Chris or Christopher Bell may refer to: Chris Bell (American musician) (1951–1978), singer-songwriter and guitarist of the band Big Star Chris Bell (American football) (born 1976), American football
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 0xec891942a0c612658ca44fa2145fee6dba8fb81aba2dcf71d50963ca7757b22d. 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/5e4547cd-db4b-4416-a902-686c923ce239.json and https://artists.proofprofile.net/proofs/artist/5e4547cd-db4b-4416-a902-686c923ce239.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 0xe7ede5bec6147ead6bdad2913682e58ea5ef954287b2cd55b0a6e465f4cf968a. 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/USAR31401406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d9654c322af9048418cde7e4e4f6087c2bee822a95f667de3b5c498e2b24c0. 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/USAR31401410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b9d8a7e460766ee976bf9e23032d358e6e4eaaad1eada4ed9c5b18eb19a98b. 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/USAR31401411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80767db8a83810bc4c7f4fd8ea2f032b10a4320671ed4cf8e18cae2301cd588. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/QMWHB1709063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c4c744c9c9b5074225ab0d0f7f43aab8c33a944333fa6381c326a0add00218. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QMWHB1709065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44673a1a3915cfddfd799aa21028aef54c4ff47f7c1698c07d0fa2a954a76aa9. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QMWHB1709067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4420e0431b587176aa369c0bf8e2db7c5fcd0bd5df1a5411c3cb1595fb2fecc6. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QMWHB1709068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eeec943797ff6bd99ad57dc1ce1213ed3eb66b031d6924e326d17c68e8bf8cc. 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/QMWHB1709069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa309464378eb3473fd5a95c57bf72dcb1bf0f679a89a82ba93214b38cb6fb5d6. 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/QMWHB1709070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9d53341076e5142e904e73e67eedf8e9f82f4e4095281f41cc97e92371b58c. 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/QMWHB1709072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b1148f220d2edc3ea648ea59e5a77b647f61cd1af08e12f1f2306917e06e0d. 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/QMWHB1709073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa5cdd1628da30f430efe6397bed80f82205ef659927720c43752d99a48b014. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USAR31301321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915cd99a36600c367acc5856e39319e98756c1c1f1cb895e541e22b3a822e068. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USRHD0900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cddcd1bea61c5bd9bbac934d548293997510a0e5d59ef0e5b32c0bbffef8c0. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USRHD0900419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251c2bbbc52e90b01acbba93dc4973663b1a3b144eecf8db0e58f9951efd236d. 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/USRHD0900420.