"Sister Sadie" is a jazz standard written by pianist Horace Silver in 1959 and first recorded for his Blue Note Records album Blowin' the Blues Away, that same year. In 1961, Silver commented on Hank
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 0xf2c4a0240c81614e1155490d71731a278e3c6f04bae79855d7f9c298d71c2016. 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/ed42f3f6-a2b9-4e98-b22c-6c25a9c071ad.json and https://artists.proofprofile.net/proofs/artist/ed42f3f6-a2b9-4e98-b22c-6c25a9c071ad.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 0x6bcf9753e21243d1133b335f8eaa4097bcbbac79063adfb033233ae9e150aa93. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USWHN1601194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f33b5c8b916b7d8df4fb50ba2d859228a15b44137de2a74f5fbd80577b9162b. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USWHN1601200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c53b5809c639bd3b621376776798822c10172e1bdb5cb8408c98c2368e3d4f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USWHN1801538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf21fba0d7b72a1178d78326c63dc0a2796fc33f193ebc3b07921a68288474b2. 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/USWHN1801540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860a8e9d6614d33e107a713e735f74cdc9d4f30dee48fd28418be47d6e765e91. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USWHN1801544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2228fed914825bcadcb2e2b3a221cc092eff9f70947261030357562ee02c2c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USETB2200181.
If We Ain’t Drinking, Then We’re Fighting
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185d0b0a0bdf9b0174f2eef180137661aaa9763fb71f467c81c37ac45f2d77ed. 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/USETB2200183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67bea072bef3b5c6d482ac5423f7536a7b5f591e357fa30d004de32a7b198e5. 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/USETB2200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf353a7d6325f55a7b552cd74a2a729d2184f6899b8b1665254103874428e210f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USETB2200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb63d3d0b737fd4152227d28611e600d40cee477b85ce6d262d2d855036b83b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USETB2200187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e47ff0880ad617f2c0099487f96ceb0bc4babfd7d0f1aadec055e4fc7b7e737. 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/USETB2200188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2651ca60d9cc6f18ea04628d2818b9fd4870ff4a54a6345bebc578f82f0dc4b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USETB2200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a4b66173ca9292d47c9a0fa470e425a52923e1058eed7ee129d1722db2cd3f. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USETB2200190.
Ode to the Ozarks (feat. Ashley McBryde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa65ae09d704aa2a8bd2745944f23662fca3d3a476c92a8442220e946fb4827. 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/USETB2200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1149f01e12bcecd197b3fbbd3007f61549dcac707032ab58e2890ee1af6ccb9d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USETB2400173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576bd7a0ab7122a35c17a92a90582f78e364f135f39f254e037e17ef0f17367f. 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/USETB2400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a01bfe03db9f62d64bad3831a2c934e00cd8edaa85cffcece469efb9edbd61. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USETB2400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea4493f67c2d0a35598db9ee62591aca96e84aeb024416da563bf9afb66f4c9. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USETB2400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a956b5fd57834377ec35c56907964b6d6f330c3bad72f77991839a195fa420. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USETB2400176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c249d7c60689508e743dc82202713557346be7c1cb59a401b26216d591ae120. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/USETB2400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990d0bb3075cf685054b9953eb89e2650ac22a1387bf158dab82c4c12531398d. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/USETB2400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7526730a84a505bf0793c98259ab8f695458b125e5598b13f31891fbef6afb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USETB2400172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edea9363115f14a93d7a42d1f58f48c6d3d716bb1ee21cbf27799d2fb22db23. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/USETB2400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2e7c76f71239caa52705d05ce4171592c63243620712b60c5b9b3be6fb4834. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USETB2400179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839c114b8d8069be14cbfc517e2dbb5c59c11989dec7cb16f449c3da9fbf94b9. 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/USETB2400012.