Maro may refer to: People Virgil (Publius Vergilius Maro; 70 BC–19 BC), ancient Roman poet Maro (name), including a list of people with the given name or surname Maro Mark Rosewater (born 1967),
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 0x45e080f814a2df589470d7ad4ab4ee8f6a2e4bd458b7a0f22cca8b608c956e1b. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed3dad34-bc40-49aa-8362-bd8896b4f9b6.json and https://artists.proofprofile.net/proofs/artist/ed3dad34-bc40-49aa-8362-bd8896b4f9b6.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 0xb4104dde6d845dd8326d2e30a5d0779870773eff6ec0f3da0afef8b8ff6a55e7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/KRF632205042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae24164931c3dbc3a0837a34d7bdab559a19b5447ceb668ddde02f6dfa0c51c0. 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/KRF632205043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5114d230c2866d5dff6a9863d2aadd98c1234ba4547fc84cbb890f2b44d7107f. 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/KRF632205044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e89983b606849228d9763ba3a6732291915a4e8a7c88147e333247f3dbe33e. 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/KRF632205045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dc26efb6245a00e024efb7b5bf00eb027fc52a101ab5054bb77598176f6b2e. 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/KRF632205046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7930b4db370cc044f1fc6284f88e79c18685d044d34273c92d1783ab5e1807. 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/KRF632205047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2b05080dd78393ae9dbe8a4ba7b80ec6d5ac512e83ddba3b9084af163b8f2f. 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/KRF632205048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8652e9113a2bc63405351dfe7fab2f12be45293bdd51da3e800da7bd0d2a6156. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRF632205050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a7a17364aa9b5ea08485b1137fb89cc1324523b74fff7610a89a4e5f008cb5. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/KRF632205051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c23d588adde8b68d41c2dd5053eb254cd42108f8127c7d077559d2f01d38b8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRF632205052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d21cea85dce3f0e136e8a5321ddbfaab163ad9bb383506217dbf5acda21f1d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/KRF632205053.