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 0x610bad751a61ebacc0cadd160066620cdf87ab3cb8f7b44a82a39726304a5be9. 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/c75cb397-4206-4a47-98bc-ef154969671f.json and https://artists.proofprofile.net/proofs/artist/c75cb397-4206-4a47-98bc-ef154969671f.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 0x1b0a8a2af96054ed9cb644a76b5316b97975fda2f2c93935a16a058d773722f9. 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/FR96X1762049.
Darkside 15 Years OST (Hardcore Edition)
Lord of the Underground - 2016 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d00865894087bcc9336fad2dde9a378b898225d5c972c252613d27e97b6c207. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:54:15Z), 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/BEFWX1604501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf435e52cd1555b1cb6a1418954a2f08484c0d213b12d194c228937c9b24410f6. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/NLFL71800698.
Party Like An Animal (Official Free Festival 2019 Uptempo Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00bb1a3e3bea6546b00a35473253a02e185b4ac8a050c38d7d3e363cf4ec108. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLFL71900112.
Double Headed Snake (Official Snakepit 2019 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb851ae41e808998c6f2036aeba252924e59bc4cb02487078f6eb48df1e07bc9. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/NLFL72100866.
We are The Leaderz (Official Leaderz 2022 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd626ee1fe6a47d4e990410e964baa2f85ff2b8e58359cd9331c98fa608f1017d. 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/NLFL72200650.
We are One (Official Leaderz 2023 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b3c5ceeb9c00e378d66e4c428e9e6e50c015ec5d2545282a47bf35a54e631b. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:26:50Z), 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/QZTB22380966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78826cddd4c8c424f494f2a524d0d9bee2ac886d4227d67f933321d09a5bf7b7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NLFL72300826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d006fb5957b7bb27d7c9953179a3373fd6529aefa7f2e2886e58bc5ce04c829. 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/NLFL72300841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0d19f98ce2935afc18a5fa878503f942ea1d8a47b4314d8a8c0d442cf2a272. 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/NLFL72400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb32b842c9334cd25ecbd22ec32de6ad92d4732501f33021340ba38fa90941df. 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/NLFL72400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a43fa8af19ccd551508d4c56fbd21d0def1da75c70bcb41e4a178f62217c931. 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/NLFL72400311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd30dae1bd2daf0befeca04e1c7048e4e3c2ebf11a2f3ef438db010d3a0d999. 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/NLFL72400367.
Xpose The Sound (Official Xpose 2024 Anthem)
Riders Of The Soundwave (Official Fury & Hard Impact 2025 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a50d9dfe48b69921906eb98502fe8fc0d331121fba712f608a6c9be46d058ae. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLFL72500575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b05a9e254f3fa9e72425da33a0f7a2f8b11ae12323248d60a06402a823018a. 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/NLFL71900140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d4064addf979462bb4ecf49f27423afd09f9e9aae4a5b3a7c8ffab3b088203. 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/NLQS92200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607de45a1f9cb527e573bb9870f3746d2f9c32c9de68654456eaf3bdf5a1c4e7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZTBB2225198.