Samuel Lloyd Spence (March 29, 1927February 6, 2016) was an American soundtrack composer best known for his work with NFL Films. His music has also been in the EA Sports Madden NFL football video game
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 0x74050651ddd0501c923d33c39147fd176e71df1fca51027cb33e529ba165f7b6. 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/58a72849-ed57-45c4-a1d2-6d385a99a45d.json and https://artists.proofprofile.net/proofs/artist/58a72849-ed57-45c4-a1d2-6d385a99a45d.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 0x7c326968a63d9d9f24abbbb911ade6f35034a965755adb072ef20851617d3111. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QM24S1926631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130373192ac3ad3dd270e4659c1d05b9a3b5b61e717a1d632ad80950d2a577ba. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QM24S1926636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b9ac4f67a86b8887877de66a2b38166a0992cf03fce04cac20ff08e05987be. 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/QM24S1926640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80f0f3529cb6b26100614c04597d6ae69c44dada9303db2bc8fdb8fa512843d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QM24S1926609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea6ba7aa7736b526c61c71793a75e3322c259a8036d98c67264c5fa4cc9cfc3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM24S1926610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fef09016996561e21ca8f7a3afa22d3e987c5d8256ccd3debc5755bb929345. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QM24S1926612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d9cd587633f88737c78d08a79102baee2788fa318aa1b29d129d651e09ab63. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QM24S1926613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd211988daedd34568ada0928b10e0d24b7fa48eb14ee656ee9a397a201b0ea. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QM24S1926617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2f270aff726e694d51c4ff4d960848e5f9b6fea9eeedad72077160e42335ea. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QM24S1926620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407e795843ca6f8bbafbf8622071f486409971f5308143ce71fc9824bc0b6596. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QM24S1926623.
The Art of the Synthesizer: Interesting, Unusual and Melodic Moog Sounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41797038e1457e854d05aaf55bc0353e63f7cd7813e90c76b73156be8a076c31. 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/DEA740600454.
"Ramblin' Man From Gramblin" (Da Riffs Madden Mix)
"Magnificent Eleven" (Da Riffs Madden Mix)
"A Chilling Championship" (Da Riffs Madden Mix)
"A Golden Boy Again" (Da Riffs Madden Mix)
"Salute to Courage" (Da Riffs Madden Mix)
Das Beste Von Kuckuck Schallplatten The Singles 1970-1974
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dc242dadf876f05b02d2643da2de55ad4f0a7c53e1a34c21b89eeed1d32235. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QM24S1926668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36d0a14c6f7f94dbb5f9fd578e1c69657c945a4209299a2caddc7007f99cf92. 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/QM24S1926671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb9a3fc2097c9330eb35f0844adc49f95360b6b6013598a794b1ff945f6cf95. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM24S1926649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0660cfb715191342310a646d51d9e7cc324994f8a8c24a799cea12d7a2c688c5. 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/QM24S1926651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbbc5a83bf0760af365b1ee5e0be1e2a10d6375d2b809ec7ba63c8735834d35. 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/QM24S1926652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab019ef845051c8b4bbfedd2faa90b42302c893c899c15a0488de7e95244b0d1. 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/QM24S1926653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65836cd3a6c18ec713bac2e004d1ac9dacb57b429ed09ae7fe78fe4daf687722. 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/QM24S1926654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f99ea327d2f5101adfe5c533b9446aba937cf1894c3d1c5ae1d7182d153659f. 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/QM24S1926691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd7762ba3d28c664baeebe382a6623afa660441d3f439680d3819a04c7a7fb5. 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/QM24S1926695.
Super Bowl Memories (NFL Films Classics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b930045fd63443f2d03f0fd85f2ead2d22fe4aecae42e72b44dbbfc310e49e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QM24S1925705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2892cd4e01deca336cf0e4fd0f4760c57d874ad5bd3617ed13833346cf1a5d1. 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/QM24S1925708.