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 0x718d6fb8cd3f064a85bb9a6b1503c9dcbae72ff5caa3ff5188d62b68a146ccdb. 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/d854f3c6-4e6a-4c79-9cd4-ac875026753d.json and https://artists.proofprofile.net/proofs/artist/d854f3c6-4e6a-4c79-9cd4-ac875026753d.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 0xc275066a9d0f057fb5463a3bb6bbe5e853529883dc70f4b5b297a9127199014b. 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/ARAE52300229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e0c4835457332accf8c8e0bc1b1bae0539ae7ebe7a4df6cfe4880335939120. 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/ARAE52300263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7a1f338bfc599e86cea99040cbbf030c8bb4596900168cf41296a483079187. 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/ARAE52400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b784cab9f59a528e8c83c1e9339007ff9e6adbe50a2ccdc9c4881d6c9e361e2. 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/ARAE52400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b171976bcd0f043b348545d535ca03fbe072dc815f236404afd155787c90e5. 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/ARAE52400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcc70eda615ae763e288c80225e27539424bf9a66c2063d5defab063c3adb59. 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/ARAE52400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9ef181ea9cb703155a1b7cadce01a8377d1cf36da89604b8aa7614faa7eb36. 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/ARAE52400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5299854618702a097da311ad8a863df159add663e740cea1cbf045551f76739b. 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/ARAE52400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ae7811d43dbf25ed8b5f5fb5d02170b70c8f87b0c0ba96de858d06918c0203. 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/ARAE52400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050c1c96d7adfe7ae09058560942dfba62e1c01b16662d707fe3b4aefc6a7d55. 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/ARAE52400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53cffb6ef95ba3a095eb8dde3416a984f0037484e60846097562d43ee1bc8d4. 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/ARAE52400129.
No Voy a Llorar Por Ti (versión DJ Remix)
No Voy a Llorar Por Ti - (versión DJ Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f840873f6918b92414073d9de51ed1fe98d9375531d0333d8d59d6e138b137. 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/ARAE52300273.
No Voy a Llorar Por Ti (versión Techengue Remix)
No Voy a Llorar Por Ti - (versión Techengue Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef0fb30638be97f389038090de4f9d5fad9db0b8ff2328d85a0499f739faa11. 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/ARAE52400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342f11ef1e34d2e31e9cbba8ba503334420a1365d8ef938c981afe4b3f777bff. 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/ARAE52400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54f9f6f06f69eac664bf36e18519f1650032c78b90ac7dfceaa150b0ff730db. 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/ARAE52400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e527694cdc410e0f2777eb9018c7325d3334e48a2d0762e4afedb3b6afaf24. 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/ARAE52400237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4831dee5f847b9abaffb68bdc63c5462197c6f36402c55c5900e69c51fbacfa9. 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/ARAE52400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc565d446a10ea17604db0b4c0797516a0dc0245877bd2150f502b3f26a657d. 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/ARAE52400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796befc2befa86f18aa71bace4cc035805fb01b05147474f5728ba61352c4cd7. 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/ARAE52300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd40e1f4bc400492ee31f47ed2eb372f47bc749747f65b5d8cd31d76ae231cf4. 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/QZMZ92345130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c31e2725f1a05ca0338539cbfa73cd217d6bc13022251fb0ed4c9bb15c82318. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ARQIH2290923.