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 0xf8ff7f947fea3da7996676f1ec3271a3043a74ae31de1f8d108678dab978c809. 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/bfe77100-d544-460a-a331-bda5c70fd4b9.json and https://artists.proofprofile.net/proofs/artist/bfe77100-d544-460a-a331-bda5c70fd4b9.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 0xc8f9c08c1f34ed3eb4e87e5a658427cfcb542278b0d662640b30091815568e7c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLNM32000400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278234da02c7bec1764f4b24bed4fd145f4396cecedbc11663cfb60c24fc9e02. 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/NLNM32000500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00049bd81725979067a563fc4918f189e12a1324b9c658e5ea5dca7a2cd624ac. 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/NLNM32010400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b21f96dad85ea163a8e27c5eb0cdb434459cc2bd808066e522eaa461dbbd85. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLNM32000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7870615e8482056061f470e7333c4f69a8ac720c716cbb0c5402921d058fa8a. 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/NLNM32000700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cec4b656c84e864d0db1991a06eb1dbc0e335627a815ef147c6b4accd2531e. 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/NLNM32010401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5eaa2e49224787ea012bcac08b4300199af602b87321d04bce6c67f26de7cb. 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/NLNM32000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347123585f7193d3c28730c7b6cd5a99219c562b811d086230c19e9f610b2c89. 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/NLNM32000701.
How Do You Do (Vrienden van Villa Pardoes)
How Do You Do (Vrienden Van Villa Pardoes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8758cac564808927e15c9d8775898501db1f51a5c0b9e7cd7d67796154289a7. 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/NLS242100622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c93b96e041917604d2139b2bbc56c524b71067ddc552cb1067c545f2490d73. 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/NLMB42400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13654adeb4fa5a9a06da6d41c4041cdd0d47e196a133a2a8fd8e3f11079ced6c. 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/NLK072300582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279d521dff95138aa03f9b5908ccc951a51f8b0bebbf0b6e9ed5a354c8f4bb96. 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/NLMB42400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276214b1daeb9a93be532150abaee84c1722f583abe848c24c48f0c788f99ed4. 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/NL2RG2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36817421297df038feba483444490c48405a0cc51c8aedc5dd1808ccece70858. 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/NLMB41000179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3038d0d9ddeefaff5f0f412eeabd28bcaac61e80f13da523d25d22ab54ca78d. 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/NLMB41000165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339fa993fe68f2da5137433044c51317c0fcb16d08171704c73d4f03e7e5ef01. 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/NL1DT2200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6649ebf2988a4c7f7070b344f8d07ea5345ebe79a272abde879f0cc8df6d23. 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/NLAM42200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4efecf4c656113520f13f8d50376646c6ac81593c4aa11e1f083240448ed2a. 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/NLAM42200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23cfaf0aeca352a74e67098268beced0013b0cf3512450081037d0a40005223. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLA6A2100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7acadf940b9e03f6da1038b16d2d665451666772b327bbe2545c6559111af39. 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/QZK6H2158993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541ef98cef43b2b228117728696bb909fa186b5de8917ace8778114915344195. 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/NLS242100223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8187827cdc89836662319106137adc6b531ec62204c852c093fa007f4c2ab43. 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/NLNM32001000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fa7d5c4a1d19a77d6342a4d94f3e371ac6c7325054cdb3996b2088a79a9269. 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/NLNM32000900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd055514f1d9638b18df6aa39a529ab490a2cad0a4c210234cb285de8a7081a66. 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/NLNM32000901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe311dd7af8bb9eb2dd8219a78714af470c7ad439a0b1c6ef10f53b4007badee1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLNM32000800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00049bd81725979067a563fc4918f189e12a1324b9c658e5ea5dca7a2cd624ac. 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/NLNM32010400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cec4b656c84e864d0db1991a06eb1dbc0e335627a815ef147c6b4accd2531e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLNM32010401.
Junior Eurovision Song Contest Poland 2020
Aliens - Junior Eurovision 2020 / Belarus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f0af4bed0a1d9642201488d3fbb73990214f1768cb3b36f9a94be1dbc6f131. 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/DK2DY2000008.
Stronger With You - Junior Eurovision 2020 / Germany
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe238073532fc2e4ea0aade85e82dfc70d89295f781535754cff19267d89ea28b. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/DK2DY2000014.
Palante - Junior Eurovision 2020 / Spain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc180d26af7304b8b310ea0fcfe31d0840ca1498da3ff3217cbecc176524c3b0. 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/QMBZ92052374.
J'imagine - Junior Eurovision 2020 / France
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24656c730ef785b4e77e51e7df4b1e3967343a3dbb0cd210334e79a2538781c3. 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/FR8FB2008400.
You Are Not Alone - Junior Eurovision 2020 / Georgia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a5de7aa2b36241e3143234c1b5befefebda0797d69acf95da981d2c0cc581d. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DK2DY2000012.
Forever - Junior Eurovision 2020 / Kazakhstan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f7db610d569be211fba2f81615c909f575258f50707ca6750eb6fba5a8812e. 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/DK2DY2000009.
Best Friends - Junior Eurovision 2020 / The Netherlands
I'll Be Standing - Junior Eurovision 2020 / Poland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a6cf728d04e45de795cf820487854ddbf5cbec6c0c13620d8ae6f1d55b142d. 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/DK2DY2000010.
My New Day - Junior Eurovision 2020 / Russia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ac23f13185513ae459c67e891bfc7288f9fefcefb6d2322ef39c6fe1a3b195. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DK2DY2000011.
Songfestival: Nederlands Trots In Een Nieuw Jasje
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49260a6deccdbf22999a3fd89e49e0ac73a416a3443f0a73b1e8601652f115f. 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/NLS242100214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7e38d412a9eec2c0899a619d051ee18fbb350e42ddf5b7dd91c329375bcd06. 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/NLS242100221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec56d87c944aec9212fbf152308259d0cefa5083f736bc26decb7db97c7d252. 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/NLS242100222.