HLZ may refer to: Haldia railway station, in West Bengal, India Hamilton Airport (New Zealand) Croatian Medical Association (Croatian: ) Helicopter Landing Zone, a pre-prepared area of ground for
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 0xd755ba9484eab54d9a7ba894c96ec20dfbda058b7fbef27cbe85df425553962c. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aaaed810-0748-4218-be56-b363e1765992.json and https://artists.proofprofile.net/proofs/artist/aaaed810-0748-4218-be56-b363e1765992.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 0x2769bcdafdffbbfadd53302cbd4cce6a43d332acb18b43700b947497397aab84. 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/GBCJY1700129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db84211ee872052c0780b86378be7c60d44e2765db9127ee41d2dce03a7b327. 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/GBCJY1700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5c85b61917ef5d506bdf019982ef3424c3950c34b51395d60824b9c8c4ec5c. 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/QM4TW1715489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a04138d0f5d5480696eb411afedbe7a2c26152a682834ba7950b8b8943c31bf. 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/GBCJY1700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ed6f9db11b0559da56c21f327028e0bf8d02acb8a2fca4693601be176cae8f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBSXS1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35f6efb6ff65637e44f2d80a66474b442bda3c3780203394cc77113c4dbc7fe. 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/GBCJY1700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7aff3d7c91f8759a7bb504a146e146ffd7a52bb532ddf27688229b468c6841. 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/GBCJY1700119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9164d5240050a165b2dd8bbc81292cb6ddfc3f845e398346d78afa4e05e37baa. 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/GBUM71308569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f17c4697581553c1b4769d7101b47abf8406e459f657894511ea39148ef7a64. 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/GBCJY1400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a44391913e59a6ab8bbe20603b2b95e10aa47f7c2f5dcfd1d3cb6e1b7531ece. 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/GBCJY1400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed2f1b26d51d4506fc58d0c8f6cb55134c6b9faf67a4e230f006b67743b5b34. 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/GBCJY1400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26fc5f998ee0495be76c45cc81851abece3449067a174a5d26c81b26bc5285. 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/GBLSB1400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2686304393e6010319757d49bf82da6ff9763cb06bf97fe32aa8bd57728409c0. 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/NLCK41024645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f31645d280f9683f743f8ad574769b589ebab4278a63f94f0f30ad3cf54110. 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/GBUM71404278.
Liquid V Club Sessions, Vol. 5 (Presented by Bryan Gee)
Club Sessions, Vol. 5 - Continuous DJ Mix 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6064a9e7293649f4e6768c793da393466fe975976d6beb3c16b6a80bb95aa5. 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/GBCEQ1300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f0a8fbfeeee7b5e8ddb23e7cf8933a2d4f28a1bb0b47d5a4ffd2a82b4e08ef. 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/UK5DW1310071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a97738c46f98123f741fd19839743a05111a2eedd8dafc235d24aefcf974462. 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/UK5DW1310072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5895f4567b01590e9c220ac1a4f8852c5ea77c9de115b52541b14ab2ff65d48. 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/UK5DW1310074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f70f5ea6f054a30250ca7915ef1157388d048945ce9cf71da6a6ddd66cd0d51. 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/GBBHF1310985.
Dusk til Dawn (ft. Cleveland Watkiss) / Sakura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b20e426ef13f5fab83c398f5761d57f1d42276534ece62205061741e096704. 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/GB8KE1651143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aedf36aaa29ef80216c6a2852de5bf69358ca9f4a7eff8bf8d3a64b7e95119. 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/GBLAL1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf68f4f5067cff4f537172b0666463b21798194c59797540117c87d85552d709. 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/QMFME1420674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb6db8a93ee6ab0b8ad85af81b7377f78d8a5589364a03262345bab6606cea9. 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/QMFME1420684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1551d06db52e61a3b4df4ccd4074adf8b199152e3805a6cd48eb00ea2d7bfd0c. 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/QMFME1420738.