BIAB may refer to: Band-in-a-Box, a software package Beijing International Art Biennale Brewing in a bag, a type of homebrewing Boys in a Band, a band British and Irish Archaeological Bibliography Bu
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 0xc8a516e786dc9197f1c6bbfb6c06048e0b099aeb51ecc0005e00815e293e11d2. 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/ae1a700c-5cc9-44bd-8d85-1e7e47a987c1.json and https://artists.proofprofile.net/proofs/artist/ae1a700c-5cc9-44bd-8d85-1e7e47a987c1.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 0x7de925406bdd3d1587a39ff51f2b13a5c6b3ec89ea1d84a676ed33f32faba434. 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/BX75Y2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88914b9e0fd20568266b9afd6e1ef43f30b6308eb9afece8250c66138d49acba. 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/BX75Y2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3089d1ee72bdd07fb9da6d3b28c70be68041875988e4e248945ce72ebbe88fb2. 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/BX75Y2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd915c67a0f6c7b2f872871ba5168a487a4242502a520c45d67de29826e4a6fb7. 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/BX75Y2100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33deffed46913858faa258fe086ba4b746ecbbeb7b5b05667f65c57bdf70972. 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/BX75Y2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca9da225ebb71ec7364968a1ab1c128dafc7a3519a093a67477981c27cc529d. 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/BX75Y1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734f0671ee6b19a12929da107ea92030b859f555ffb55f190e4f70f6740b5184. 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/BX75Y2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018774568f883b41e5d0783fd6202ba3e5602f087c2abbb4e2b39a68eb510c05. 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/BX75Y2200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519b722f78ba3481fb7327e58bfc93149a34a20a0a9722c4344840607c5d562c. 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/BX75Y2200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd983ed7e300e8817dbd1a8e759f3c4766d4386734162d79898dcbd556e0b50a0. 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/BX75Y2200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b80e6611b0134f7d37f8327cee99b3da8bdeec6fa1c5eaaf4d1127325f9a91. 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/BX75Y2200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46aeed4753be02a5252af0d9c7c7d4740662fea84fd92956fcbcb76b347a1228. 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/BX75Y2200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac26a8820439dd5a55454eb5881a537632e7a3df9c1f3baeaa2db5d696ba0c4. 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/BX75Y2300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63242a41cdbacad7a026ef20180c817107e662402eaf2631da9a953f4aa9933. 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/BX75Y2400183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0332c605f6f681fcc365fd805e36df1a2b536f98c481301d3e074550e4b4939f. 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/BX75Y2200082.