Down and out may refer to: Music "Down and Out" (George Strait song), 1981 "Down and Out" (Cam'ron song), 2004 "Down and Out" (Tantric song) "Down and Out," a song from the 1997 album Symbols by KM
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 0xb2c26fb1eca0bce0e12a6fd28cba8e082b8bfa77cd7ce07b70d91c437bdd087d. 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/813ca598-505c-4e4f-8f45-62220252f1b0.json and https://artists.proofprofile.net/proofs/artist/813ca598-505c-4e4f-8f45-62220252f1b0.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 0x669000bbee0d945b163ebb363810936d50fc3cbfc8190c6f94f3bc94bb6b3703. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUBEC2182159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081f3f1bf5f556b05392dd8361817b1dc5772bc68705eb1d97faf083624574ad. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/AUBEC2208395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669000bbee0d945b163ebb363810936d50fc3cbfc8190c6f94f3bc94bb6b3703. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AUBEC2182159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c33eaf3afd7d1ddffdc91a9f5f578db31dfb8960147037356483844449a19c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/AUBEC2231581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788e992f9376cbff0eb2d58a9645f3c7bd4cb1a52df1f02d51b76871797cbd4f. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/QZMER2357421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d5d97e8eae762f2aec251b9380c4dbf93524d2caa1f65f14f3e92b6aa9669a. 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/QZTAT2416138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f4ff79fa1cc1318c2e3321e3ed122c1eb9fc2dc316a814a27b95627e71fbf0. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/QZNWU2454326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb828e6620f00087e0028926145e0519a412a95b9f0a422625cebaaaac7b77c6c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZTAT2416110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d5d97e8eae762f2aec251b9380c4dbf93524d2caa1f65f14f3e92b6aa9669a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAT2416138.