Liza may refer to: Liza (name), including a list of people named Liza Liza, a former genus of mullets, now split into Chelon, Mugil and Planiliza Liza (1972 film), a 1972 Italian film Liza (197
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 0x4a60cc2bdd2ace1e6b073e4b5f3803f3ff51b5ecdc21c801e9a56d72ee25ebc0. 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/86d042d1-d8b2-4cf1-8272-d77b77291e04.json and https://artists.proofprofile.net/proofs/artist/86d042d1-d8b2-4cf1-8272-d77b77291e04.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 0x176264119bd54f8e2099fc34e041d6f93fa1c908283ebf21359ce6cb0babc5dd. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/TCJPO2152432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45b92f48fa92b201d358562e471a1b9cc86257034c2fb018498b16878b9f02f. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCJPP2157095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186ae76b0384ed4c289d61e35feaa4e4df459083bfe8568b3af39de82d8f1efc. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/TCJPQ2139642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db22388607a5fde0d9984b9434becf6bf9833657a3834a46ce3dac6950ee19e. 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/TCJPQ2139765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7caf45a0d78ca21c8a8363c7841d9c5d5e62490975454bfd8acbe1570f8870c. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCJPQ2139854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd509e42ae2dc94d1d858971d2fd02cb23a1ea4c68240ea5baea2533eec446551. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JP92N2229559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0299a0717295a2d571b76b155bab71823c6b206f1b9fd15a88e842afffb2da4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCJPQ2139583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91f0adc6caecf4d0051b4c75a13c0c48a3cb251974feae7dd561f142c7f313c. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/JP92N2238107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4679e7ae5b9d1e1918473c2a41ef3f5e8a3050c1cf01c528b544da432aae9f1. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCJPQ2139782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe13bc2a155c0b7028e4e0bc297ed6559cb2a3063c4c7c7847bc014aa9d4876. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JP92N2238109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7576bf347df2f13d2f4e70562004e710848f167d6395e32e42e8feea9f941a66. 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/TCJPV2370805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6142ed9a717b1409c8478e19452c3a11398500426b8ad293ab29a93048fd10. 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/TCJPV2370802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7576bf347df2f13d2f4e70562004e710848f167d6395e32e42e8feea9f941a66. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/TCJPV2370805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68b74dac82a3bc14c04fe94ec76b0fc4dc4856b4880157bff63b6dc40954b3e. 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/TCJPV2370814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b20dd06f15d22ed1a44264aa0cdd74d84fbe746a7b44df9e4c407defa1fbfe. 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/TCJPV2370839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07daca5bb5a76061939c244458b82e1465acedb8fb8954568d4f41d20d0d6f88. 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/TCJPV2370856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90df0dff33017f7ad90240f3a6296954604fc9d39fd5596f77aaf4bb36254b74. 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/TCJPX2349157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8d159a39b672ae130191646f2bf4d4c45001ece8526643ef88f0ab02629672. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPPO82404264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797ef238414661cdce605e95e9de01a3ed0d1ff8348b4e4b07bed59fe6dfd8f4. 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/JPPO02403390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fe2b26dbbb7b097f48507475d9a7494cc7bb604593a498c9bf9da9ae20d424. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JPPO02403391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308644d013b2dfcd92900da5b0a4bb09e2955289dbb5c2548b83e787fb472237. 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/JPPO02404658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec03822fd663721ebedfff3b648cc8670deab0dbd0f12ab3d5cd1c18a3c2fbb. 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/JPPO02404660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a7c608ee53145a10c3061eed4595986cf32210b992abfc78c622fa436bfe22. 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/JPPO02403389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecba4d2367a29b5f12cc97f8a33be817d7f112607ca736e32ee7c7bde56a71c6. 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/JPPO02403392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95891349339c4867408e76653e070e351cdc57b2630f85f5aa878ae7c8809d0e. 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/JPPO02404659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ad842e4fcdfc19c1c69dfa8cfc0d1ccc07ea9e0c25542e14683a0843671df2. 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/JPPO02404662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953f1ced6369a92bd0cfc8401f9c6e1ae8109c0d348c2b96c3ac4b9e6be65345. 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/TCJPN2037060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdb8d58630afa60cc6dfd7a1d097eb5a2151cbec693703e4c56d59790d87b96. 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/TCJPU2378996.