADG1800385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac85a452c21f95646bc89eafcbf53d360cd44b0c60d822c41e3e8d8db906a2e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG1800387.
Toppen Af Poppen 2018 synger Lis Sørensen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2d524408c085db23151c8163f8dfd3de52a81ca3a6f85d4e1c439babded7ff. 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/DKADG1800414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf89cd4b4d8da3b0d4c36da7d971317ef945f110ce9acc593955a56d197037a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG1800417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886756053b46853d6db693e1d80caf1e89ca6e9d65cee9012d502e925f22f81c. 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/DKADG1800419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b8c682c7c5aef45dc794295c0e7959d60b2ef41009ae6f4eeaa5625d80c3a7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKAE92400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fc34a762409f24fa0193f561e48d718394ce54a598ee288c773a5276e1bb33. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG2000657.
Toppen Af Poppen 2018 synger Turboweekend
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380341f94889cd0075cc203817b9962188b22c17196ad9bb77075f5d01a85c79. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG1800437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8121c55147a1a598a82333f0f4e3be16947e644ca1d583b66e170f22722d8e22. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG2000617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241aac4eb6f26779934e98047ad83ff667264208c0be1f52d92761aaa97d9222. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKYJ31300201.
Toppen Af Poppen 2018 synger Thøger Dixgaard
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41595031a1eaec1f25247af00181ee886e82531725ab4f9e2e5f7e59f02f24c1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKADG1800389.
Danske Hits Igen - en hyldest til den danske sang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57017ca867e48045c6c295d77426f14c97d608111d17d3ed6eadd55f74f621c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKQ892100501.
Toppen Af Poppen 2018 synger Pernille Rosendahl