Attitude or Attitude may refer to: Philosophy and psychology Attitude (psychology), a disposition or state of mind Attitude change Propositional attitude, a mental state held towards a proposition
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d3e7d5ead5e775f55592885f2f6d71aac658d016c0734479cb81d65be54432. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5b4bdcd-7858-489e-a54f-09fb04528fb4.json and https://artists.proofprofile.net/proofs/artist/f5b4bdcd-7858-489e-a54f-09fb04528fb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Key 2 Da Streets Vol. 2 (My State of Mind)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df4cca38e2f291fb3f7c05990475f1fafa5d54dd5d6dc7de137c03e557bef99. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZAKB1910774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d1de5147a2fd52d341c83919556ebca632c4f77da4e80fd24d0eb1a71b1fc1. 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/USUM70727466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb0e95ef105eef5216193144d853afe9722a94de5d99d1d8a32ef046b555e72. 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/USUM70728216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1af61465823bdbc3f87fff74a88281edb22cdde832a5147a90ec498a679eadf. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:56:45Z), 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/USUM70744435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc747c2bd78084a8fef2e32d68db1b0c953aa2ab1642b59a8f91974ed48d4ac41. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USIR10312211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc747c2bd78084a8fef2e32d68db1b0c953aa2ab1642b59a8f91974ed48d4ac41. 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/USIR10312211.
Symphony (Featuring Attitude, Bran' Nu & D.O.E.)
Shock Value II (International Deluxe version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff02711765bfe51a734dee3c4bd7c6e83a5926115ab5f73104f4110ded56a4ef. 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/USUM70913843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7e1241fc8a09f53eb68d241b26d257994565b3a92392b54797c0c2ce4f134f. 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/USUM70603364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdde02406ec59cf9c27a37ea08d951bf62e09143a6160669960ecfbd6df056d. 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/USUM70723171.