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 0xc07224eec8228f9d3cd924a74574a1a1dd7ca35ef08feaf0bf9e2e9ed2f9ccdb. 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/a897b216-b6bf-4c7a-8ee8-5c6cb54b0cc1.json and https://artists.proofprofile.net/proofs/artist/a897b216-b6bf-4c7a-8ee8-5c6cb54b0cc1.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 0xa5e6fe2ac8b4024570e71b77b77cdd835549c83a95a76fd38b9274d03c30d367. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SMRUS0037458.
Здубий батець таре (Здубы играют весело и громко)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80303babb916bddc87cd389217b8280b9875c98f5a592b44a72a2726639d8666. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SMRUS0037495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf295bbaa073624a75ece7e54881de4d71450974b88d31a4bbd67b5e710b5806b. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/SMRUS0037496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e8979c7cc2eea47f2107428c94b96f0685b6a1a1ae531d5d879e268f5b4c0d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SMRUS0037499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ddfc07df8a1d71ddbd4183c57f28ffb165a523971062812786867e02b180d6. 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/SMRUS0037482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232f48a4b607a92f9e98303888cf041e9cd3cda9326235c6460c6d13e10d2769. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZNJX2139564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b4b87485240d6622270e2232f13c84ff0ecc6021ebafd49fc3cc5053a1a984. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2139475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9591e2e34b8d5a01a345e91ca3a9dae6bc68a9badadc1077652981e6ea93eb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2139477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035f01fc91558ac0d68583bb2f3e3b654cf5e47333c151c8895cd38cbd168421. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNJX2139478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2adccf72d93260b1a49df7391ec86f80e717a4d583356ba6c3c56fea9d52e10. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATW050377020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ad3ed3ce4853560b54ab52fa3a2589e8c98157d201efa597fa1181ea478cdc. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ATW050377040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6fb60114a81a9ca82ac7ff2b75408dfc502015d3d26223ca488c79dc55c002. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATW050377090.
Boonika Bate Doba (Grandmana Beat The Drum-A)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b93f395f86f268f6a9ceb9e1e0a9fe2088c420d1daf86d904b34f502d9ad78. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATW050577120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b92f7ed407f31009adc1b9731107367bee6996edace072ea7783b0a7edd2b71. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ATW050577122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0d78eb1d5f17c6a6928bdcd6797b193c5b263b8884816aabaec9bbf907d641. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ROCMA0600733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9813c90bbbecf67e31d731e680ec41323d78bec5f83bcbac70d0ac2bfad18ae5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ROCMA0600737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5946010ec167273835426151d56074e3751626411ffafd26b47d7789d46e6db3. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/ROCMA0600742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666cd0749a3f2ab82fe40362e337a4cf82bed20cf79044e766e556d82a01be2d. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ROCMA0600747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fd7041cf35b3ed28954e7d724af31a9bcddeca97fd2c29375968538e59f59b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ROCMA0600749.
Zdubii Bateți Tare - Shantel Bucovina Club Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe62433f13a9b5c5645a0e478ca4da0376f40ef5ac23becdd58fb2070eb7f55. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/ROCMA0600750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d146a5be225c6a0e8efaf2a079beb59b2ada19a07652bfa7b45ac65434cff4d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEU331100339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a532a0fefa5b290eecbb4a904eb0f04d80bb1fe564c59dc1cae86831411995. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ROCRP1805150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5720a86153a00e52d879957885bf38a3c818abdc709d5841424757a7243a4d33. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ROCRP1905314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc750f4668c8f363561ebb5594b4a57055a9f1b28e1a91ee5c5d178adfaa734a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ROCRP1905317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c89f88f81712e435da01b8ce194d301ac740d2f9c46b1e8012b0671f7c82af. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/ROCRP1905320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf401b19ee2ad8b5d570a8bb0c9e02b88a84af09f05ac2bf23048956fa973881. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ROCRP1905291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4aaf27b058640a87a2421d393f80d7a314066b607039c65a983b7268d872ca. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ROCRP1905323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93146591939cea63ff6bdc2016b7ff504dfc6506ef7f520c7088793aa49b5d52. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AEA0D2044592.
Trenulețul (cu Frații Advahov) [Eurovision 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114c9fb32b67fe86186ae48404a2df98cd964a1970bdcc91f1d0322ce6930801. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ROCRP2306000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88418152edb0ff5055bb7c780ab4849ba40824435ad3b9bfaeeba21001deb967. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/ROCRP2306015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f21dbaf8a35647d1ab36e095acc2815bc44ab09c458725950d73aead344e0fa. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ROCRP2406047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d7cc0f6c22c4cca641533f450c404cdcef6692bff0e8a72f2f33e588853f7f. 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/ROCRP2500003.
Trenulețul - Eurovision 2022 - Moldova / Karaoke Version
Eurovision Song Contest Turin 2022 (Karaoke Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5e464c04055afbadd8e5dcfe9083f302a9af737988b5457de19d19704e9090. 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/DK2DY2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c6483f920398dcfb240781146067b343cb509a384c0b692468fa4843b2fcba. 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/ROCRP1905319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecb3275d5e6fe36cecd6af31df3ae8395e7a85ba219ab88fc6e56ee6f9b5405. 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/ROUM71600209.