Mando refers to: Mandø, one of the Danish Wadden Sea islands Mando (singer), a Greek singer Mando (music), a Goan (Indian) musical form Mando Diao, Swedish garage rock band. Mando Corporation, a Kore
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93223f3f230dd8481b361cf3aa500239a1f78c561678125817c8efa765aecf73. 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/badaa879-ebda-4c05-ab70-7cc2b1fb28fd.json and https://artists.proofprofile.net/proofs/artist/badaa879-ebda-4c05-ab70-7cc2b1fb28fd.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02b94b5c5fe87316197a9a6e9311a360b6ecf7b43e2eb29461d1fd6c31d82ff. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBLFP2206647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931e10797f08e2b1ac145ee5321542491429032137a3979ad896b0873ec432b2. 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/GBLFP2206648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4453d406a7b2471afec89ba6045a610138398cab65f63557db405288a4da26. 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/GBLFP2206649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ef9ea6bfe72808d8d3f8fd66344f43d57c789dc45b97197574802bd32a88f5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBLFP2206650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc812f15a3e42c90e89e0194cd4ff9d57ce8830968173476c7abed87776860d. 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/GBLFP2206651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa96e6c8265ea51bfd3340a89400a9f04fcdc07ba956a98a173fd837a1c44bb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLFP2206652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6e7a12529a5ad721f0cea6152cbe8e24bfab9c97373414f2b205190f7e4d92. 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/GBLFP2206656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca619a8b2523859a21099c2d36886674cc39a7d4c4516ec798b354c8726eb93b. 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/GBLFP2206657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcb5901a7e9f88323ad515fa332525ffe8b3eafeb52374211243da81d4da548. 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/GX3Q92054582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bcb6cbd6786d5046ec0d42fde74b32b14781c9ed2a6a5da795465b4b75ccd7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZK6J2432258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74ac3dae515fced1ab5ce7d216df0cd3ff242aa86da3a992cddf0fed37dd47a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZK6J2432259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445bd6fc521247f3bf7dabad495173a6387ced6511c176f818662404f8381d8a. 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/QZK6J2432260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc3289f10e77f2b29415f4a2e418f12a874d38b77634a433d9dd2fe30ebe537. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZK6J2432261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9aee9b1b173bc7d29bc396ac5986bd24dde38f0690f645e6764380d3981c6ba. 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/QZK6J2432263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932cc1ff02c36692822747fd788e915dfcc3cc4e8adf7be2b89bda412e866347. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBLFP2206654.
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 0xaaeff728a91f81b6416dc03684fee5275920899e496d00bddf74bcd897590ac1. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZK6J2432262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb11b2dce4d3e63a03ce1f66507b6d0e9534cd1c2db1f33697a3cbd6876c52e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZK6J2432264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf699fa82242fcc76302e5a629df6ab6997149c65be3ad99a24b795a889b64b43. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZK6J2432265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cc45d3e368837e3ac74ca06cf16e4b3819b10a7c1c3dc7b37d3d052c50a1f8. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZK6J2432266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ab0ca2495698fe0a5e52e94066898d6d984a6ef5873dafb0be1be3e9f9c59b. 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/QZK6J2432267.