O'Brien may refer to: People O'Brien (surname), an Irish surname O'Brien dynasty, a powerful Irish dynasty that ruled Munster and produced several High Kings of Ireland Places United States O'Bri
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 0x9f861aaf8224f0763a0f40980a236457c87ee8837789f948c1708efc89b933b4. 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/bec7cfd3-35e0-4bfc-b7cd-7fb574f629ab.json and https://artists.proofprofile.net/proofs/artist/bec7cfd3-35e0-4bfc-b7cd-7fb574f629ab.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 0x568d5b422cdd5b359ebb7ddaed075ce062cc5ebb9c0a2e1903b2918e9ca617c5. 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/SE6QE2467647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec482c69d6d1cf0c7fe6ae45cdb4633e8cc9ae055b692467266490a712642be. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SE6QE2472060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c39658cdd3772755d2ffd3cfe2c9cf972668531f187058616dd8ced9f362b3. 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/GBMJG2428525.
Green Hills and Valleys (Slowed and Reverb)
Celtic Sleep in Dreamland (Slowed and Reverb)
Breath of the Forest (Slowed and Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27f6a17da9a319448be13c0e12a9744fb48d9d1fc4c3e39bfc2593892c729fa. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/GBMJG2428537.
Sleeping in the Enchanted Castle (Slowed and Reverb)
Waltz of the Fairies (Slowed and Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef3e3bb07fa41fd93467b50cc30b855bbbf6df2103f624ebe5c482f30c18a46. 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/ESA092412314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb3614ce9e403519ddb9c6aa0303a4f57239c1234ca5d1a14b4d1a47934b939. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ESA092412315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9be35c215df0c32f1d949aefd9947e1d413358d52d66fbd834083a22c5b60ef. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ESA092412318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70957a2cde7a04e3dce591bb890a5f858923ba1545f4120b8a41eff5f86a9927. 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/ESA092412319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6536b7ee8d3d66f708525bbfcbc87f5e80f000498bb0bf97a7c96419a626c25. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/ESA092412320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb48e9e089ab43d01e6f51165d557de14ccee68ab0ae13dcce2a7a5adc56ba7c. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ESA092412321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f015a06dbb7af8d570b44d74ece9ad9d86d188effe3790acbd8ad3da90c1257. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/ESA092412322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052fd9556768d248e1000f5d104f93b559b07bf375e5c89daae49c3d782feba8. 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/ESA092412323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eb50b02ed83fd5723fd3f937f3e5925d0c6436a565de672133edad0f28cc6f. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/ESA092412324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012ed43d4124b6faa2c51abec9e7fcfe16078b419da436e10b3847f708551caa. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/ESA092412326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eedb2938773c076edfea836a2feee542f52285bc36c526d65574a477dab43d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ESA092412327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1c109850ddd383cc24ba1f4782e7bc7933861a7c935f775665c0722467903f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/ESA092412328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394c5db174d904175d830faf63f1d8a81aa0412aa1144b960a96ef6b6ccb9fc2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ESA092412368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f88c5b466cf1561a029d3ec86fbf19f9817372c3214ea83dacda21477e8a27d. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ESA092412369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c95d0b8cd26b51e45bb7ae366bd06905343aab06567b0d37f5f70ff3b45e93. 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/ESA092412370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ae4681143514e938e96fc6565d09c3273f4387f624a3e577b70727bf4783dc. 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/ESA092412372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3281d274fdd754db0ab67ce0de00bbebe7c2489360b42bce51db47d00443b59e. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/ESA092412373.