The Sensations were an American doo-wop group from Philadelphia, Pennsylvania. The group formed in 1954 under the name the Cavaliers, soon after changing to the Sensations. The group scored two hits
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 0xe8ce7a0a45137576ed85564377992f188650b6beb586717e176fa74c07b3850a. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f3f5fdc-658e-491e-8fbe-6b063ad94c70.json and https://artists.proofprofile.net/proofs/artist/7f3f5fdc-658e-491e-8fbe-6b063ad94c70.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 0x7d3e3f561527feaaf7bf39da3610dacde7faadbdff42ae1a9085cabf6363a781. 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/JPB752424601.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f8fabab79b5c85068abeb01f9b9e1e2112ecf5523aec0d7d5dd7e42af7aa99. 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/JPB752424603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd577ce24a8611d20d63e5ec0533b3885bcae2c477d69fcb2e38883f0b1127be2. 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/JPB752424607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f7fdf09ac7a7cc39a2660376dc73f5a74d769b66358bc75e41b172603d94e5. 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/JPB752424613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79e669de9411713c938700187f056da7121538c08523ab1d79c1885c34a9f5d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPB752424614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd269b5dd9191fa1c86c1e66f8d01812cf8e4fe31056d18ea52af8f5d5032d12b. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/JPB752424615.
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 0xca17e3d46e4b61f4f6afe9d0491dc1b05fcdc8d5325f0fcc39be22cac2ef7057. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/JPB752424616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cc65d0844cdcf2f9a6b6a5dd5978ae1a02e7ce65ac0ed967ee4000d9bd23d2. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/JPB752424617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23cdd348309a88605cd1c63d80f035135dbb9f4df5783fa909eb88b2095db77. 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/QM6N21856174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2395df7c47ad06399e926a720ef2e44425e1775e2bc18a3b514f84b1a0325e17. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QM6N21856173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285e28ebb9e63da23a579a90ce8364cf205c3d11689acd6ec469981a7f7336f7. 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/JPB621308047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde19349d9790acc23cc32cbad64bf5e0390e5f9161bbf64cab15e0b62e36058c. 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/JPB621308051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485cafdc07e00129b232cd04da8721fa8aac964c65b5a6e218c0d9702b7488b7. 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/JPB621308056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec56deac64ce7d98d3f29e9d426216dfe3d7269c29e7384bff534aca23250c0. 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/JPB621005113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c47fe40a5a0dc9b704d35dfd3bba2e5456ad900faa6bb7257098b9839abd12f. 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/JPB621005114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d65bd0329a4929443dc56e920dc1b2f9804cd51e8172705a5d09a6bc26c59be. 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/JPB621005118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bfde2a7aaf979124ce266e38ad06e0297f91bff99cd3251f70fb09008ccc4f. 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/JPB621005119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387900a0ce5644fb0939e51c9056bb2df1b374b3cbadc83f6381984443a948a0. 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/JPB621005121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bbce6b3410820a8dc1807daeffd60c266cadd9821b7af4794d4304c1b4cfcb. 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/USL4Q2446327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d801e5a7058e425b1f8535dd5d9086162d9e40380c08870407c30c013b995ab. 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/USL4Q2446329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1874883555b2055457d60d5b279828d950fbe14d4a57cc5405c52c2b2d0e5757. 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/USL4Q2446330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab61a0407ed44ad5e40a6ea5fe29a507c3ff873444fef6554da3a0a0d15f599. 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/JPU332400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981d07a8bc15adc9a236c9d91de2e2bedbe51f9714de84c9f014c68969137945. 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/JPU332300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d71956710e0e5ae2cd245414dd8b9f7384dbc3be44d3cdb1660a62ee2474a4. 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/JPU331500291.