Scarface may refer to: Al Capone-related Scarface, nickname for Al Capone (1899–1947), an American gangster and a businessman. Scarface (novel), a novel by Armitage Trail, loosely based on Capone's
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 0x57d874339fcd6071b1592fcbca85908a02df8a05a7977ebc76ee4c173fc9d0cc. 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/98d8fc4b-f922-4f8c-9e5c-93eb18b553ef.json and https://artists.proofprofile.net/proofs/artist/98d8fc4b-f922-4f8c-9e5c-93eb18b553ef.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 0xbf1b7c502cb3b884e176d41dccdd2daaf2c8f735571a1208164a2e4a7a8d66cd. 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/USWB12204708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3622bad40daae0727ce03d0f1cf20b08c9aad44f6ffa7fef7bf64b6217a7f572. 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/USZXT1035277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604dc086002be377b36bfd0bf61ba0f345d844b5bea8fba48252bd16c4da4f55. 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/USSM19806307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1b7c502cb3b884e176d41dccdd2daaf2c8f735571a1208164a2e4a7a8d66cd. 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/USWB12204708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99db5067c814f0b79973273578d3eac21be8e92926c07f846737efefc41a9e79. 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/USUM71303786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99db5067c814f0b79973273578d3eac21be8e92926c07f846737efefc41a9e79. 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/USUM71303786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e00c2fc9a24edc2355f97a94b7a2d95ba89a776d14d56e614094c366a1af0c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USUM70763441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87793b3ea4936ebac53c1f7fa6f2f15f6f9ec9cfe38e70ccfe892e59d8324c9. 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/USDJ20110453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec74ea8b0e8d6c1a6e45cb1a7b8ef8beda0531e1104483a1c9ccf186e2bcc766. 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/USUM71401751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99db5067c814f0b79973273578d3eac21be8e92926c07f846737efefc41a9e79. 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/USUM71303786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fab4a1a06f9475ffa264f1c15a8f31afc3bf1bf1e1a72847970c9cca84abecb. 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/USUM71208072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf5aa9b764024bc5a14b1ae42d9d100c1dd73e5981619780e00fbba3b6da041. 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/USUYG1303961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f16cb831b81a012f8714464d40b77b6b2fa4c4c336d0f4c0742db36f1b59d32. 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/USUYG1376099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1b7c502cb3b884e176d41dccdd2daaf2c8f735571a1208164a2e4a7a8d66cd. 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/USWB12204708.