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 0x810ac7f5a8dee92be8caf294d30b21b3287c3a3ad677e080843d316cf691debf. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89a00df1-19f7-4f05-8e90-8feba4b274dd.json and https://artists.proofprofile.net/proofs/artist/89a00df1-19f7-4f05-8e90-8feba4b274dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nos Vamos a Morir de Hacer Estrategias de Amor
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 0xd96cd4f89bceeed92dbb96ad4675e8ff90c06625a476252ee4e044326c0178bf. 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/ARF101800168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288828eeb1ac87cbe39924088bc4b58c939628d7ce6fd090adaece6e325e2767. 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/ARF101800169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91f4e18fec203461bd3698cc7433e677e2e88b044b2e0b3d87c9cfa80453745. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/ARF101800170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56eb11a731ab14a233d8cc38ee75084f3f5da72003e12fba40416426888716f8. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ARF101800171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc71947b32491a4a8edfb3932d5e24074a7ffa3737abc7f0b56b00932504aa8. 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/ARF101800172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec75d5c3048e779f3c1960c4f446e53ab648661ed9b90940ad15271517dfeac. 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/ARF101800173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec6e7e35e1d6b262e80466366f4ff8c525f8af28f27891790c00ee9b8079895. 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/ARF101800174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea03ca61f8cde850cd51d68c808fc056796dbd92168052e065c4a8f238359d7. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/ARF101800175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4aab1a8610a8e275dd01e0b878d1e45ab795d6ae37cae6992fd27066fd2b0f. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/ARF101800176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6afde0b864b39bf7ef68b90540088d3913afa1f93fe97b1488f4281a858713. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ARF101800177.
La Rabia que Sentimos es el Amor que Nos Quitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35331ad5feb48968d272ceca64f329d9502d73e37c021655c49f0f9bbb13d27f. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/ARPEJ1450201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478d1e6d259e94c4197c54d34a1feb2424be493c9635d71db7135d40a9c0ec21. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/ARPEJ1450202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258a9747264462c78a6fca3df6d23634cb0cea03318e4160db5b9748f21c8ff6. 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/ARPEJ1450203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4936c9e34f60071dc230b860eae47d800e8304ade70e094445f7c35abfe758. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/ARPEJ1450204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a27ceae7e558158ae3b67b7d5ba745f989546eb91306275c85a55e151d1ea70. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ARPEJ1450205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05441c1d6d25e6b76721d4f34588b4e27fbb37298019d9dae8a17d936554c1f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ARPEJ1450206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219d313a2ffcb50a7e4c92df31bfd0785329e29b2b6f02c062dd872ff9adeccc. 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/ARPEJ1450207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77377843624777bec6920a4eba0a4e51a073ddc309aefb36a4a36de84065e047. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ARPEJ1450208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e4d623747f63124450cab843ce71e2aa98b93cec942d5a65d3bdc9c00bff99. 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/ARPEJ1450209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e04204808cdc301ef69bd456a47347254742ba06b59447444feffe4d16940d4. 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/ARPEJ1450210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad4cfab3eb31510e12c6c561304d0c67d9ad0f0794dec7a20c4c944ee7eb07c. 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/ARPEJ1450211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd738ab423276174d23c4421ac00ce899b9650602b0c11038df9337c3a1790f62. 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/ARR092300336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56eb11a731ab14a233d8cc38ee75084f3f5da72003e12fba40416426888716f8. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ARF101800171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec6e7e35e1d6b262e80466366f4ff8c525f8af28f27891790c00ee9b8079895. 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/ARF101800174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08ccda5c7dc53448384ef1a14acbbd522a808891d50079e4d5744cc0fafa938. 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/USHM21919382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369e761d2ba9c64e9bd0a84449c04410843f6f9a5af2810bb9d08651ded23b1a. 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/USHM21919383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed73b2e20b6f52c349ed30e74383ddee05c32db22c0b1819b1b73debe7ce9484. 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/USHM21919384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec894d5521a0aa54f02112f3c89af29bd24e616e4b448274a6af17cc51ce48d. 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/USHM21919385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50d08e606a766e1391d48825c2cb430168a29e40ec11a0c9b83d3af221bcbe4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM21919386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd419f40a752909599cce85b7989562644a46955d53da16a679ab75b05053b1. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USHM21919387.