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 0x2f13354bfd8a67224cb6ff259aa82a640b567056e0730036324e6bf9c6da5e81. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9ba7a71-c3c8-4d9d-b3ea-dda9a3d98a82.json and https://artists.proofprofile.net/proofs/artist/e9ba7a71-c3c8-4d9d-b3ea-dda9a3d98a82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Night Owls 3: The Chiropractor's Goldmine
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 0x90a3e9a7dfb63ae53b2f53a5693d59c17cc5096eb2ddafd21cfd7170bc08c92e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USACX0801977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac964539e2050951c337c01aec444f3a228c4fa2ecf0e9b69849bef06882b10. 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/USACX0801983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8115b6d1ea86b83954563c0c3339934b3fdb508de93d59bf961080f4f96da510. 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/USACX0801987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0396c5e6a0f2e00ffa997bb8330618ec6757b1c9cb891cca79c5161230f027. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USACX0801988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d706c4d59ebd98ad712a4c944789cdf85e8d87a9141a8a07a9f317a304b9de0. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USACX0801990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d444c751fc0e2a29eab5016524057e1857c156d9224da44a3ea6057a85b409. 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/USACX0801991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dafaa82a0abc4f1266d876ae02eddb8d0112da922f4a87f37064200d0d57719. 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/USACX0801994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed812f572be422c7f5a39bbea078cd153cdf452ee8658e2c62fe79c18f30433. 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/USACX0801995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247ffa591fbec40bd21c5dc9246f3d21e5acc4ecddcbb41301de4dc6ce8f043d. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USACX0702743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3e3125a666976dd4b76e4982fb86b68f2a8beb75ae7168ba17940a2bed7c5f. 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/USACX0702744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32eb73cfa89812e9a69b6a18b09ffd27d1003c99ec6667afc43ce7bce3624db0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USACX0702748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35154fae432d4bf567977157286bc26d6fcae48369824653c17fcfa211008bbf. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USACX0702749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7f8d366c585581d012a9a69e5e4c145a8917927cac289557579b8c9c8f59f5. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USACX0702751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35feef6773ee0c2b50949133da3b209c81704e32a3eb4d7735b652cfe4ececcf. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USACX0702761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fea5b7a5f7d8655aa9a9b3eec1ae0000e4bba806cb9559489d363160f4d79b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USACX0701262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b42f39d57a4b99681a541b98e64489885a4c0d548e98cb585651e7aadf1c53c. 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/USACX0701263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b28352a3660fe1d598e0d830959171800526c194c6ceda17d5b6e10267936b. 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/USACX0701264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb06d67636a6a30b2c32b767732e90e996738a3f085aa7b7cdcfc99624bb2c77. 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/USACX0701265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0485d0cff3f80fb298d18704e88eb4397c15d897dcf53c611eb826aff01949. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USACX0701266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0441dcaa90f63186d8877116c825b4b101af96b33b406e00f1da234f7cbed9. 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/USACX0701267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19ce8cc97ebd74ebd55486f6d17b816a39b9e7ca60c73a027ca1f649a70eadd. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USACX0701268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e9ec964831f0e61e7197cc41ebe9d3cc43acc9ca6c195aedaa86d5e295aeaf. 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/USACX0701269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ec3820da8b63c3425dc9cb18f3268a1535212139cfc2aa143318781a5cb9aa. 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/USACX0701270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67b52d07a72cd4a602a300605c01cd7386456185f1a8ce081d1c4a545179726. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USACX0701271.
Battle of Little Bighorn (feat. Def Shepard)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636550d474f74012b462f8b966dd446af011aca513c5902725582cbb1597c087. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USACX0701272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8b6dcaa32788bbc5e23c6d858039cf4e62c6a591c109b67174481013cf89c9. 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/USACX0701273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a49bd5406a01f11b292ba1620dbfb227d62953ebac9a161001da003abb32b74. 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/USACX0701274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982b05ce929c926474deeca1bd73b0833b903ab3c94c12aad88623bb2f37a81c. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/USACX0701275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13954928eb328e25ee752e72e1ddb037dbcf438d6492be5ca00f5babd2e5ecc. 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/USACX1003361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2aaf2384bc3671588e47413579187fd09bd8a5992052a1365cba8c4fd64e24. 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/USACX1003364.