Dib, dib or DIB may stand for: Organisations Danish International Brigade, a Danish military brigade Deutscher Imkerbund, umbrella organization of German beekeepers Director of Intelligence Bureau (I
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 0x967f395c7e52be6426fa0bd206a3f43aa3a4d836af6f5a608bdc16ccb1d4b3d9. 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/bf98eb2f-f219-4b97-9be1-48a3f89933bf.json and https://artists.proofprofile.net/proofs/artist/bf98eb2f-f219-4b97-9be1-48a3f89933bf.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 0x8e83beb78c5bcf8c2c483e13599020713045e3cd3b82cce1cba5004776decc94. 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/QZMEM2278455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408ebaef5e060189c413ed54c6af2c3f15279b98d47f24b964ce37b246a35b61. 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/QZNWQ2204477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a0f33fb31a6222c0202f134698cb5e62cd6a797ced9b8a9f2c4c18858dbc29. 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/QZNWY2212841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d5f9a07af16fe498dfdf81a5e6844694717f734afbc63744882cb57850ce82. 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/QZK6G2324318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aa6ac1da0fce501fccf1119e1d0d58e728b7776ba1492a0f424fbf544bf573. 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/QZNWY2316251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2dcb29bad8939b62da669fe9d9dc8d494dbbb1a38e65b296028006723e25a8. 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/QZTAS2394466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe642fd7b1989b31426ae123e771f5afa66cc063b5d6e21e1430f5ad57ff9d7d. 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/QZTAS2394467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397be4c139c41ae6c7f711e1f3bcc037c6d3eca702ad565729c342e166e01d3b. 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/QZTAS2394468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7c94229394086d5ff43b32e1a6d1c3de92a63e29b9c1b6b2f57a70aa2897fe. 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/QZTB62329950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc83468df84c9770e2887f25e4dc756d4064ccdcc13ccb0392b68964dab703a7. 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/QZTBF2422785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa484154f53401ad2b85877fbbdf9ea211844590e895f0c052259d406b727fabd. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZMEM2501816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe38f261e9d3c16559d9ae45d5e105ce795e02d00080254c96ceadf44a2214e. 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/GX3HH2368505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1a9743bb5d1b4280581a181aedfbf2d89b65358f09011b7cf83964ded4ce8f. 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/QZTVM2467317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9a036b815e425f251af0b61aa799bcc5c1bf62d2745d823cbccda45c5974b6. 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/QZFYX2311935.