Tobi may refer to: Palau Tobi (island), island in the Palauan state of Hatohobei Tobian language, the language of Tobi Hatohobei, an island and the southernmost of Palau's sixteen states Media
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 0x413c5b63e5ce3d1ba36864eb0e1388cecf85173effd969db06a7fb11e0558a3a. 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/3062c533-4857-4129-b367-5dea2c00ccf8.json and https://artists.proofprofile.net/proofs/artist/3062c533-4857-4129-b367-5dea2c00ccf8.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 0x94fc901abe418f71ec3278f69dcf9430256e01ab15ff4bc9127fc5eb9a0e314f. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/DELJ81820776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e28dfaaba71c61e1e46b1b6f5fb4ee7a14832d49e139bfc27cf6ee3b015a4ec. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/DELJ81934241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f24d746b9607d361edfdaadf060de1d91427eda35590d96e3cd3edbd751bdf4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEYN22000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc768142bc92cc8e16ee40a9c1cacd843c078363ff3e95ab35b6c99371cf23b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEYN22200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49375d74e32141f13f8d8ae9d21934109f5348baaf95c5d4e8fd56ec74d259bc. 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/DEYN22200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53938a6ef05acebe6ca4268058be2d6395bb0f00d8e7064ee44ecededcb39c90. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/DEYN22200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1344e41f436ac20e8fa68c57f3962ff00b4244bc3ba413875446e634ab55e697. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/DEYN22200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafaf8ce556481f44a19c07f3cb23ecf4894a77f48f726029b012b51186576cc2. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/DEYN22300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be2098bdbc34c61c8e08a9289a790ff95209d9021cab2433af9cb5a6cc20dc2. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/DEQ122344015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98126407296a092d2a46372d6fea05803cdd4b4aedf6b886fc210aee6f98bc80. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DEQ122344025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363859e2235001ee1b6348e3e9017353d9cb426f353aedb2e33287bed705830b. 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/DEQ122344031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4947da4d3039d441b351615958843bd030c86ad574a23b97d8710a514318a77. 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/DEYN22400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a422d61069a1bf6a98bc7946feb8a7051adc1e852a38f2059b59c9bad44e31. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/DEYN22000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67b30a77968a2a6a9c59b0a5fc168395a140ccafcd2efeac6eb02cd4c22a852. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEYN22400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9353af50493706fbd70c8603473bf1fccd4a10f84826d6f58c75b77e4c9ceaf1. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/DEYN22400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52d6c2662dc74aa785140b6eeff52d4fa165b57860e0d7e761570387c0ad493. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/DEYN22000019.