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 0xf752cc764cc523b5cd62ead2be1b68dd54bd30944c474f87616d83bef5aa7ed8. 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/408a79c6-1d27-410e-9481-96b5c6e68a23.json and https://artists.proofprofile.net/proofs/artist/408a79c6-1d27-410e-9481-96b5c6e68a23.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 0x95600a3a0fd4dd5c168d3c6f329cc8371b6817b3ca66280121c18acda3b56117. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZTB92264724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3e2cb942a48013015eebaf537b03b58c029efcc70268e2dcc22079152f4619. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZES91801304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204edfb03a69e489fe984281bc5ac89101647584350bb8881f9e004f58741529. 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/QZES91801306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236aeabfa1feebd0f528af0a872ceac5b5a0e21d19ee67b1eb433d3d2797eb62. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES91801309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3682eb049ac03889d1bfaa044a14bd2983fd1f47aa9bf909b5246e5f43ea4eae. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZES91801310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8e504d105c8d60cda74ed571c8bf1c2c01c2476deaf8cff27f11b559d31b91. Chain 2 (Bitcoin): anchored in block 957565 (2026-07-11T12:18:39Z), 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/QZES91822624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8657d6e48fdfd535e835079c6647944479c5e37e5eb0dc07b74698dda53732ba. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/QZES91822628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec9296579d21bf0b7145d06163318964a14c8986c35f497eeb9e29a2c0c50ce. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZES91822631.
¡La Música Sierreña Con El Show Que Tú Ya Conoces...!
La Música Sierreña Con El Show Que Tú Ya Conoces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb153a7128fa1325f81db6c481aa3d142065c8354ad813313b561ad4885f90a8. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USDXS1905125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5219500623ac688d7708c8fd5b9b457522a0c06d3d1af8a37909e993a655da5. 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/USDXS1905126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d2d9e76a079e8e617ab9b11c819660a94162b1f7a44f1d1627134172de8dbe. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USDXS1905134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740962df0bc941533c2f00fa2043edddcbbcdecf33dd3442ac7582ac3fe217d0. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USDXS1905137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a81c7dc480dccfab0dc71052816d4157f8cf949ee485d63eb80629b3a153065. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/USDXS1905258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b11a9bfc2c911fa1645a5feb7924a7925c328b3f6be3849d84d24fe8b9aa71. 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/USDXS1905264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7dde1d5d6baf055d391a6d9bb559e89cdadc028982852e96b0b99dd31c57cb. 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/USDXS1906874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8485a99c4c5e3ead8af0ee916cc0a568a71baef5030e2ac0ec92e909dfbf95. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USDXS1906880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a6f78a68a798b09e3879e1cdbc760a09b4e10b7789bafb27392552df017058. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USDXS1906883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb165bcc924c815ba4f135bfacf23345a739d3b276c8c6f58528c2d7a2e13e11. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/USDXS1908069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9664b7d37a314fc031a168fba41b97254683a7d4f41c212422aa444592f79f. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USDXS1908075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07ee007bef6a30d927a8f34b129d550fbb335b18f9a49c6f9d7a5e9788836e6. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/USDXS1908076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480e3f55792023f35a5bf69816b053a1e9bff13a0c416b62d2686552d0c468f2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USDXS1908078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7beacfc6363d03b87b18b86686178d3ed6cf84c757e7e7de76e7a52ab5f005ab. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USDXS1908079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b60a68eb768013dfd06ce26b7b9f384d02dd3e9f8ff3d5a6b4da77fbcc631c. 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/QZPLS2287290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec965ae4ec90974517bcee57efe667c2f7a0da50fe770d2cd5dba4af1e4cc03. 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/QZPLS2287293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3028f5a0c7d59614ab289d5ddf1198b86c8408e24cc25c164748e31eb05682. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZPLS2287294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4790c646e594011f5ee16159eb5ea3c15bc63c5d7570437dc483782ce65476. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZPLS2287295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7059887157ed2b39e169268d32229f235fcdc66b2e93b7c588207bc2bb6280. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZPLS2287297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a34ea813dccce5660f73b5b36219c259070f996bc11e65c77c3a16d40e962df. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), 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/QZPLS2287298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee944c78a1d89ad0dc984279a868de42a542d1da3dad1e723b1a659bc187f93. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/QZPLS2287299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98354989a031c2f7d3957733a1dc2fbe24705c06b65a5c0bbe8ed66e3aaa3e3c. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZPLS2287300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1825d93d939a89da15db82ed2045bcae4ae933bba7c4655c444abe6c6aac48a. 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/QZPLS2287301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6431699f8023ca9af1eb7a194a13b4a3abf194974a0781a44e18a7e4a217f1b3. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QZPLS2287302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97a86a5bb900bd4b02fd75144ae3e55fbf0c8e1684e90b664e15ff9645deeff. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZPLS2287303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f136d4f2f8430534f6649a7f885a83b7f660d795ca7c4372e7251737a8e4ac. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QZDA52358810.
Corridos en Vivo desde la Cuadra El Buly
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc585f4735fcd1257b0dd5265b9ed0e186aa166eb4666a1d0124c080abb941fb. 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/QZDA52361462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15c5c1cdeccfe2d38daf3b5b697a323fcb68abf25b8ce33fd2cfd7022f81e5b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZDA52361463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc1a90392dc5a6b5831ed9b99b8ab10832aad8e1dd8483b942d2bc863938f84. 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/QM6P42466597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95608bc473b7b4bdf010dc400a21b6cdaf31c34d3ec57020726b68eacf52b58a. 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/QM6P42466625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7d89ff920f8770df2844d60470521f7535ff5b5c1e39664d6be824237c548d. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), 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/QM7282402011.