1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xdba6a5f6656b725f1389f94aac4d09e701538f2f8034cc318095f5ddf1c23444. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7b552fb-5767-4452-8400-63c548410b5d.json and https://artists.proofprofile.net/proofs/artist/a7b552fb-5767-4452-8400-63c548410b5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jeszcze jeszcze (feat. Muzyka Końca Lata)
Taką wodą być (feat. Nathalie and the Loners)
Jeśli nie rozjadą nas czołgi (feat. Naiv)
Nie Będziem Płakać (Gościnnie: Marcelina)
{"copyright_id":"0x18a82f22631b786bf4b9862e47aef65f324feeee13cb01677004b87cc0c5f54a","isrc":"PLI365824420","name":"Lista życzeń","registered_at":"2026-06-29T10:34:10Z","spotify_id":"7rCJfAsCk9RTGyMigqRIvg","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a82f22631b786bf4b9862e47aef65f324feeee13cb01677004b87cc0c5f54a. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7rCJfAsCk9RTGyMigqRIvg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7rCJfAsCk9RTGyMigqRIvg.
{"copyright_id":"0xe2661162d6e367a1386f6479f1cea85e076ba3c67dd645a7bd3d492d29ee1aaa","isrc":"PLI365824470","name":"Są momenty takie","registered_at":"2026-06-29T10:33:58Z","spotify_id":"6RndApzfmIXOJBKRDrocAH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2661162d6e367a1386f6479f1cea85e076ba3c67dd645a7bd3d492d29ee1aaa. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6RndApzfmIXOJBKRDrocAH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6RndApzfmIXOJBKRDrocAH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe1b4558dbb63a27bf1dc9cf91a6ab8159c2d280ed7cf1e5c87c6f23f8aea90. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7veRtFjv3lsxi0yIgePzE1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7veRtFjv3lsxi0yIgePzE1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf143f60eed62fc5cb9606d9c42929732e5f445f9a5a6b20876c97faaf523aa5f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3nnrJEG2T2gvMbyJMVYKdT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3nnrJEG2T2gvMbyJMVYKdT.
{"copyright_id":"0xeea4ff598eeae50241bcdd2046d64ffe5da1a9daca684bb082862f68e14f19ff","isrc":"PLB822100066","name":"Bez Cienia","registered_at":"2026-06-21T18:38:30Z","spotify_id":"1tdXPkHyGwmZFUFKXtNtiC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea4ff598eeae50241bcdd2046d64ffe5da1a9daca684bb082862f68e14f19ff. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1tdXPkHyGwmZFUFKXtNtiC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1tdXPkHyGwmZFUFKXtNtiC.
{"copyright_id":"0x2207ad649abc35bd9bd9eb021a5ab76fef04138cdd8ea2f330fb3227da76158e","isrc":"PLB822100061","name":"Do rana przyłóż","registered_at":"2026-06-08T22:28:09Z","spotify_id":"35822MH5zr5GpnRUgdFrYD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2207ad649abc35bd9bd9eb021a5ab76fef04138cdd8ea2f330fb3227da76158e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/35822MH5zr5GpnRUgdFrYD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/35822MH5zr5GpnRUgdFrYD.
{"copyright_id":"0xe6d1eb69a55faa9d06f5270d55c61bc161b6f6118e984a769d0bae4c49da74e7","isrc":"PLB822100062","name":"Już mi lżej","registered_at":"2026-06-21T07:58:50Z","spotify_id":"2NCnEcvyJay3grTmyNaYnl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d1eb69a55faa9d06f5270d55c61bc161b6f6118e984a769d0bae4c49da74e7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2NCnEcvyJay3grTmyNaYnl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2NCnEcvyJay3grTmyNaYnl.
