Zo or ZO may refer to: Arts and entertainment Kamen Rider ZO, a 1993 Japanese tokusatsu movie Zo (album), a 1993 album by jazz pianist Matthew Shipp ZO (Yung Fazo album), 2025 Ethnography Zo peo
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 0xe6bd8c8cd2c7f336fc74e61dc7d1d994cf15a27a7d7cec8f0702268572fdfce3. 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/e792d271-b2fb-4ab0-823e-f436c79132b9.json and https://artists.proofprofile.net/proofs/artist/e792d271-b2fb-4ab0-823e-f436c79132b9.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 0xb258511aaf4eec9190c3205ced93ab48909ddd3b0f67afd5d4f833d8703c9833. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCADI1734741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee51fff1d2ca0efd1897d1dda2b0b3e2b51fdd3b3d029bf66826c61393b71a82. 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/TCADI1764368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318cfc3737dee4e0fdbf14d46db62a4dbde52c0f9ef82f0bc5f0152e0989f270. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/TCADM1869444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8b882d69ec95d4cf98f03330892faf1cfafd7c8e8744f8c944a473583f8729. 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/TCADM1869472.
Puttin in Work (feat. Kenneth Paige & DC THE DON)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233b5d9017cf96eb2847f506b8300c8c003ed65903ca71dc2fbe2f381efa0c49. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/TCADM1869475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a577c456cf714b6dce335eba2d132adda65f3fbc10afac0890d4adc222add8c. 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/TCADM1869478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ad520057442e0de35d676099b5be3795bafd91861c3786ddbe062a053a0d61. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCADM1869479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e15274ff1d18ed4fb3b6fc145efd2216b72c04a4e9e1d49ad68bb897d36d82. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/TCADM1869487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435efe1401070faae58fb2a64cd0295754b7a1cbdb1db82e65e4dc5c588e892f. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/TCADM1869488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52ec177af0e6dd746c54ae0453107cd6abe85d071ce36a8599016b264d7983d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/TCADM1869490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d5fae13f3f9704c8882971bc72b51812337199c3572fc1a33623176c3d443b. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/TCADM1869491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c40930f35659d2d480f63ca0d0e16cff8e188389e2d1fbeec9ab5887b30218. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/TCADM1869494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf94ea41034ffe4fad0792f59618537347d0a56a26b935512445de78f7249f88. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/TCADM1869507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a1a7a2a9b1ab1373b4c0fa9e77fcb9f1f973914323723049c7fbb3e83daddf. 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/US3DF1814720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610736fb831fdd8299c08a0e1e0313119aa06b37414307557f88988c9dd9f2a4. 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/US3DF1984164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6688e4bda9ae2bac293c9d92390b1811acb1ad28b656b2e90ee23d16ace359. 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/US3DF1997151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa34e45f2bf51d77fd3e041911e1d2cce94d3dc35f907d2b31d7024656c094c. 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/QZD442000738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67bf562e6b29a1f38a9367f1eaea57c39698c195438a5ec9fd371e5214fb926. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/TCAFQ2139287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c262b6bffa7e03922d14e4d9fd4d6623ff7baf1f7c442943e031a0091e9e6e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCAGB2208106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e46ad94ef08dc281102fc37cc5a40030393046c976961829be88ea1462468b. 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/TCAGB2208149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8e57c9c1e80762776a5de2f6592a7ad14f7b7c25b7261a271c2a6c50a39dfd. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAGB2208193.