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 0xa5dd21065e941406352e2197b198d8bab9f9400a20226b5e40499fd7c78969b6. 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/cd20ec08-1a15-406c-907a-b76c3d82b21f.json and https://artists.proofprofile.net/proofs/artist/cd20ec08-1a15-406c-907a-b76c3d82b21f.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 0xec89693a7a03ec6ef1e275252f8346a544fb61e7336fc6a0a55cf3b465202e5a. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/GBGZW1300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadc431637ebcb9a9e3d16f7666932cb528b7260d4c1c0ca7861245a698bac06. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/GBGZW1300273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7f091d018f79e464d9398040a5290d9e4d32d1465bdfa4850a2b994d131fd0. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/GBGZW1300274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d867468e2414e8834d30cb5d859dc05f5d4731a526530b950bf85a58f0ed04d. 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/GBGZW1300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b9eb56a10f09f9df88c6d83950daa06e63f6ee5e30e9869f86ecc12b9c84e2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBGZW1300277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c1d686d1268753cfb347415941d6cc847a706049d43ed7fbc3cf4ee3c26fa5. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/GBGZW1300281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f74f8e2549a89af72a815939050e776f0604a999b0975776c5b02eb1a5a06af. 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/GB6ZW1500651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f9d7769f37773529e0bc8e119c1c71b7204f80a0752caa051a148d5e73458c. 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/GB6ZW1500652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47646ad279f4b5b42519e99c9624bdb5a1f2044d77d80511fd355f0c9945d7b. 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/GB6ZW1500653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7294067b18ff71068cbcf90b921b73c12ee417e79a59681d7bdf5cef8a6bc64f. 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/GB6ZW1500654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83358e74923ecaad1552afe5c22c953ed4e993781d210399f8a1faf1263f314. 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/GB6ZW1500655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dfb89b4b460a6cc71222233a7124d903d884f5efc79812a0572fa1d9df0d6b. 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/GB6ZW1500663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11fa470a002a59d01df32cd7b56bd7e2374511ec7adda252b229a819934592d. 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/GB6ZW1500664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48fec8930744107503ee595982d097883f8ee57aa2e79365df5d4f7cb7f2c4e. 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/GB6ZW1500657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38fdb6963518072b351fa0798bca15b3cafe3c5f271419cabe03f0bc4b61b64. 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/GB6ZW1500658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f9a1ddf40942678ade813535bee7fd8b3a302a3c181c0340c6bf584fc89609. 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/GB6ZW1500659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4144aa34173e1bf430ea9844bfba7d4d5efdeff1d9310fa85ce2d52dd1395ca. 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/GB6ZW1500660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2720881df7dbdf53cf0f9c7ec8fcb4f22924f5baba2f4d273ac4221dbecac62. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GB6ZW2200388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa525d4b1d75e9b489f3c30ea4921d5f8ccb45f5f5a20683ac77fd18a2c32881d. 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/GB6ZW2200391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf1e4f5f152a5c4acf7e784eea09cc90e48fcc5e2fc22fce9d9e7d108e265be. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GB6ZW2200683.
The Sooner We Die the Sooner We Can All Go Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4b253a6b49900e1642d363df9b7ddd19a1f86c8bc75b7643c183acb6640771. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GB6ZW2200689.