Naldo may refer to: Ronaldo Aparecido Rodrigues (born 1982), Brazilian football defender Edinaldo Gomes Pereira (born 1988), Brazilian football defender Marinaldo dos Santos Oliveira (born 1990), com
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 0x43fce0b503f411b2acb89eca87dbaac220e7c2d3d38710e76bf859e39561edeb. 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/a95d3d15-6492-406b-b151-e6d45e3328fe.json and https://artists.proofprofile.net/proofs/artist/a95d3d15-6492-406b-b151-e6d45e3328fe.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 0x4bc138b68f308c176504afc93a47ea379124327049fbe5d4036c30856757263d. 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/QM6P41987328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb515b6b423ac95147dcc1fa72176df1dd128b185f9d86541b57ad51ac4979479. 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/QM6P41992188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6da6c442d9af3740d3d163979d1940c5e49ca97f387fecd2cb582ca6c2ebe75. 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/QM6P41987341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6002d48e1b9466b8c5c660e9954d8b533c84861d9db775d16d96a48470eed012. 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/QM6P41992190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820651c6d066034bd6d0f0fa00fbcfaa5b34fd57c89cbec1ab8e8a82699e470e. 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/QM6P41987412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4ef87fc046b5421365f8887c61b240c4aece63c06a05ecf3b6b548d100cf0a. 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/QM6P41992192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaede654ae70d5f536d766688a37e169b42bad601027c52840d243924b2d6cef3. 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/QM6P41989082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c4f4833f8ef47dd8699734a128cd067e6abb2d1f33bf16df31f960028265eb. 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/QM6P41992213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc380dbd938b1e7a47d8040a182d3d62c0967664d09f121749549ca943bb4ed. 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/QM6P41989103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc679a8728b2c02684a965214d41d9b1d9f8ff6983b0ecd3f771e7d8127e6aed1. 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/QM6P41992215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967aab8e9702443954f95942f70982c0b13fe8e2fe283e1b88fa1f077f4f5b58. 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/QM6P41989516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c851bcd95e51a0723f913e3d2590e22a7f84aebe4ca577feeb42116afb68ea. 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/QM6P41992230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de6c91c04600f87c631bf9fe200343c90a37fd7c898768e6225ded32a57ae89. 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/QM6P41989519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdaa2d9d0a69e3ae92fea59db155f894a523ac504165b39cb4323b99738a027. 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/QM6P41992236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ce888298b341d021855f65ecd9d33894328da487ffd97abfd576bd22c123ca. 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/QM6P41989526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2665b1041a0beaab0cddd63b6d7478a088453eb8200faf65fea5498a5a5eee3. 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/QM6P41992245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b63c528dd81c1660de77097a231e0e7927e8073d344b208403d6f6734967aaf. 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/QM6P41989527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb709dcccd7a9b208a58c5d19b4ecf8861c72aadff7992cb875015ea7694bb21f. 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/QM6P41992259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd1608ef8b3bf992d7ed902e64e8a0b7e3c0acd7d198a6dd6de4b2822e547bf. 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/QM6P41989535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a9ac379641d60242cc5ba6031835ec33193e24baea7e8ba5c697466173d58c. 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/QM6P41992260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd58239b6e29a22d45b055492ea457a3dc64ae253a71ecc0407d058038ad7f4. 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/QM6P41989538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408911120826de4d6a68eaf47966acd3ac0f181cbd852c689a5e9e7bd1c7819e. 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/QM6P41992324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299671b0f3ac7d1f9936e875cb140b43366583fdecf8cf5bb826ecfed3992acb. 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/QM6P41989543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c899e278cb2d1c6399d178dc86e38df9b335af32842ed132b2efa03d38bac9. 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/QM6P41992329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cec7f9856a6bb561d26e03651d6874a6d1ee73645990bce0a40bb46cfb3b72. 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/QM6P41989545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d428b4f9e33a611387cf53e6293741588024bdf1a653b5017709f9d87e1af7. 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/QM6P41992325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f0fd6c3383a03fdc109cbe1e2488555f44fd8c9e43810fa17a00b8ac33e77e. 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/QM6P41989537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc483f7db9fdf1ea64b025f2f9445f02b47c58efb529b275c4973ea25f8889d. 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/QM6P41989533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cdaf724a29cfc5a8e12a6a1bd90987e9482cdae5d8c3a06efffcb796cf7149. 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/QM4TW2026876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fc8f0ccb8f8d511624c8cc119f58df8977f43a4f8453d099e41b21265dc071. 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/BRT301600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb951be092a7b4312cf33ead58ca2ce8bdb94d9da59bf59db736cff6ea375ad2. 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/USUM70808986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb951be092a7b4312cf33ead58ca2ce8bdb94d9da59bf59db736cff6ea375ad2. 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/USUM70808986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cdc5431c15f5c33723d0588fe1faa061d6a4c21dc38f9ef341abf7405a8b9c. 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/BRT3O0800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8359c5b59b7a38992d051f697a6da712c8ff877977c2c4834037721d8017568d. 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/QZDQH2141714.
Roc La Familia & Hector Bambino "EL FATHER" Present Los Rompe Discotekas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a284e532cbe462c5c0c709b6ff8090aa616dde22ee395f033bea7d85b7750f9. 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/USUM70603863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf725189559c7edb479483ee86ee0698749eb19adbc8507d232dd50b5df44868c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZ5FN1996580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf725189559c7edb479483ee86ee0698749eb19adbc8507d232dd50b5df44868c. 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/QZ5FN1996580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d5fb07b0f3c136d54685a9a383ceeea6058fc4fd7724ec4680faffc2f02c06. 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/QMRSZ1901499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1611f8f0b52373f41dce91e4fd0df122413ac033ebcc88bc56889224df51c7f9. 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/QMRSZ2001222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1d24449e5902656f6e0542d1c90e682a8306f0f01207014450810e5cf9ec0c. 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/QMRSZ2001226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718ba196233f126c41d2c841c35d31a34eebc746948b3d222d0b0317caddcc79. 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/QMRSZ2001236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfc9a2cf1bcaf5db2facb01fe68649ce12963bb105778a209828448617eb75c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BRSME1300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e6970d190fde9fad84f0841a2e6a46c03165ce850f67326b9746d5fcc52cd2. 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/QMKXD1300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5111577fed6398e1d7a05cf6384379b587773cba27558e234f76ba620b97865. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:45:32Z), 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/USLZJ1901532.
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