Roebuck "Pops" Staples (December 28, 1914 – December 19, 2000) was an American gospel and R&B musician. A "pivotal figure in gospel in the 1960s and 1970s", he was a songwriter, guitarist and singer.
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 0x91f1fa14917d3b536014dab6807b26d6cd4d5b68fc59a9f63270716268a4ccb0. 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/684ab43b-9b27-460f-802c-fe3cf4e98806.json and https://artists.proofprofile.net/proofs/artist/684ab43b-9b27-460f-802c-fe3cf4e98806.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 0x504007ebd6b416d25c3aa7921c9e0cb9a95e0a20febabad33c7968219ee61816. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBAAA9200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca1df5644b4ce47907816586a668d8c063c4ec94aac533266c29496c9a1922a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBAAA9200391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1386941a23646499e8b7b49b2e3995d9de42f562d7f3cbdd41ce4726bb60ea0d. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/GBAAA9400972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40659ecbe3fe697988dad8ba9d9de3030047e39d0350a478d4b00c82b1759b6. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USEP41427004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de81ddc7474fc9230c3878cd4705cd3fce33a44438b330ae19405f821eaaaea. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USEP41427006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3ab7715efb53e54c0044b42cf2d9ae6ad327c8f5215ed65697b316d1906bec. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USEP41427007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbe6dbe30bbba57dfaee5de9a3e3a1729f77d5bbfc31ec62bae127987c26ad8. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/USEP41427010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89159eec93e73edf66791104883589417e8085d12d284ecc45135ecd75d6522f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USEP41427002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af09c521e21a74b0bf95f42765ef27bc2847ca85e290b1fae32fe3039ba515b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USEP41427003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40659ecbe3fe697988dad8ba9d9de3030047e39d0350a478d4b00c82b1759b6. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USEP41427004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de81ddc7474fc9230c3878cd4705cd3fce33a44438b330ae19405f821eaaaea. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USEP41427006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3ab7715efb53e54c0044b42cf2d9ae6ad327c8f5215ed65697b316d1906bec. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USEP41427007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4a057a46a3b29e1eaab922dc99360eeb0051095b8d93ef05518f6818c08853. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USEP41427009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbe6dbe30bbba57dfaee5de9a3e3a1729f77d5bbfc31ec62bae127987c26ad8. 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/USEP41427010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e6ccda4c7cde42da562413619e0d283987dc4dc1a9b82cc53b572e696a6213. 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/USFI80700343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455f1483d888106e2c4ed9a29cc709fc7caff18f798d5fcaf865213f1bc919d5. 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/USFI80700344.