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 0x39112a55bb760c457706bff3c8aa1f3fd00b2a0e4810c0d9856efeedf00ef211. 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/005993ab-abd7-4997-a1b4-326b2d0643a7.json and https://artists.proofprofile.net/proofs/artist/005993ab-abd7-4997-a1b4-326b2d0643a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Héroes (Canción para el Bicentenario del Perú)
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 0x5bd6d109b6d046b69103f084786c908a0999081b5621123870dfd6bd0faed99d. 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/PEBQ91605964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebec38d9716e7c447182d58f4a5320b171708f040242cb46d515b79edf80ab3. 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/PEBQ91605965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84265cb86e4124eb7477270e3bc7f6d7ad68e6b2187a100d2aaaf47944890954. 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/PEBQ91605966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11b09910b1ad15edbf774b91c7972c000fd836b94e746053772c54d385cd257. 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/PEBQ91605967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df113b9f0002904f33b66923a5a31770a2b0e26ba42bf4a546fa70321344b7e. 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/PEBQ91605971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf01d6f5033eb22591f4e4ec2693732c5d9cec771ed8a81740fe244b46de3b3c. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:09:42Z), 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/PEBQ91605974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689b704e375536595a1867028ab7840b72cfe3fa1d1659548aa8c047f038c934. 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/PEBQ91605950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ecb9067bca53ff04f192741e797152aea0664d39c58b9bf6206c26307ea637. 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/PEBQ91605951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc425962d532727615ce93aad250145ba8fa4718b1d6a051ed21a50dce3a276fb. 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/PEBQ91605952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad758691764792538a3f1c9c217b586eb6255bd0b6793d3a3cf39995c41fb5b. 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/PEBQ91605962.
Para los Muertos y los Vivientes (Sonidos del Sistema)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b423b40d81aa51b161f7ac428815fcbadbc342224b387fc09f6e0a6f308cb3c. 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/PEBQ91605915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaafcc43deac3400c4d7f4d8279db7321068347adf23e8b183d28743a68ae604. 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/PEBQ91605916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c6b2ff0eafd8ab63f9b20c2ed983d7091a21c049a7983a48b6f2a00497709a. 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/PEBQ91605917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f7307cc8b1e5f8ab999a99a2e26e83ec76221f8fa0b9746203b02e4fd39cc1. 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/PEBQ91605920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e47c9ddf73c80b165a9e43f77119ae5a994465675fd8e83078a1cb43e84c1e7. 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/PEBQ91605922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075e2d8652d8766befdd361a27e425ee6d95a1929efcd3b7bd1f0f597a7af380. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/PEBQ91605930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d7de82fcf82582eac5051bcd2b2b70f135ad2651932920dd47496c539c01c6. 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/PEBQ91605873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd155e9bfbf929e0883860a969c54f46bfcde5eb05204c101b7a4b435cc865be1. 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/PEBQ91605874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a164354fdc8bcd70371a4869db8ca40e55d73ffa03f4f0f041a15c3fb36c0a. 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/PEBQ91605875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca106ab4adce163685728171ab35af224ed8b1a4b267b57fa1637957f8db9f2. 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/PEBQ91605876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51db2b1bf64d3d663f81e6ee145faa5b4ba6431b0c5a3a1694450b3ad6e6fa8e. 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/PEBQ91605877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3a07f740ad4d54b7bddc8371ffa92ea0cc76f2d6667c8e705c7af7b6dc6fb7. 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/PEBQ91605881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e9eae515d3788e23d29cbd14a48677b66226ad1d7e0faf63f89654d1b96702. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:45:01Z), 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/ES71G1947376.
Este Amor No Es para Cobardes Remix Level Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb76591f03a4713a53f6417e68af78b938af1cc55c1ffe13a336c6666acdf05. 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/ES71G1879183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7d9db1929496b1ac19942e00598045a53e5d33977edbaf410e90baece17392. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:44:27Z), 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/ES71G1879185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe95611dda4914e40bdeab2429f0a55b38364891896884a0ab60b88f71a8a7d9. 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/ES71G1879186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfb85950bb308d2d523fe3efbfa494ffcec07d90357a1a328b32dda73e4ffab. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES71G1879187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3421e78cf68607648969663fa4d64a2dcea52e416fb046173a4105d0d3a7087. 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/ES71G1879189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905cac8316282c87514ca67fd0c231df6723303dc4e67e85ace7c74a52736d69. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/ESA011816712.