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 0x9fb09d83e5acd061518e931d12d5968448de9b55ed484ba252287f11094358f9. 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/706cca51-7493-4760-9704-704ec235288e.json and https://artists.proofprofile.net/proofs/artist/706cca51-7493-4760-9704-704ec235288e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Melodii de neuitat​/​Amintiri de pe Pamant
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 0x12906c6dda2ccae21e2fe1800a634406b9a0f9b1ba58f09433f30c8b5c459a2b. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/SE6A91908160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cc0bbf96fe281fbcf03878e6fdd8086489885745ac31d46b8e860c1c896d0e. 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/SE6A91908167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1e7310f83add396d26611db1cca94719985c66cd15b8c15d60207b41d27867. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE5BU2142454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624c8e403350a5a5a4332aead03eb48e4404649a8559b9fd1fd5bc073c536727. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/SE6QE2165628.
într-o pădure pe hokkaido & liviu teodorescu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33f6d46efc0d5cf30ce0cc774d9f490297d37a51286209fddc84d04b4b7055d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:53:31Z), 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/SE5BU2504632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc181fcb45edb287b26f706c664d14d0c6e731499f3e6252218ceda156e9d0aa9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:08:51Z), 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/SE5BU2504633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13e834f54456c39c462222d8754b4ff14518c1d91fa108a0b9f816c9f979cff. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SE5BU2504634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc40ff4da6bd91c97f258893961a64126ed602d0d1d150eeca12ce91f316b575. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:05:15Z), 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/SE5BU2504635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cfe9453449f9297ebfba594a0d2ebc1ab23584984dd71d786318950cc8c0e9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5BU2504636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c402111e0daa42151f5df561cd8d6541fc0682af43ffef5cd206118fc27e6ea. 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/SE5BU2504637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf033dd46404507e70902dbcde33ade12f6cf73833addfe878655ed1816fb64e3. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/SE5BU2504639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3288655a7006337f2f3db53a396c8b04ed243cfd4c3107984ff4ce3ec4564163. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/SE6XX2550174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ac3f147871f3965bba76c1271b655eae3c208b0ced606b337405bca31520b2. 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/SE6XX2550175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62736deb8959cf3683ee6672cc352f9f1dc2b4e64a1e354a6bead959c60a209f. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/SE6XX2550176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30518f64ff99d0d0df27c0cc0c135f8ded2e00af2d65ffd20657e142c0cb7121. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/SE6XX2550177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d717d22296ad50116cbbd4f5aef7b3fbcdf79b188a2f4953ef06f38c610d477. 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/SE6XX2550178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc724e474820ab269b083ff4a0594c8d6b3f8f44c0741f2f4c2bbbaa21d1e2562. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SE6XX2550179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e21f59d9ecb219961166c101bebcec05f1bf95e1180dd4b3b72a6bad152228. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/SE6XX2550180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde168c5c8b7ed8653888b4d0119b9cd6a32750aaf019a78dd8ca229b46321390. 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/SE6XX2550181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba735c23df9b4ec54a3da776cbfe4fe9483b659404cfaa81062968f686374ac0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SE6XX2550182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093de2e6d9e0f03e6e13bbf4771289836e1b1f32285aa32f55a9dc44540a9ebc. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2550183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456110a471d628819499bd5570053dc61f81533e27609eb84e54500f9ff100cd. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/SE6XX2550184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f6924c8f752c61e063a93675f12a9899b14bc4defdd16923a36b92827e3f4e. 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/SE6XX2550185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50c8aa1d70872e57f48300348d4e375365a606778c6cf55527f46a8048f527b. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/SE6XX2550186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6619e6b0b15e91d45d02ee4d365ed5a83021e8f262e6cb0d0f9ddf79dfe30bfa. 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/SE6XX2550187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe908e052b521da8e6879f0ec2e4d046ccd8d7a05f301cc6e310859e16594ce2c. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:30:24Z), 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/SE6XX2550188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b3ce9b407459ac440ef1f5e3300dc72066bd5a4801699982b6a8eb5e338e76. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:55:09Z), 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/SE6XX2550189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be04d7fc2e0a150af36cfd9ddf6b548c597cb8d70aca0b9065fc20cc19c37fa. 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/SE6XX2550190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d9e34c1dc657e7f91aee3f5be489206d5f47ec08c7325b5809c5bfe6e9af2e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/SE6XX2550191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71d70a93afaf89ede1d3b8abcfdb0bf88fd76516c87c796e6195d859e7c2313. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE6XX2550192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda29c322ec83cbb9ab43ef2f7752a34360bff054724495f7c1752facfb7de39a. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:52:15Z), 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/SE6XX2550193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bc072bceb21b99ac931fc0d14363d4c9b7f2772296011f9a2fdde091e671c2. 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/QZFZ22121177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f14b67c0dc9b7cdf029410ebcc4346cdee226f3d25f2e337de0527ae3e21b1. 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/TCAFM2121408.