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 0x604f6aa34da29b6c44a607ca2603d6e80697d8f2775edd18afe21436d0711d08. 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/2f34db7c-1ce1-47f6-b958-5d6057e279e7.json and https://artists.proofprofile.net/proofs/artist/2f34db7c-1ce1-47f6-b958-5d6057e279e7.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 0xe9b940a0bc58310a8b84257a66d3a4f5b0dde09a13aad455b552658a2a0392f0. 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/ROGRA2400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdec04f40f8f89cffd7966ba703e92b95b155dacd70f94dd7ba8c3216f888f20. 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/ROGRA2400526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd6f5084ec225795085412df27a0a6e8e8279b107bf37ea059e900335ac4365. 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/ROGRA2400477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a0ded6561bd618d1b26cab5897351cc53fdcdd7a7c18fc0efffaa5e6980159. 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/ROGRA2400457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bc2c9b399f1bb9dc732ba183d0adabe6eeadae1738ee335cf60b203f572b97. 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/ROGRA2400416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77b34f7e046bccc258d2529251c5971d8fcf7cf06c131e4b997e80a298b850c. 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/ROGRA2400385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc22811f5b90d2651031432268db2676c0d89e71565d12d599a8ab7ef6a48d5. 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/ROGRA2400339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcc33b31ff6585063d619b73ae48a1a47c6da6de416f597e8f48d03b9c901ee. 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/ROGRA2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d2a5b1d7f59ae9a9600485e5af8c72cd154a549957f3f83b41001be648294b. 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/ROGRA2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bab14980c72a7d9430dd1fe00efa422cb78e099b3d8bc69239363341946877. 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/ROGRA2400019.
Colinde de suflet (Live Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbff34db2b8382e9eb3ec1ec429bdb954d3134fd851e9066525a6d8b782c82d. 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/ROGRA2300638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe6ca3ab21cc9ec1a60fbcf54336b6b72d2c85b8ba7ffd985120b1b73a8ab0d. 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/ROGRA2300502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7eb569b97469f8ba03e74db7b0de75c72e9fb02b898151384730cbb628ae001. 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/ROGRA2300398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe308762dbd0ac926d430697ee862a27a1777a608294fdb9361c9e04b7dbdba54. 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/FRS182153756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce937de74f2335a834583606992199a4056041c995fdae2533d103d2150bb606. 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/ROGRA2400546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680d7d1fe4adb0b71ef8ac1e9e43fe8929164d7a4e7c0f66d3ba6c60f929e906. 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/ROGRA2500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9eabde7f900104f4ecc4d13e475be538a0d31f23307827d435736ec4d5260c. 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/ROGRA2500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8b60517503a32ba428c369510e410a62819a4020c3c433ac12b88711157cdc. 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/ROGRA2400789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe968c6ae2f2eedbe86d517b016079575e5071d1eed5f37746d0b62eb11d96adb. 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/ROGRA2400778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8872c337a8f5b645b6625aa1c377b7bb451918d84f9f46ff5d43949b66de975. 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/ROGRA2400685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e34c13367ce1c3b606a5efe7d5a0eabc9c0026126555a648e9a0c9634026cd2. 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/ROGRA2500285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a12ba605423b9db4fab6445a29a4f2be5c66b2fd038f41ba3751f8cf82682b. 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/ROGRA2500356.