Hollerado is a Canadian indie rock band from Ottawa, Ontario. Formed in 2007, the band consists of Menno Versteeg (lead vocals, guitar), Nixon Boyd (lead guitar, backing vocals), Dean Baxter (bass, ba
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 0x496bd16f19a6c38553e5623ebb3dbd271208556a7ef8f74bda5c76d1db2dd977. 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/3895c268-380f-48a4-81b5-a98762a44fb5.json and https://artists.proofprofile.net/proofs/artist/3895c268-380f-48a4-81b5-a98762a44fb5.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 0xfad90e2cbe727db3a4dd344f0cb68217f267e48531fa4fb312438637ee09b69b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/CAAA10970902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dee3059949e1b7ca715abe003e9da5710cacb6af0146304cf41d31b3dd4120. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/CAAA10970907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147221046118ead33863547e0c1e386ce6296640926c10b41cd60b167987cb6d. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/CAAA10970909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff059bd8f0a32b6ff705e4aaa308953f762eef009ac62702e98e138fb2825394. 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/CAAA10970911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2a4c119b0690d5d543e2c326e2ac7e16e5493763ea00e1fc1e1d3eefe20c7c. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/CAUM81400463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bff9b65773fcfaba795bfca0ade2db2de11e1562c3b944ff3d705cdc961ee45. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAUM81500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf2a85c82d58a889d494b4ade6c5237c03eecd66a35aa832b7e2a82264d0555. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QM4TW1764918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb27ef79d5531863a7178c0f1c301dee0a9a3aac91348f0a2e2cea3de73f046c. 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/QM4TW1764922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523caeb49a943c24679778dd2c383a69699f515ad3201e9ff4869cacc58ef9c1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CAUM81900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf62c1dd3c20912e8823a2a0ff8e00b7b6a59ed98dce7b50a11970c35130f7de. 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/CAUM81900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0036c9be49775ecc2a0ba4e105db49a93aaabfb31ae37de07ff8b56d212f740f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/CAUM81900124.