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 0x0a236efd7c69e0466de61a77465d0299d6ffd87e0b1e918de56e28ec06f4ba09. 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/2fc9a71d-8298-41af-8813-0ebe2d180b32.json and https://artists.proofprofile.net/proofs/artist/2fc9a71d-8298-41af-8813-0ebe2d180b32.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 0x6981d298f32b46373c41b17f960ba1bbd0c6b176bf7766b5e50edebeea9dfd9c. 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/USHM21636360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb829a86c857c3f3a46f3db898693827dc99639226f83a4c2c04e1c1fcf25e760. 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/USHM21636361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c31664ae44b9cd141c1ab76ce0811836668762a94b60507810007f66f7c530. 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/USHM21636373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdf5a5105a33e06ac8394eaae3f84fe0d3f5a421245a95072c30d1e252a119b. 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/ESA011942311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f99a2ffb8a70df6bd82bc60200d56621be1c3330ad8bc8330756616b6cf0ea6. 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/ESA011941265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf824f6184e6223417982e8c5354f09ec43d7fd23c7af85b521239de21eb63aa. 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/ESA011941268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569f7ae2126f869b45ecd5bf9976c5a4118111edaa41083a7b387d4d170afbc8. 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/ESA011941269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098a2aa44836fd9e3488af25d28b330b22b4612269574358b57f88c2292d16ec. 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/ESA011941272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3f5d638a92d150142f754391559a4f5914d8c75f71b3eee8034a8ab86a2fca. 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/ES28A0810093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531b6371ff1912b8268a901f72591969aa0563b15f58bc21a0cbc5e41fbc0c2d. 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/ES28A0810094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662b0836272193aa1ef9b0d75b941a007b4dd112269c0c2071a78d1ed5defd66. 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/ES28A0810096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf38b995a06e9c8ba110a0ecf47d1dd5cc502cb9986df8219db7097523e1ab1. 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/ES28A0810097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de5e3ef27527fc80df710d3de8a66b5416cf80bc72e64f2fcf4f836f9099089. 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/ES28A0710082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6182db01e2f5031107ea83a61ab44b0a93e7737a94bda4cf345a53da1937be. 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/ES28A0710083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed0e82a7e7068ca7ea9400bf3cbd434d62b8f123c156b0bcba2b92a496db6b5. 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/ES28A0710086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4324ec02fed0db325489159450e6aedfe5deb8d4efd69ff7a6820e3023ba06. 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/ES28A0710088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0dad4572b2a0a9e0723dd2646cbde965700d9d5bfb8fa4c00d9170b4690438. 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/ES28A0710090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a38020d228fd93a0096386c9a1885f9d5235e40f42d904425a6c29db8b1866. 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/ES28A0710092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73368eb5241c3fbf15db9e25f29dad9e892a428372cca9f0234cc1b1276fa1ab. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ES28A0710633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8abad5af5f6f6cf63102769a34e622babf314a78d791d8138a7ef9d7109484. 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/ES28A0710635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825931c37686c480ea3a30e997f821da7629a57352cef711a5171b105c90348f. 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/ES28A0710636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a17fe805b172fa1de8f7d7ccfa4bb7ab149df2eef3b6f4c08c2ee6463efd1f0. 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/ES28A0710640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d007957767f40666a606d4a9ce5751aaa809902c0f5ddb5ded750c2d276ed7b. 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/ES28A0710641.
Activo pa' que lo Sepa (2024 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12361b5a3398f58f6bc24cfc81ab7fd1bfdd5d8a4cf0cf5dde26a36556c17edc. 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/QZN882075300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ded65db404e0349b2906be8861161754ed43f41e5f474e8fd93e69bacf8091. 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/ESA011944370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2016a521bddcdfb050abf639f233a4e88d7dd635b5a4737c29e421098aea98. 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/ESA011944372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9e6c0e4d9cad56ea577ce05d58ae097c439979f3b178651c791a09645a24e2. 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/ESA011944371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01a82063555a00364d2c80b4aee03e6c24e0851407f88fa340e3a3478a53d1a. 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/ESA011944709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf5d812c823d2343ede040c489bd35707c42c767db66b6180ba0ac41f8cd6aa. 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/QZWDW2314270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e9fd02d8ec689fa727b159f1c39b43912eeecdcc4a37519bd66eb807251834. 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/QZWDW2314271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bc4d69caa671132d38e2f321ec0225f4754771ded072248853ff55a3cd7179. 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/QZWDW2314272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6a186331d6c30ab7be3818a52103397454dad46953cf2c6f6804806e231344. 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/QZWDW2314273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd96dfd6415957e714bbb5295736e90fdf60253a538801ec2576afd891f22c47. 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/QZWDW2314274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5985263e8f223edb96317dae08bf392fb401414e92a3a91bc741e1b1bd0f35. 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/QZWDW2314275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22202b50fa0e7f666a131a2d1dbe7c92fdde5330840108d474248f76ae82bbc. 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/QZWDW2314276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d76060a6554f5134dfebc388fa1411fc2feadaebc48b0b6488e79e8cca5ef11. 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/QZWDW2314277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbd4120a1faeb34e69a4816e1c64b6c1ee4de3494628635ef9e41b9eff2697d. 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/QZWDW2314278.