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 0x317a3df7ab7ff8da9977608b66fb6aea722a270138c60cebd100d2f71471b7a4. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/041eff40-d517-4a48-87a8-1b0a4ffca77a.json and https://artists.proofprofile.net/proofs/artist/041eff40-d517-4a48-87a8-1b0a4ffca77a.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 0xb364b3dd335f97c922ef1d46c1d3586ef1c4e1fea9a1b4e824fb5695533e6a35. 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/TCACH1575010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0cdbcaddd02d4c8342f2bf4bd16b5627a5d621f625dd5820f9bc98c427c3be. 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/TCACH1575018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf9e57976ce42a0b015e552d2575a3c92617f03149f20574a96140da8d95d53. 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/TCACH1575028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c595436a9ca5ed1a58b1a174c95a7059f4d01353117bac80ff2a7d0d1463e8f. 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/TCACH1575033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174b2b610ed184df9d84d6ca5efd4cfb372eccd085ba21a026fbaa261faede3e. 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/TCACH1575037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4c11309d562ed9f1f66b4b9bfa903099a6201ad57c050a6b11c8982c11c4b6. 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/TCABZ1426956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1abbedb033ff676ea42dcda0d34c965d5d955d632615605ed729cd1da240b64. 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/USUYG1075628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec269b47550c40017b9fe893aaffaf2902b11b239712531cfad00c8cda6544a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUYG1075629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73942b4f60e30f9d75d6e4acc5a548cbbf7a777f24109a651705520a79b7173b. 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/USUYG1075630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07281a15f2e780fc2bbdc2676188b0b64f71b9eb0f19271ad110ae7e7b100f40. 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/USUYG1075631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f334c9cebcccbd179b7c2f04bd8b0487cb1415fa5745dda9186529914a6dfb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUYG1075632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c472bd9f80cc86aea3f0936440a87b77a4411c608004fefb2a1b81dc529bcb2. 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/USUYG1075633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703462d71312a1d942b4d31d79de0a85f2bcd1cba078dd2a6fb6a50bca9b90fe. 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/USUYG1075634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9e80740d58495ce44cf8295997f4dfb0153d280a3745ea0d8a5a57e26351e3. 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/USUYG1075635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8ad41a48a45452371df1a6912e4bbc36ddd82479a3ae18a139261e3cbe5d72. 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/USUYG1075636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a8f732c172656855dc6b21dfa69412176850318b3fe086cc90455dc39cca33. 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/USUYG1075637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7257086f6df0458b7b740707bbbd78102b9b61e618e3ef4f718a56e0e35a93e. 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/USUYG1075638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90db50fa8cfc76861b045682de4649cf531c9cb1da96cbacb24c69325db7c9f3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUYG1075639.
Real Player (feat. Lil Goofy & San Quinn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94f6e82d8851749c234b2ec5d5315b713eec1aa8453780db21e2d2f0dd2e445. 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/USBAE1203517.
16 Zipz (feat. Liqz & D. Bangems) - Single