DP may refer to: In arts and entertainment Film, television, and theatre Danny Phantom, an animated television series David Production, a Japanese animation studio Digital Playground, an American
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 0x6efd3c03596f436a60da3ca51d225004d880fa056b33dcb060929088233391d4. 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/bf300494-6faa-4ac1-a0cf-5b602bfb7fcb.json and https://artists.proofprofile.net/proofs/artist/bf300494-6faa-4ac1-a0cf-5b602bfb7fcb.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 0x470262d750123032ea8a118426746666a0458d9f79b044602aa04ace9f329fd0. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZFZ22428304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac81d6fbd3dddc9cd06fa8e3f3bea7457f8613db9b083995cb6c3bd7f41d9a8a. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZFZ22428307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b5f78a689d96dd1de6d266912ebb39ffbc31bcd675c998ea84df723afc5bda. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTB72338550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad90b3b48728befcd6e52c79f939cbed3a10d3436dca0bde5cb5314d83e5c89. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZK6L2460733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11e76c5b306b5ccaf62e9cdafb03570a3187f1960e6b8db33a78863b58c72c6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZWFK2471417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcd3a069b4a4fcad62a6d5bf3211460e7ce72f5975d0048af057f318f785b5c. 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/QZWFK2471418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e9b86562afbef5d800d14293012d21bc20d5f18f16d975bf25e8d4e6c6e21f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZPLR2550793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf5064c5c8f4932fe96053d7faa561a0786057b42f64d077c22fe8616aa29c0. 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/QZNWY2566551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d04e2d8df0a55f7d3e90ea1d51af57b317f32b17ff8548a95465d93adbba09. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZNWY2566552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a2ebc7dfd670b28483ccfc616d78ddcf45c84f68aa7318106d52710d61977c. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZNWY2566553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d4c2163434f44b60f584c70d131a32ae4ad4bfcf082e225786a852cd087bd1. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZMER2531242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ad09e2534f658f219475012aeaafd4fe653a259431af7ad8b8b6959b1e81af. 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/QZPLR2550794.