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 0x3abc13dfb7cf0edf714e433a8dd8c9c230b7601f75dd79481c62ff606614a3b7. 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/8300dc3a-487b-4cbf-acf3-6dea91666703.json and https://artists.proofprofile.net/proofs/artist/8300dc3a-487b-4cbf-acf3-6dea91666703.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 0x3e3add2d6a84742a3b1250f809a12cf9c1a8a653102f296f6929b17735133efc. 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/GBEWA1800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2f70793189c888981b5345d21d775ccd9cc3580ebd2027add9241557bf2be0. 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/GBEWA2304611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5c844774fe076a852e88d1da5098fceecaa9f95c6807cfe9f87ac24b321d26. 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/GBEWA1902030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2d0a377bff1a1ec2c4e904a3e54665c4f13d77ac8b4b7d2788ae139b25bed7. 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/GBEWA1100278.
In Search of Sunrise 19 (mixed by Markus Schulz, Ilan Bluestone & Daniel Wanrooy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b1b21200f201f15d2877dc981dfa1ffbfa46fc36fad34b3e9a4a146bbe092c. 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/NLD682303538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2616d0c91ffbf1681030b10f67364d7e28e93d42b6fa06bfd5d1c81998909df0. 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/GBEWA2301530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf937d83f58d26102021563bb4055513dd91c5f002d2dd04a130bd876e095166f. 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/GBARL1501056.
Surge - PROFF & Igor Garanin Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca81880bdcac8ed98e24ae97a873dec408643f4617213a64dbb5b7498c906177. 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/GBEWA2301596.
On My Way To Heaven - Seven Lions Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ddf012bc31020638b233e2de3ad8f50d14b5bc41f59a32b1978c7dfeed50ca. 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/GBEWA2304623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4becfd11745f4b65d2b09bb40f6bbfa223a334b648cfdc118370723d1c3d1cd5. 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/GBEWA2402221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb15a0cb2969a764375c9c936497855c14d1e4f55097c637d5a8d7dfec186df. 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/GBEWA2304621.
You Got To Go - Seven Lions Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fdd0de0727c048d27d81c341584ae274fef87ad01f8c38f2bc5e99fd766e1e. 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/GBEWA2304622.
ilan Bluestone Presents: 20 Years Of Anjunabeats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf7cc23d6909e8cd3b69501805025ea7a9d09e13bf66f1b012e1ce298a73879. 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/GBEWA1100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a17cd84b70bb8955e4b000fe29de5c1bccf5fc9cc0c66af89f6c8d265ddf23f. 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/GBEWA1101240.
Cyber TRANCE presents ayu trance (COMPLETE EDITION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb181fadc580e407167fcccbb06fed93c642f0b6bdd25eccd2734ce88ae61e75. 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/JPB602103316.