Maceo may refer to: People Maceo (name), includes a list of notable people with the given name or surname Places Maceo, Antioquia, a town and municipality in Colombia Maceo, Kentucky, an unincorp
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 0xe6d2d9fa7b4ace3a8b96d4af8c1516f5ecc31046145197ec8db1e55007fd4bde. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1021c5f2-0ab2-4d62-a975-4b0a54774ff1.json and https://artists.proofprofile.net/proofs/artist/1021c5f2-0ab2-4d62-a975-4b0a54774ff1.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 0x0e0ebfaf747bf3ab8e6f06990de53236b921b879429cd35d07f29b37135a2a9f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BEIF52200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a9c860a664327dd8e2826633361e604c29c169ce6f638ded580cbe4552c955. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/TCAFK2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1648995ed7edc13b8fd596f4f7459a0967ba4a3ba6af3e7168b4e475d8a27203. 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/QZNWZ2414390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb0b59081ac45ddddc1448abf67affefc022bb59f223c8a2a8a415f73e56de2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BEIF52400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abbf1596ee7867cac733374714ac7b818924630d8b332d0d98497b81b2efe7f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZHNC2469362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c234592accef430ce0c39a51dd5a6469c078d8734e811020b6c4f0a5f6efe7. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/QZHNC2469371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf601612fe774ac116945989dc9cc4b959abbddcfb8aea85e1bb7f1e58da86c6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZTBD2457913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58e697abcc0442b322eedd0256df8eda499e7d1895dadd69602a533648ba8b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZTB52437949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e07dd20880695da86710398da17ada642accfc595bfb8bdaabe762e955f795. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWFR2332794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878c78c6db15474eaa606a53cc2b8335b0c7d01c703663a90d0b693242039462. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZTB52335392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdc1469697ac2a31c6d625da55ada93d3581cb96570c2510e6c70959a669932. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZTB52335393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164d4c156b95bfde31018c89ab480492a06d151a818e340af23f5ce65627ef02. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZTB52335398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9c9592c0835f003f51e520783332afe2a17642ec4abcebb2728ae5d6ff08e0. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZTB52335404.