Fundacja Dominikański Ośrodek Liturgiczny
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c438b8452e61f8e0344278938af28c9c65654bc098bf30d03881998ec53d35. 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/d03323f5-ec9d-4d84-9f88-215a99ea4c26.json and https://artists.proofprofile.net/proofs/artist/d03323f5-ec9d-4d84-9f88-215a99ea4c26.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb190d165d958f5d93cb77fe84309e8247d05d169ecce4f968bd87a4daea0c789. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/PLL971600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e1007bdb2baa702d734aa73fbd19f36d4dec8bf9cf7adc25ffe9072de45669. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/PLL971600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9158ef74b49df5281c146943439cfa2d362190bd1ab7ee23e24ff5c0b4ea3a46. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:11:44Z), 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/PLL971600014.
Chrześcijanie klaszczcie w dłonie - Na Zmartwychwstanie Pańskie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7da762b3a32a1bba225c3cd0b0a3245195bb8c7bf3768a3e654eb0ae2b266d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/PLL971600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0609c32d5fa1fcb2cb414582d01db0f00aeb99bbebc734fd94e60feaaa002c72. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/PLL971600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc955c5626fed9acc906259f65065992a6ed18bf606f88faae16ab3ae5f1638. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:37:11Z), 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/PLL972000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5407f58e9cdde04dc4ecdd56ee68f703699edc39dd494027528c6839fb00079d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/PLL972000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226828a770579a4d090a038fc02c32b06447af0257209d87a26d92740bfc373b. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:31:11Z), 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/PLL972000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b9b42a0d924ff3bf1ed66f8dde4363507cf91f212b227c742a79a046847927. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:15Z), 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/PLL972000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6839bcee68e94f154b4c51535d49c407b16b7958936854113cbfc7f0b77e1885. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PLL972000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe10e6cf216c431beabb7475b46f4e4ccc6972268ca0e905a0e1fc96506010eb. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:42:37Z), 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/PLL972000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe276b5a19e5a3412a766e8a64848fe4f443aa38e1d0f82d244ede4c040edf1a6. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/PLL972000037.
Akatyst ku czci Zmartwychwstania Pańskiego
Nowe brzmienie Gorzkich żali, część druga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a3fd92b9e99d3dacbbe18d3beab158b7364103d8f05c85640a50f177496ed1. 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/PLL972500001.