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 0x6a5790fb5c44254bc025cd6f67ba47c761ae55e6a2fc196a3bffd747608a1640. 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/e49ea009-5842-4736-b82d-9a3dfcc66f7c.json and https://artists.proofprofile.net/proofs/artist/e49ea009-5842-4736-b82d-9a3dfcc66f7c.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 0xe6216f719979b799da342a6c9b427f9662ea676e77b679af02b47df278a4ea16. 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/USCGH1778462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281bfa84b3ebb51f7de564c23d7d9e44f819ed14a5dc72e24edbc663e6deb821. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USCGH1778465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0765fc3be938953bed78d55e149b25e5e7062f51f7b8f1b32465b604e20decf9. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/USCGH1778466.
Pull Mercedes Up (feat. Payroll Giovanni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c12474e9a9a9d5311498c22dfe6ab7f55d845c7f146680896800417bc8e651. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USUYG1190609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343065ac0e3ba8d410e0cf7fb1830288bf545bb58de9eb38cbe13da872c1270e. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USUYG1190606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3a8b0b4d36c8d4d54975c2a30b29fef2718c9bdda0ec0ef09a9fdeee24edce. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/USUYG1190615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188512d2dddf0fee56383ab179f9742e2c24dd7c42e1b97833b181e3e3da9518. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6F2091569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf427dd7c5b349c1baaa83d04c10564cb4d118da2ae708e387b9d507c2d5570. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZNWR2295492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d796f8ffea87257968a6a01b0136a91e38e9c23afc68dadf0b88e10e8654eb. 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/QZNWR2295494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdfa7a4234f342327eb7d8ead7376055e23a523f49d4e274c4ad7ae7e421b85. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZNWR2295496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca3ccaccfb04f091cbda4b715eff6f3ec1559d0fdd2694bfdea007762331a83. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZNWR2295498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2455dccd9b314993fb155586a2d500008a9ec6b134c1469962589efb917b1eed. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWR2295503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9caa635b9c191f049b62394c4dae0e0a32a6fc94f27985a8067af65f4bc98237. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USUYG1508178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6ad7b26b8737346007aca1d4fb68f98de95766d673c42fd4cd786c7a6051c6. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/USUYG1508182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9204c7f80d3fbf88ef965f4f4c4f9643a4f8594d3926291e273e2ec458d0e4. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/USUYG1508183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaced4c066ca8132adfba88df93fc4c8e3cdf74342cd5e0113b9fe7676be234f1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USUYG1508184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18320e5dbbc86e2287f8c498ad9b5a3a294039a0c57566f0a1c86ea63f747a3. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USUYG1508185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bb43fd6011d3dad731558355ea6ef21622a0b973f4c431f086be8889445726. 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/QZK6F2518389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edb2e32bb3e69d2fc77a6d05a20f51f73b2902b119b17b4f15b7cc448e7f4fc. 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/USUYG1316934.
Whole Gang (feat. Babyface Ray, HBK, Icewear Vezzo, Overlord Scooch & Lil Perry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bede3c0efee4e6a285a8b736a0bbbf5d8935f5dd8cc35589177e01b2ca9847f. 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/USUYG1316942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0fe112934556ca703af2bd89a4a81e4baea2282e479e37c6571afd172bb045. 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/USUYG1503038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256ab32d26eef6eb6cc7c69cdf2be46ab5134b45adba6d44bf5c9978d22d14e5. 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/USUYG1704636.