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 0xbd91d8cf405151dcfec5075b07d0052214c0899f46d71eaa67386f14c66c3100. 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/d4515732-61f1-4a55-886e-628d36d1e75d.json and https://artists.proofprofile.net/proofs/artist/d4515732-61f1-4a55-886e-628d36d1e75d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Job (On the Mob) [Mikos Da Gawd Remix] - Single
No Rest (West Coast) [feat. Iamsu!] - Single
Shake Somethin (feat. Kool John & Mistah F.A.B.)
Handful (feat. Rexx Life Raj & Guapdad 4000)
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 0x305f8b7133f580e42cedc3f8cd344478072da5ba789d940b863ebaafdf6968ac. 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/USUYG1466604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16ba839782011fc0e41a6da88abe4e718da9c4063ad0d4d8c60aa1a6ba6dff2. 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/USUYG1112929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384ade00bdb106ca468d2c3687e31eacc65a34f504229421144833653d15fe05. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USUYG1127829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703541b22589ab40200ba198853ff1a4649715de3d5d7ebe0111b50490cd8524. 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/USUYG1088659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb93d3faa315503162516efd7a750c067acf4b9a3aff18ce231b2a1e6bb0a07. 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/USUYG1101423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496ab35c2a03d589065666b3660f9a4fb6b67c69dbcfa8a99770aeb43fa4da0f. 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/QZTBD2388514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c04c339ffaee171f353d60237ec7c73ff494939b42775ec90073499205b3c8. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TCADN1835668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c55ea11cc30899b1c237567c1079cfa6835d96d76aafdd6ffab45fd3811665. 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/TCACX1719555.
Something New (feat. Sage the Gemini & Ymtk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6476e6375e59b6b6a2c9334c57d17a5d591b1d27a759475d4491ab4d02acd2f. 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/TCACM1682863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb38f64b5f1f87f56d5556783dbcc93dd8d14e55fb2d8b4250af1850333bff8a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USUYG1110760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7cf15fd3c55365868f398b949bdd3d16b09815fb634f82f775ec387a50ea73. 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/USUYG1102449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7abb87e2f5d15b06ba93120badb16e70a4e6e438c30dad98dc44cc30649b6e. 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/USUYG1325902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb2029a65f264730a57b7a1f761212f0b1971a2f9ee82be0738a21403b44398. 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/ZZOPM2117399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9c0a7fdcd9d6ad713eaf6e45554d7488891f30e18d267220ad1dcfdafbad4. 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/QZN882215387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cbcb8bc8bbb84279b75a1ec965b604f4b5e8b420439f5851acc19da0ca59d1. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZN882203240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb115df82a38d6ce7b07408a6bb9fe19475588c3dd3565c5d7444c94b85b33bd. 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/QZN882215389.