Theodore "Fats" Navarro (September 24, 1923 – July 7, 1950) was an American jazz trumpet player and a pioneer of the bebop style of jazz improvisation in the 1940s. A native of Key West, Florida, he t
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 0xa9258c1d8d1da6e4d1a3f991a3741deb1820c076bb85e92494dfaf6eb905ce98. 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/b9b84425-8d0a-4ded-ba2d-ed749c0553fe.json and https://artists.proofprofile.net/proofs/artist/b9b84425-8d0a-4ded-ba2d-ed749c0553fe.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 0x4b0525c692394a3a76069da5df018fef6ff370c4592ec0bd3c39aaab962bfac1. 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/USSJ19900421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9864625968c7fc13b957533b7c6a0c15f99fca286ddb4ec415413845ea33ab15. 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/AUXN22128448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef02184f6e361d879a7fc43c80b57dd313b81f1bb56769372000991026a0e146. 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/AUXN22128458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc83ac5bf2f78243ac5ae4ced453e962bf51a6abc916a5bcf8cf7a196c79be9. 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/NLHR51961391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65139570d2dc7f2aeee1e46e0d7d3d6093b48a675e1862a20e4411d038346559. 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/UKU6H1913039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57060a865a209dcfefc2de21118fae453c436543710b89ad8fbff66e2cc6a0d9. 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/UKU6H1913047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd7f3038920a54d43a3e383d3f1eb442a3bf980ea267ed4bfe923d75772c988. 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/UKU6H1913050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278a67fcc7a4909607e20697a4c5e092a3df13e62555c6c050b1b4bddeb148f9. 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/UKU6H1913055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e313382b2f85732aeac9cdd1f67aaaca9b2b1d98b314b8eaf8e0d6239a524c0. 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/DEA371303920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae349d70158fe7b5edda597d3b0f79113b71c27d1a7afa946dbc8784b98a28e. 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/GBLGL1106062.
Fats Navarro Featured with the Tadd Dameron Quintet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19ff7574d8d44344463c6dce9d8c7f56549597acc0437222e1970fa41577e45. 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/USSJ19900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d7e6d46634e2b66eb34b55e4fc656181e185516306a2706e1ed733e09d5104. 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/USSJ19900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ba17140864ffa4daea7deb45e380f2d34109afb1483290914605e5edb086d9. 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/USSJ19900414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae3087a62829563ed67d2a1ecd26e5705f83ab74e20a68b24799be3c0f64b93. 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/JPCO04700160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05e3941334fa55059b94667d7c4ecadde5d79d4d5948aeae188b651ebdddfb8. 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/JPCO04700170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c9fb4ad94d7bdadc1d23f57b6bd9dda73dde88ab7ef5c5f62e97bd2ac2520c. 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/JPCO04700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43db41e045286df979518bfb4d439cb0a59643f6752e0d090b77def392f8e462. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPCO04700190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985a3b1dc33e69ca63c6902e605dc01962189fa467a8c3f5b141e4a965a34c82. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-22T01:17:34Z), 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/JPCO04700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33c16d79d4f3be6b74f88dc719aa3c35ab6222b084f1d1b2afa5a9b1fb5e1da. 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/JPCO04700230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f23a96b5bbf06dc383f02a448606200adcfd12dc6b4f3c833d258f9148a7050. 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/JPCO04700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809c2abfcc2b819533b584eb20e13990ebd5542da58b5e4ba7d29251a2349887. 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/GBN8H2426825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e9e2a09499a4ba3dce86a747256372bd9f876984288816baf2ef49e3131ee8. 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/GBN8H2426841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfc7fe43cf4f60c5c31ed90ab3c5acd621aa6056e58bd93e1cea458fee046b9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBN8H2426846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a18dc4de03c93d02156c80e90133072c0a35d5ffb0e7b899f3fc1a388a3407. 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/GBN8H2426810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2953575336c3e250b596acc3567208016cde500a09d5cf02165a0e0e9bbfd6. 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/GBN8H2426854.
Fats Navarro Featured with Tadd Dameron Quintet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f807c873399c108f58a3d20ee4256a8d822984612cb5312c91f8c28ccefd7c0. 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/USBN28900039.
The Complete Blue Note and Capitol Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b45ed936dc32a7780319711201f23c54c832342ad41439949b579a7609d409. 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/USBN20700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f4a62c14cdcd7822a8bdf8bd0079db89e99261c3fb42fb9ed9fea783c0670c. 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/DEBL60359707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc353940d90f089d61568ad9b2cb23d6063077073eb541342399e18543641f71d. 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/ESA012216129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbc08e2a781fa5085e22bb36a5ffc15e515eaaa5884e99f6843a4666308dc4b. 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/ESA012214655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c09b6f2eed389f84dd4e80cdc17bcc57fc55a5caa34b912bdc96b5610a813a1. 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/USSJ17000600.