PLAF may refer to: Phil Lesh and Friends Pluggable look and feel in Java Applications People's Liberation Armed Forces of South Vietnam—Viet Cong's army
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 0x005569a1180a56f721ab20cceecefa94797eb9e9b81207573c1924cbae3772b9. 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/ff1df9fd-f0af-4d1a-bc16-cc57783a3739.json and https://artists.proofprofile.net/proofs/artist/ff1df9fd-f0af-4d1a-bc16-cc57783a3739.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 0x47cef51e2402596f28c03ee59eaadd9a289208cec22bb49c7f18d50aaefbc896. 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/ESA011901873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f3108840f5b8572329314a8db8b558526326a46713010301cb82b2fe927005. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ESA011901874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce05c0556a4d91d795bdc5b9266346978b957170005df6f665b652445e44462f. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/ESA011901878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6deb26aa9d62467c08acb9244538f0053d6dd854dfc78191d366d6b1bd5e89e5. 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/ESA011901880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5607bae9824218c0df09bfbc4d9defd603ef57998747e185cb9cc05d6e6eabde. 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/ESA011901881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de51f4f058598345a57460cd30f65fe7be083111d687b7919f934b169e37785. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ESA011901882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9f9980524f7ec78f951f5d18e5c3ecafe7a9bc6d0b8a0407902ed8db909bbb. 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/ESA011901883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cfd9e2f65dfa1966f37b5c59396931b667a14eeee40e7fb3ca46e0ea6fb088. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ESA011901884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5601e978942a03c0fbcd235c9fb888966d14a1c962f0aba2c66b209925f891da. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ESA011901885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f97d0cb678343461a196d71d3d16569c7ae8197f1ef6079e186b4a7a58e898. 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/ES71G2008259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a33c26b2ab3a7a2af56d29945ccdd0c8329f14fee1085bf4eff82dc53645211. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZN882235539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6fd4751cf7032148209d91ffe7b2cac5eb70ecb00689b6d5f481d31197cf46. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZWDW2210488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c51bd273f866591823410f36b3bd38ed7e7fae2edcb5240e7877e1fa02f8e1. 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/ESA011843495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23adb146db3aa671cf80bf7ecbfee647790d850e26a6627ab2e842bf65b98831. 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/ES71G2027786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332ce09e03f7cfc0a67e1ced2b6cd19de9e4d6c7b0788c967bfa322f4f6d37ce. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZYFZ2506069.