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 0x9268d3874785fc89585aee70d2dd6fa6b29e63a142f1276c468dfbfca36e3f3d. 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/82d96005-1e2f-4281-97dc-7b995df00ce8.json and https://artists.proofprofile.net/proofs/artist/82d96005-1e2f-4281-97dc-7b995df00ce8.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 0x25927a3c035ec451dc96f251a1bcff50297b94071dc14d3363f7c330a66801c4. 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/USUYG1530119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a3132f29067b93fbab67a7b5bb6ea9baa704b34734f7caed927178ccbb7b75. 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/USUYG1445866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b156fb53877870a58760760b8f930808ae694ef7ea5d000422b9af960471ea. 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/USUYG1445867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a03666910471e983fa0c9968bb8f04629a58617442438137f4c4c65c454e352. 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/USUYG1445868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a379f27d521a64cd1445bfd83d933bfc4d920f5a7b06a7944973bcc6bfe14e. 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/USUYG1445870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8cd51e71b6a7d13ffef94bfa59c46506fc5c91e1210b99ff4371eb200bebb9. 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/USUYG1440128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae4863beb91928b7d640bad1e3c5fc30c93cc392f673fe486e0a9875286c461. 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/USUYG1445873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c6de6e54ff6511b65f5810809e3a78d921f6177c0f52bb76181675054ae2d1. 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/USUYG1445882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca071625d19076b7989caa40dbe758c4cb50c1cf0bff99a193db4564df35508. 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/USUYG1476348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2887ea615d0029b8f554250f03db5572bb5c850a5e52679f399be49ccb88f52a. 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/USUYG1417745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e091e10f383ccfceb667f93f1f645c7f4791b83c21ebc8fbf105ac37c96e80f. 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/USUYG1417749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca071625d19076b7989caa40dbe758c4cb50c1cf0bff99a193db4564df35508. 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/USUYG1476348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe4ba0b0fdca15dbc94f7dd105e5101d8b6f4deaf10f76ab4f5e8c9d50ed88a. 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/USUYG1434414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60c31d186df35d12828c68413b0dfb2765864ca2ac72a94c8410fe9c4a4dd77. 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/USUM72217466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f8a70cf50d2b80cc78dad35d1265f2b5cc088272c1b3a1a16078f87599b15e. 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/USUYG1552984.
Show Me What U Told Me (feat. O.T. Genasis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d2a11bdb2c1bfe514b78e4778e0a0e9c929b33b38c410fa6c81df6680bc4d5. 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/USUYG1552986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8046e7f016c4406ae5df13eeb64f63c748e2d0fe1466925e01a52047be7d29. 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/USUYG1552989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0357b84812db9672bcc7c4f733386117c350246d35575844219c4c737ebf38. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d15f2f27a78957e820ae9c9a6527cbd791974493dbb49278c36cea849ec074. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9dcb794542c5b1c29a648366c06aa1e6347307ff3de897109829286927a9cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254c88d7d07c27d38ec814427905977fcc27b233720188f02d0cfc64fcc8fb83. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69751b5c63a18fec309ff5fe99a3faf8ea4b1074e14b9c9f3817fe6d6b10119b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f69d5ba2a1aa17d24c54d1174881735ada8e47964f89a2d397d522ef162ff9e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62ae2168533b8dd601386a954fc4d6c794d48ddd9be72f21b7b7f39e1f984e4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408493.
dodger blue (feat. wallie the sensei, siete7x, roddy ricch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eff78c97fde86974d3cb0a403a4fe08f0a704bf8d70198abb23a25688da26ae. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9ee3002ab4ba66477b53603ca6e7e28f8d1c1392766ef0c7b43632a4738697. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c41103e03da9e9fcfef53fb8ba11b0090161bd61ad871bcec0519290857369. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408502.
gnx (feat. hitta j3, youngthreat, peysoh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450a49389efd4f0d6812bac2dd9378b862f26480f01e0588d40268bd46b3d63c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731e356001669492c291f5ba7e69a1fb3fc9d90b947e9d210436edf75559a5fc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12408504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43afa3e07dac96f594bbcce47c19d86acb9517325d8322adc146ce6b5a4ba826. 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/USUYG1590556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0fad88281356376d9403b4fbf08335e380e53d0613329a14f6046473143273. 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/USUYG1583984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee658368d06fb389a426184120edc43245abbfbafff55f06fa8b606c7fd6d6f. 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/USUYG1582025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3c3658e4ab0b31d45d4787fcdb495eae13b6aff6789d88caa9542ca76f00ea. 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/USUYG1588456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee658368d06fb389a426184120edc43245abbfbafff55f06fa8b606c7fd6d6f. 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/USUYG1582025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9923e80a2a4b10f2b663b3ef82d0236317b6d8e6941749d7c1400219bd4eb1. 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/QT3F32499759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2413dc8e74ec3065529da4dbb05af385cbb438084e37251aaea37a7aa3e7e89b. 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/QZHZ62072410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75976347f7aa9fa910ac41b1b2e6bae3bd42d07645273b8f2990cdeb2de68255. 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/QZNMV2111172.