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 0x89ac36870c3ae1d931160fb15faf84e6cd6640a1b9aad985ea185a45088b3173. 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/fff33a7c-c2e0-4b30-9d9e-332220211815.json and https://artists.proofprofile.net/proofs/artist/fff33a7c-c2e0-4b30-9d9e-332220211815.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 0xf6fc945aa673273b68b9060cc23840a287c1f21c1c76e4ee05bd93de4c624bf4. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR10S2209969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e92bb82ba69b3a0a03222bdb7595579f933fa7f3fcc6db1898c97853773bf0. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/IL1042301161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1018b843fa986907eb7eb310f46226684a1ee231fad8fc7e1410bc61bcf781cb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/IL1042306191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1018b843fa986907eb7eb310f46226684a1ee231fad8fc7e1410bc61bcf781cb. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/IL1042306191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6ac804638d23777d509a0be704a07f3dfca08f3ef28bece1de8113c9eee0eb. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/IL1042401361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a101347f90774506755339263f2c6f352034fcb7cf365e8dcd5043d1b59900. 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/IL1042405501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e5644051b70feeb5adb9d8ea26d333cbd6333fb66719c67c0eeaa2ca7d1da6. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/IL1042405502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680fed1b8de8b9c25952db205abd8a97aa2635a8fa8bc43cb3a9762dc51b1f33. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/IL1042405504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d013f1d2326faf08d2dd6176416479c6f16c333fa8e9482454a08dbb9c339ee. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/IL1042405506.
La Petite Fille La Plus Jolie Du Monde (הופעות במפעל הפיס)
La Petite Fille La Plus Jolie Du Monde - הופעות במפעל הפיס
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb870836a24508b8e9f25e4a197b86f967a51a7b7b7cb85f36ef421c3bec029. 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/IL7532513324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57959e73857909130314630da935a1241c3a00ae42729bd814c45bda09995abe. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/IL7532513517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec6879b202a70290ecda6647fb2ffec74f2c0a103d958152ddfe68d8d0d3c62. 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/IL7532513853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bd1f27dce5f9a9f1e76423d09999c3472559dc0092dd7d7d468b2f37d7e7ad. 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/IL1042002502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9c5b5241ce59dac3d828b538328a8a420a37666a70ed497b7b87c9cab7c579. 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/IL1042002514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709736f4b49d8d94c2c6950e30db9ae40924ec7d8c1a20aa9de8473020ba8745. 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/IL1042002504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704ff696f57dddec653c9593fe34625bd97482318cffc1441936b9a1cc6f7c7e. 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/IL1042002507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50dfcc4f42466dc7be203306b1dbf6e69ba4d8683f8f65dc93577da2c0e7a021. 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/IL1042002509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e5ce522593ec0783e93ade61299374f6610ad60703d3f6fe7c7485cb28ec4e. 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/IL1042002511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9fc6afb7a83df60fbcfbc6f50a5a4c0b7d19acffdf5a38f24ed1ea4c93c214. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/IL1042002512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449713ba1b6a88bdd5b16905cdb6f885d01013f24ba0a708445b2302349c3104. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/IL1042002513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba4bae32833edac8b0f894c684f0f01f5fd287e1cb57513f25cab173e6deb4f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/IL7532413535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b0edd9ca8647b1c735cf3d9a719be8682a34d60ebc54f1f1712c28fe64649c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/IL7532413540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f8ddc50e04b12f8759e86ec92c9ec98301563cd947c7e4f22d294d764e6786. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/IL1042404005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bd1f27dce5f9a9f1e76423d09999c3472559dc0092dd7d7d468b2f37d7e7ad. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/IL1042002502.