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 0xff73b27d807e1017ce25e9146e85425bddcb3cf4d5d528e81891a1be19fdb0c3. 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/09c3a261-58dc-4cf4-92b6-cc3ce1ecaa4f.json and https://artists.proofprofile.net/proofs/artist/09c3a261-58dc-4cf4-92b6-cc3ce1ecaa4f.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 0x995e0be49e2b9fef5bef7116e32472ccd425e369a55f209c482e909f6de012f5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITD130700716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f28b701ae546c0a7833fcd20aca9e69b5d77c776bf68a4b9759e587d92b6033. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITD130800723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adeb13919bcfead43cfc5f3a76574c01ea427d93523346b29366738a5b4e515. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ITD130900759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adeb13919bcfead43cfc5f3a76574c01ea427d93523346b29366738a5b4e515. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ITD130900759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55a762ba78fbe3ee9d0e9ce11624a223dedc8ba94fd65ca35c72f1f03bd236c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITD130900760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811d53f09c9544de45fbaa166d49bd0a33eb47c044933e00193f80120072d990. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/ITD130900758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc1f7d216636c220a0485e645db901d9c33ac5e316ac35a4e13b004f9368944. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ITD130900771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae862efaa806c7bf78681adf8be72898a11d209a78a1db0168daac68314182d. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/ITD131100868.
Re-Inventing The Core (The Best Of Amnesys) [Edit]
Re-Inventing the core - The Best of Amnesys
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0a77ba1a09db76ea2abf3780f889add24ada0a1a997f476960a514a4ab8212. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITD131401074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb604e7e943d0cadf6c1dfb46dfe0e3c91ae3d636aaf6361a002a2e8b9ef93af. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ITD131401170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957cf8362e04d977f945d960ee78083756330ef80ca9a7f16e8d2176d0033515. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ITD131401086.
Embrace the ultimate (Official Harmony of Hardcore 2015 anthem)
Embrace the ultimate (Official Harmony of Hardcore 2015 anthem) - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6117c039ba00b54ede3662ee924983442fe22b05455eccf8fb3c6f47b37f84. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ITD131501294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6117c039ba00b54ede3662ee924983442fe22b05455eccf8fb3c6f47b37f84. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ITD131501294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9806bde857777435e184dc6a1ff39fc653c47e9e1de3a06e520e3689203843b4. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/ITD131401168.
Hardcore Italia presents Millenium Hardcore Top 100
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9593b80aecfb8a00abc5331968ed0d86afa24a3a9fdddd316cb49d98fddeb32. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITD132000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de4dbf323d7e47ca69a9a02ebe08cf7eb100db412a5ec713bc91db7c1fa4c32. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/ITD132000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb604e7e943d0cadf6c1dfb46dfe0e3c91ae3d636aaf6361a002a2e8b9ef93af. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ITD131401170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe5945df54633b84fcd48d7d359d88f78a5a305b76a83379901569a9ebf5107. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ITD131200924.
Hate It Or Love It... This Is HARD with STYLE - ONE (Unmixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66c695d678c59d4ae5c7c086cf4e2ad1bc0216d81e19860ad6d4e3682558759. 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/ITD131401117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686111cb50dfd55ef78e89ef8707eab768760cf24a6eb350b41848a10affdf08. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITD131401184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0a77ba1a09db76ea2abf3780f889add24ada0a1a997f476960a514a4ab8212. 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/ITD131401074.
Raw generation - Traxtorm Legends Rebuild
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada7af3fca4df65000af64f0362cd7ddae81af3577ae0d2cda26612ce2e6054b. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ITD131700260.
Symphony of sins - Traxtorm Legends Rebuild
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171afe381b32945cd09461804d76017ed1488a9f093d1d7a8c6348259062d837. 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/ITD131700263.