Fontella Marie Bass (; July 3, 1940 – December 26, 2012) was an American R&B and soul singer-songwriter best known for her number-one R&B hit "Rescue Me" in 1965. She also collaborated with artists li
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 0x6f7bf33c80f2ce1fd914ee91917e9518fca676c8b94619d967fa4c308c5b2d93. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2a2664c-f4e5-4998-b509-91ab2f660021.json and https://artists.proofprofile.net/proofs/artist/c2a2664c-f4e5-4998-b509-91ab2f660021.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11fafaf90a030e7ec5fa95b7ff84a1403b633f1dddacf40ff8d6f8e0e391cb5. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:04:01Z), 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/USMC10346491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7717804c296e2e15988027ee1162fe350a820faf9c78f669c3c99c1d7bca82e0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USUM70600983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce364bc8800f62df098415056f16f3126c55f9ccaf9d909e1a48d5d4a94ce9d7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USMC10346483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5954dcaae271c72702ddb85af3095f271b52c3dd72a4c307103d8aa459ae2bbc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USMC10346485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04567f1be87a6de3f0d4f1f84af04693fd03f9067be157516c3094d5c63dc636. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:33:40Z), 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/USMC10346486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea53ac42d8f1f91654415ede68a8515a87523a47397b14fd847f82aab98fc0e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:42:43Z), 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/USMC10346488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397c3e697701e156aa339ebfe88c01ae18ff1510f85afb9de4ac918d19b32327. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:05:41Z), 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/US2Y30611168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3a441b131cdbe7822a8e231260e9b2ff2503516c3a0206f8602d71ef5fc15a. 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/US2Y30629028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc569e0094918a49ac4b2ffc17165e0ada9a6a3472dfafc3b7801f82c287dfb5e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES5831940106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e54fd0c2e0f3dfc7ba79bc11a53cde9bbad3c4e9208ea0d69781a6b1ac9d08. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCFB0101865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe213263d4a2643d0d3c7b4bb4c8cbeb3371d830ee19408ae40851d3297c5203f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCFB0408235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0df5150e7b8f1d5feb94a6b6210a8aca632593ca9e25749c0cc12fcbd4d0a1e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCFB0101830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0df5150e7b8f1d5feb94a6b6210a8aca632593ca9e25749c0cc12fcbd4d0a1e. 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/GBCFB0101830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5931dc287f980005a3ae3721a60fa0fbc113f67db8476e3ba7f7426b7f7143. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMC16546885.
Chess Pieces: The Very Best Of Chess Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefca9e8efc8ba3213baad6f944c861fe66c84e6c08c942ba74a5507d16042603. 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/USMC16413311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5931dc287f980005a3ae3721a60fa0fbc113f67db8476e3ba7f7426b7f7143. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USMC16546885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5931dc287f980005a3ae3721a60fa0fbc113f67db8476e3ba7f7426b7f7143. 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/USMC16546885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5931dc287f980005a3ae3721a60fa0fbc113f67db8476e3ba7f7426b7f7143. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USMC16546885.
Save The Last Dance For Me And Other Great Hits From The 60's & 70's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6840a9e38fdb24df2c07f80c62023404c91e23ea2378848e0fc523d8f8fdb0. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USACU0504849.
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