Bolo may refer to: Arts, entertainment, and media Fictional entities Bolo, in the Bolo universe, the name of sentient supertanks An enemy in the Dick Tracy series Bolo, a character in the Shantae
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 0x685b85b148f4b51fcc184f1faed08f29cedb48c142e3db5a3617a643df9f7fc6. 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/8732422c-bd66-4ec7-992d-98943b6c815d.json and https://artists.proofprofile.net/proofs/artist/8732422c-bd66-4ec7-992d-98943b6c815d.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 0xff29e54cb6dec2bfb3eb4a16ab3ea9e9104fbf9ff32f966a88e74afaee5beb84. 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/FR0U91100398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1a8857638797d998de9c18077bf7e23fea490ec80e8b28914b917d933ca761. 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/FR0U91100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206e3500bc8c78f9c85664b90a20afce1efc36b636e9e7480cb8caac10f3770f. 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/FR0U91100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97cd6a34ff92796c822ba85e2dd5fc0f9e4c8cac13477f42f80002611487915. 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/FR0U91100403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198f7143d3d9b3a95feb9f5c6948993ea3b4aa79dc2306a1940cfdfb4ce9c5cf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR0U91100410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8438363f6be4257d3863c3dac0f349db97c92f624dea33d709a7682f41ac7895. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/FR0U91100412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6a260e9d0939b2bdbb7dd9e18535f7f55bd47c3886771c5df3b8f24ebdc998. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/FR0U91100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cace4607f55bd7930297b289716767f922fbe55109dddb0b19cb74f2e7daba. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR0U91100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8581261440a271f879c5bf08bf64cddf8b45916b0656b4914d2b462e98609a2a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR0U91100076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4eb52d6624dc117db9d21c8a1048122302ea68d85086519558a268c3799329. 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/FR0U91200861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f5a90a7d0f63e4e935b2d18e39e40c976452898ed9e680a1624bc2f1437773. 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/QM4TW2264709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8ff0043e6b59dda4ace872ca1c9cffd255fd0d5f4cdc243cd2d98ed6e63f85. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/FR0U91400517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa9884d50272501acd153f31f3040a5fbeef579cdd43386326bf49bd264fca3. 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/FR0U91401075.