Booker Telleferro Ervin II (October 31, 1930 – August 31, 1970) was an American tenor saxophone player. His tenor playing was characterised by a strong, tough sound and blues/gospel phrasing. He is re
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 0x6b5ad55f25bf44ea13541e2469519cf2a7c542cb0dfd0eba59933c4d93d2ed45. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35dcdb2b-502c-4e29-bcc1-b06c7e64b488.json and https://artists.proofprofile.net/proofs/artist/35dcdb2b-502c-4e29-bcc1-b06c7e64b488.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 0x1f4b46c024b0ff368152277f35cc2ea7c99704e395ccc0bfbf796d575c57dd01. 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/USY251989223.
That's It! / The Freedom Book / Exultation!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620261eda5fd161568991ac15d8d5feeb9319fedfff687bda9d8d435bed6bd37. 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/QMSGD1370012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e301132dc102c916a5d28a9c78d72add5e03883f616f9bc625f08a6bf29d80. 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/USFI86400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b14d5797f2b885a878b1275ee15619e25315ed19dd61d31e71ee586452508bd. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USFI86400257.
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 0xefc251dee1949f9e908d1af7e3c50f59497dd018e52d2a630a859c863b3e7c10. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USFI86400258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81895f092c3c698531b186c398d7d05cd4a7baa54f978f97dd3cbd4ca2c1e83. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USFI86400259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1bfa1e2b53042d4ccb99ea65b4978d67308d013eec69fa69bb40ff8cbc36e7. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USFI86600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0cb0e1e3c490a50a8ddf00f09c2e891bec63a6601ff640cc0582fbcee54a26. 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/USBN20500173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032ce51af52438209a1db92a417519dcbbf89ee0d4fac00df46f62767a0a07c2. 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/USBN20500174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba7ef43930b69d59884750f951fb2768f67ee193a495956d80ba7670aa6d961. 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/USBN20500175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41707e073d4517f10f2fb39567c6398d50ba4a6ed7f88f580f75010a8f59ad4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USBN20500176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92341f9e1a87ffe26f81d29277dc00bff7e8e3e8280c3fd3ef5f9207b0e202b1. 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/USBN20500177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432c7fb856e02520798990dbf244854cb5c1e9c7427f42305143bb3ce1dfdc46. 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/USBN20000682.
Dancing In The Dark - 2000 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5026ba9ff11e64668dbc4c9cab314bd0097df5d29946f1a8fd5eb3cffa210877. 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/USBN20000683.
Stolen Moments - 2001 Remaster / 24 Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc845df6df67d7057513f11c50626c999b4b648dd9dfa8c095c4615d4967f0e64. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBN20000684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910bef2197079ab4e03966d9a18320886acb597d6978f5e19a4f6450220c1efc. 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/USBN20000685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ddd4a7b212d3fab8bfc31341cdc5c90b0c7f94f2ab7a5c0f2dbb7545a75aaa. 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/USBN20000689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bb90e319d6cc43de769b9fb125be47133990bd2d8a4a277cb77dc15e510e4c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBN20000691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ed7f10f0cf0e2d0fb24b6753fc2d378de1222c5f242aa13461576bcb904b29. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USBN20000686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a284868099bd222ef4db23cef524437f14269eec5189455a64fc4f815362ed. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USBN20000687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617507975bd4e80f9b8aefcc6319a7b29be36e0b2003ab7a2a939985ef92eb42. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USBN20000688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b80456d16e9c5009e6a3db491242952bb098967f11510bf5b9edb0fb86a708f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USBN20000690.
Deep Night - Alternate Take / 2000 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627324947f05dd1863242890c0568f636afb54ad8b7abf7a9c3e471723c29142. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USBN20000693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5328d88a86ff4708ff8012c38d21b7d161567580a2efd42ba2010b0dc621627d. 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/USBN29800216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c88cffad6491681c3cf02b203323b53b0216dec8a2bec6a3b222782a1c430d. 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/USBN26800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17093a52bd31df7aa303f68b05bf97fbde6f76159f82d4cc6aff0c717d173692. 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/USBN26800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2919dcebdf4120e62cfe8e54b8dab2dc54876484efcd4008229a51df82e31954. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/USBN26800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2add86b10f3221bd5db1071d81827b7b7660cfefdf4bb694265125f1d3b36db5. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USBN26800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62427efe368b7fb901dabc86e7aff5361461c2f68d43d811c3194e19e657fe4f. 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/USFI86500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70f7a5817088c566d20f61822bf4fa501fc50faff1c84d436caa5a75c87003e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USFI86500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae7058205a282099c26fd6de9d5a83a983d349ed54605bdb3e859b010553ad7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USFI86500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd8fb67bc9ea51c459897f3e768d4064820efeb5c3220d686b8ffbe1195c6d2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USFI86500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe158f6d3fc05ea04319364ca0b8ac0a91cba37f20467699e698783c15b5ec0c8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USFI86400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d4d4afc2250d8189d73daee8cac743b8509366a8e3272ee34efee29393dae0. 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/USFI86400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854a16615f9fa4fe38790dbfdef2e1e984efc45d6697c7c2e7fdc4cdd781c2b1. 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/USFI86400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4c00a5321afdf903cefee87876d090b25ac3b7ffb0e474123a9bbc1e46a29d. 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/USFI86400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b10f6905b605a0b5e731176a8096e7e78d0a73aaa061cc25f188eef08640265. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USFI86400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe661657661863cc9676d981e1d10eb6a5d8c5b24f567cb3f996a51fd9506d66f. 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/USFI86400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c48337b8217045dd7f6e69f67a753680aa82eec94a4fb9f6e9dfb6ff6a14400. 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/USFI86300438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463e1a75ece7891ced76ca6475aafd24e77cd7167f8bcc860fe1090d198271a7. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USFI86300437.