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 0x3d7bbf99ed460f00652116f4a6fe051e27f2c8fd232ac1744348b7e1f38c802c. 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/71132289-a719-446b-ad2e-8d1f7b05ce35.json and https://artists.proofprofile.net/proofs/artist/71132289-a719-446b-ad2e-8d1f7b05ce35.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Tonite Show With Sleepy D "Sleep Talkin"
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 0x4c506a3e6610bcf4be0982f8f75095703237f8b23405ccb50c593021cd26c816. 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/USUYG1081227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2524aae54221beb7cfc8f615d3fdc945429e9a7d389f4334f2b44154f8e4113. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USUYG1081237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f53274ebfc91db8289e2b6cb77bdd1bf9809b4b610e81fd0dc5e8aab845b5b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USUYG1155784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16239a4bd8116bd2e347ceb5f8964bf96e34ba20a12b57a48d5b510ec8164a84. 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/USUYG1183190.
Used To (feat. Casino Jizzle & Yung Face)
Realer Than U Think (feat. Mozzy & Sleepy D)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f79a631905dad0f2114321a420bad1ebb46ef9e969df255acf6b429b8d2955c. 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/USBAE1310657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7cb0162474dc95bd25f0f7550269018b44d9ee677b6de067c48323b2cbe3a1. 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/USUYG1204257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409e4a1ec7d0f95c8c8d3c40e095820ac8a3ec71b35f5c53fe6f856702d18b64. 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/USUYG1204263.
In the House (feat. Sleepy D, Juneonnabeat & Rico Tha Kidd )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1dac8294a27a57605ff52ffa9eac4996db8c8c1c1965ab7486da6e341ddcf0. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USUYG1204258.
What Is U Talkin Bout (feat. Sleepy D & Marlo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ace6b24b3d9d87753cc6b3a5c12cbceb6a63cee7e05f85f1ba34d9c35bcbf3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USUYG1204262.
Been Thru (feat. Rayven Justice, Sleepy D & Marlo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f9b3b11e9148111207aa49c3e143cf1949ac5f94bf41012dffe02ace5a6664. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USUYG1204267.
Murda Gang (feat. Lil Blood, Mozzy & Sleepy D)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d0138a3381c2d4cfc9f107288e2987ac4e7cd3cbcad33ab1700825a719d96c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUYG1204268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa539c4cbe37e12d9653af1c4a9affe41810b202abcbe0112a08186fa1e4f8745. 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/USYVJ0910055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a72bf6178dd2df71b0153371dd9b34abcb1a5ed9e5b5333e3cf035c1c732fa. 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/USYVJ0910058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6754f3ca586389c03013c0216f447518c124a86671402b55398fb1193a720e. 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/QZES62379104.
Don't Matter (feat. J. Stalin & Sleepy D)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa2dadd5b26b5652a4cf5b45d5296dde6f353d0bde0b5b272d5cfc468b84a33. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USUYG1148146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33631174cfbb3eeb25c62100e96ea1cce98a03b876beb96e3d00500b06f2372d. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USUYG1217285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc78e13bdf29fd982b0e3ae42c677b56653da60f5cbc837b90ae8509f417a80. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/USUYG1274238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade0f6881e73c94696bbe019fc94102e5c5b3c3af9c5e741f603f8a54c29a38b. 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/USQY50959641.