Zabo may refer to: Zabo, Burkina Faso Zerzabelshof (de), locally usually abbreviated to Zabo, a district in the German city of Nuremberg Calvin Zabo, the alter ego of Marvel Comics character Mister H
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 0xc0554f3ca107b9efd1e2127632b8f9a850269e09444fe86099d72eb222bf6da3. 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/0e5fad3a-24f9-483f-bd39-4d842deb2668.json and https://artists.proofprofile.net/proofs/artist/0e5fad3a-24f9-483f-bd39-4d842deb2668.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 0xe504741e70395e0bb3d0c3f6e545526ecd39bcf150465ff0303b88333aa2ba0d. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZANL1751227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9a7b0833faa781490f8b99427f349ba8da107a44d20609b878f4995f7f43dc. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/TCADP1856096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab9542bb3e7b19f639d6b9dace541adf8a5ebc4a72eb8b4ee4510f987f471c3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA61844284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4208b18cd75c14d51269cde79c52fb4e28fe349629aae903760cab2b93811f58. 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/TCADT1898405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6342ccaff88c4dcbc458b3dfc8299800625a62b4e2c98e55bed20ce782f2596d. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GBKQU1898107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087f63267b46aa480fd0e402dd4af15f2604006e3d84af16af47d1b54361094e. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/TCADZ1813045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc475e00b9f4080e9157ae451db36a3ba1629bb17749d6be61fd6d80dfc6f99c. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USLQ21880117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0683366412e1565b171f10a08b2a14e942ab84be8b5f2b066dbd0109d005fdef. 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/USLQ21980145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ba7e020a43b734835e13eea01455bee6498174a7e3861b6dba6c1c39ece224. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USLQ21980164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b9f9b2f9568c3c741675da959273e9c7befc3a2f88f859b980394c471858d2. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USLQ22080182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2457505932dd4371cc8790fea90d6ba364191c6a650bc56fd6fc38eb77b67b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHNB2000203.
The Deep (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60abd7c5d1100a7f503a501d20b49de99b5f41d07a4bbfe5939e2ab3df8beece. 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/QZTAU2116114.
The Deep (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311269b48843732d852b6f0102295e2bd8621c93dfc0e7ce44489e6fdc47d031. 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/QZHNB2124130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7ec90812b130e79090e541ea9025061cddde43d3c33aa38c94c8a1836fa72f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZMEN2151465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0193dc59f682959684d321e22a643e979ab6a5a616c657713eb86e430b379fc6. 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/FR2X42258332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202851dd4411aed7b3811987f83e1c80b5a8d2a4b8aa4bd8252e1ede66892fdf. 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/FR96X2200551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb894edda72869b49708eaf96510bcf3acce5c9b24250613bf49aaea72aa0e211. 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/USDM32109501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ed8e1d775755371a1aa76647548d01be13aa7349f2f7eaec29a2cd0eae63e3. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/CA5KR2319996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf681b1eb67b05cf520a604087bad3c129309f57b030beb2a9656aadb91482362. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZES82448389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01086dad5a0fc76c40cd57565d02ed6d9fb2d8b64eacbf078763e29a79be755. 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/USA2P2414728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e079e6f8a4a51fdee450b14b4f7fff52f2de9e445e843f749aa31037964dbf2. 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/TCADW1820148.