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 0x1aac04fac33d3217abf06b6d619b44b4fd3c37bc0f6b00a869089372066b6c36. 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/ddf99bd4-107a-4156-8923-6e0b1423fa3d.json and https://artists.proofprofile.net/proofs/artist/ddf99bd4-107a-4156-8923-6e0b1423fa3d.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 0x7218de5df1f9da44ce46f8e3f0141c51df997f89a8088509b6accf2f7dfa3f68. 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/ES71G1905727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6962f9c68c96ef4dbb7cf07066745d7d14643e7895061fdfd234d6d36c8fec46. 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/NLE802300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c97f2acd0cc9fbdd6d152c1623084011ae52ad6140554cfa6b81b493db9258. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL1ZN2302034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ca7b9ba5131800e6990c69e49b3097d59110b3e34654a8b1313cd671a1044c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL1ZN2302035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85df6b8962f65b6a35a873754c97ea0143b0d012fde79675034e37ce8e1f3654. 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/NLE802200385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858240d5d8c7a7ad778b1776be087877e356155ef1ce485e1ac10c07a3fc43e5. 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/QM6N22296512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49cea043a6744184d257cde45a919f49de9ce6019eb62fc9c698a0e7dc6e043. 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/NLE802200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5575ff9b0801713744c432d9e4f61ee96b51b9664a50bf8b8e224e89c3a6027. 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/GBKCF2201084.
Vicios y Defectos (Ley DJ & Alexander Som Remix)
Vicios y Defectos - Ley DJ & Alexander Som Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa441037aea546a666c3155f2cc0d566ef4a9483666996b31e246337b4f5b9c26. 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/ES71G2042948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd810e49725b256e31171b684de3aa7f28d434dd61d13902d519969ec70af1d. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/ESA012003637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895a16c0fcde6164ae854be1973dec0a1acce611220209890153eeb9e7b51bc4. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/CH3131900347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0464ffcf7395fdbb32c932b69a3b542d9c63a342e431d76af85fc9c2bee079c5. 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/CH3131900348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7218de5df1f9da44ce46f8e3f0141c51df997f89a8088509b6accf2f7dfa3f68. 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/ES71G1905727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0e732ff6d472e673d44d6ab0122766a48d899782ee31dfacaf82ade20b6d22. 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/CA5KR2415175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdead87ab67b25d8a4f5567b1099a0504f9022e1b87209d747ea190c5c0cff9eb. 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/NLQ8X1700248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933bafc6d7a3ba6a8007a95c70b5d0a609f410bd51e8d240a40ae903d88a4cd6. 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/QM4TW2546700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc0fc849cd182d28dc8146511e87da42dcf9ee0a0e818fd0ec7f9c4a71812c6. 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/US38Y2426048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33b752290dafd3b48194b9aa0311372a178f29d8c739622b9faf15fee60b265. 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/US38Y2414597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0879387aaeb543790925a1bc0e8f66c5a3421a6d4cf0bb5aff7d39d4f6be85b1. 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/GBRKQ2115323.