right|thumb|The old Bent County jail in Las Animas in southeastern Colorado, where Ken Curtis lived as a boy Ken Curtis (born Curtis Wain Gates; July 2, 1916 – April 28, 1991) was an American actor an
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f6279b341d7be7282531ae23f85820bca2a8e7e22d8263c4c11810e5300802. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f03f409e-e5af-4fa2-8fca-935d1b38770e.json and https://artists.proofprofile.net/proofs/artist/f03f409e-e5af-4fa2-8fca-935d1b38770e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Top 40 Classics - The Very Best of Ken Curtis
Music From the Westerns of John Wayne and John Ford
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801f7070b44e003a034234801f4b50fe046cd68fd9555254bc07f3d19007a3c6. 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/GBBLY0903289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3619b80f0d9da5e5b5a142391f5e1675e424bbd08ca9c62cca9063d8b6f43ce4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBBLY0903291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d2e1c5bb7d5743591be11b33d33477a134148cc9c7d0615e95683f91862c36. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBBLY0903292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf662705d53128bfdb3135f49789b73c061779c8f3bf491e955214067d4cc23c6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBBLY0903294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4a5a66e35cd27f76db8d3f41dcf08d51f6ef16494fb9412b9512660b1c0448. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBBLY0903297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95771d0c64ed693061454a78a45edc3a381bca18844baa42c404faf6ae2019e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBLY0903299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530b0d00ded82e5c4c4aac9d784952d2155afea2932f9fb5b451eddb9cbec584. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBBLY0903300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd4668953fff25bb21e61d82e70db11681c42a911d1d6aa7ca32935702630da. 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/GBBLY0903285.
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 0x716941e55f6b771209eac235f20e2452cfd8e5d6cf47178a256d904944de7829. 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/GBBLY0903286.
Rio Grande - I'll Take You Home Again, Kathleen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94383b140981c25065f5b6df1b4696df81b44c8e0bc5a60120bcd281ec352d5. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/GBBLY0903287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b966d3765bebbb6a428377bf97ffe19c00d487bf3031029e8b0a888e9f125c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBBLY0903288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27de74d77aa31055c9850366ed9516b421b9590c82d42447c0b371b271aa6082. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBBLY0903293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258badae39cd97650c477bda10e5a048bb3e9d307f8c89b0d2867b39c86214ee. 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/GBBLY0903295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae27e2c540821922f3a0b26957da9a4aca96ad6ab3604686a5214d3ca19528f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBBLY0903296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2175394939c86a748faa0c754d04ea27a9059ef63b5bcbe09f14a30b23330977. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEF067904900.