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 0x271e12ac897b895b040b91eb9c55e92f673aacc92214a2dc2c571aa5da8db832. 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/51e18dd9-6880-4b46-a01f-e699f42f4a2e.json and https://artists.proofprofile.net/proofs/artist/51e18dd9-6880-4b46-a01f-e699f42f4a2e.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 0xb8e540ffba3eb2f999217110b75db71d6ebd5b768e7929a9e87b1d2cfa76f3c5. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ARF060700235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbebc9bc857ea9e139d0c74681d88764adebfee1e9d4256c15cae95e547af76e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ARF060700236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2b154feb14f9ca5905467435e790801389ce3ba9e2fe6ef87cda1764027c8a. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ARF060700238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4677dc90c1eba5d3a3fa884484e0f6bf9a24c5663f5e9a28fde0e427dc3d4763. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/ARF060700239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac79691b7871bd236980657fa073f6f96a557bf9f026047c9a7b0140d698a52. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/ARF060700240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea387fab2c17d8f267c9da2ea2b79350340f8e38bf1d60e60fec04c71dce09e. 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/ARF060700246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb2fdbeb98005d1afa58310e55d1997956eb3db493a27cfd2df58bb0f4b8b70. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/ARF060700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742e0340c161bd9965ddbf212f12c0adb324d6ed9f55ac6ae4d9cab49a30f422. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARF060700252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd819e6d3aca13522ef94f181d2ae938e8129bcca7f66f552af2b9dde785256e. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/ARF060900419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab11e476cc43a52ce7b59e83364ba0a6142d72a7e343a06062c95dc4dbb3b09. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARF062200242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0c95ee59bd419737c7bcd07daec15ac1130ec67b5055f59cda9231f950f65b. 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/ARF060900424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7676a3dba0dd46361524917cbc05c08cd3e8f15b53c503d0832bc92dc089229a. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/ARF060900425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf458ed744830f7bb7ba2d72b56d06b2a38e5cbdcebe9225dfb452377ae0b65e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARF060802133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7eba36643e7afb958b808f6b992ab3cdb90aeaf362aeabc04efdd4efac5193c. 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/ARF060802132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617cee8cb48487479bdb81db9fef98e21180ab7cac3f2a3604eab0cb746f5960. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/ARG991035687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e540ffba3eb2f999217110b75db71d6ebd5b768e7929a9e87b1d2cfa76f3c5. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/ARF060700235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4198d48188731deabb9703c1b0852dac31025b6088fa015bbe2d4154795001b6. 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/ARF060700237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97cc93204fb105307928ccdb5801015ff499e0e5f854ed9ad167786039d09b4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ARF060700242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd959487d9d1bfc5307dd9404240986703261dcabaa214f772d556957de16b0e. 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/USHM21549896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae8e4d7a7aa8c1bfa8d7708e6bfcbdf0d798f42f1d6ab26905455c5681cf2a2. 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/QMFMF1527580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad0391fe9e0afc23be3153e8b135ef4c0e5f57cb30415f32c05fa6d65e5898a. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QMFMF1527581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005aa6e776333cb038446254b2dc58aaca814359377b0cdd74a1e085a047de6f. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QMFMF1527583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3357447bde0e65de3f7c842fa37c8f0958ef4772bed45cad26551b11d64613f4. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/QZZ782430629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b9230bb9bf0cc915d303e308d2205630b5d6d36b9ec6852957416a9a4d118c. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/GBMJG2502081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424918b2a747e7467fbdb802ed8225a47d604c474a72efbf48e761fba37a298d. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QZDQH2525499.
Superbailables de Siempre (Mixed by DJ Red)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff08e5d3e062945ba1af940b12c5afdb4a7f8a66b5b901a5646a4b423ada1a2b. 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/ARF060902043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cec7f6a833a0f59c03a11f73313a79a052b06c1806db0c8c626d739a58ec4a. 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/ARF060602144.