Stąpając po niepewnym gruncie - Pidżama Porno cover
{"copyright_id":"0x2207ad649abc35bd9bd9eb021a5ab76fef04138cdd8ea2f330fb3227da76158e","isrc":"PLB822100061","name":"Do rana przyłóż","registered_at":"2026-06-08T22:28:09Z","spotify_id":"2OEkPeVUl24RPajhIkZ7b9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2207ad649abc35bd9bd9eb021a5ab76fef04138cdd8ea2f330fb3227da76158e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2OEkPeVUl24RPajhIkZ7b9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2OEkPeVUl24RPajhIkZ7b9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d1eb69a55faa9d06f5270d55c61bc161b6f6118e984a769d0bae4c49da74e7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7FHuD5J7DZG4PRIppA1jLg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7FHuD5J7DZG4PRIppA1jLg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135ca3a5ca1e0f67dc83577131a4e1ac6b70069c205ea3dd1693199b91648a68. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4vS4ABw7v3Tf7eftWKODRD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4vS4ABw7v3Tf7eftWKODRD.
Stąpając po niepewnym gruncie (Pidżama Porno cover)
{"copyright_id":"0xb65fca6fa44af462a2b3d8d297af17c23a68c123be601814f3c2063b445acc31","isrc":"PLB822100064","name":"Stąpając po niepewnym gruncie (Pidżama Porno cover)","registered_at":"2026-06-18T19:42:08Z","spotify_id":"6CLEaXzDUgR6gFtCznRLDV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65fca6fa44af462a2b3d8d297af17c23a68c123be601814f3c2063b445acc31. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6CLEaXzDUgR6gFtCznRLDV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6CLEaXzDUgR6gFtCznRLDV.
{"copyright_id":"0xc5a84be169da6cc2227528713c177bd42acdcfff1d7f392d9bf0884e31bb211c","isrc":"PLB822100065","name":"Nasza jest noc (feat. AbradAb)","registered_at":"2026-06-23T12:43:58Z","spotify_id":"62aZarwyR5lTNPLLwTDXlZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a84be169da6cc2227528713c177bd42acdcfff1d7f392d9bf0884e31bb211c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/62aZarwyR5lTNPLLwTDXlZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/62aZarwyR5lTNPLLwTDXlZ.
{"copyright_id":"0xf143f60eed62fc5cb9606d9c42929732e5f445f9a5a6b20876c97faaf523aa5f","isrc":"PLB821900148","name":"Zmęczony (prod. L. Kamiński)","registered_at":"2026-06-24T19:02:10Z","spotify_id":"1x4W6YVfOZoRjsWVmMNR0z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf143f60eed62fc5cb9606d9c42929732e5f445f9a5a6b20876c97faaf523aa5f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1x4W6YVfOZoRjsWVmMNR0z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1x4W6YVfOZoRjsWVmMNR0z.
{"copyright_id":"0xeea4ff598eeae50241bcdd2046d64ffe5da1a9daca684bb082862f68e14f19ff","isrc":"PLB822100066","name":"Bez cienia","registered_at":"2026-06-21T18:38:30Z","spotify_id":"4bK598NgbxKt05Bun2TXqj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea4ff598eeae50241bcdd2046d64ffe5da1a9daca684bb082862f68e14f19ff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4bK598NgbxKt05Bun2TXqj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4bK598NgbxKt05Bun2TXqj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa476e8db0da0b2bee56b392a61457f42f13787856246e827ca7a7ca4d16daa04. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7cyqBxnSOb9SsoyeWOGhwV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7cyqBxnSOb9SsoyeWOGhwV.
{"copyright_id":"0x822d83e98053039688ca8daaf9e4e202ae3ce217b77e38076b03adc5b4e32f1b","isrc":"PLB822100068","name":"Długa droga w dół 20yrs","registered_at":"2026-06-25T10:35:06Z","spotify_id":"5pdYornniLszhF8YXLavzm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822d83e98053039688ca8daaf9e4e202ae3ce217b77e38076b03adc5b4e32f1b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5pdYornniLszhF8YXLavzm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5pdYornniLszhF8YXLavzm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e09c7f6f672b0c5cd89275ea4ee852ff15c6c69f6772b50793085752715f3d2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7JAa2hm6nwSI07xVBNdB63.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JAa2hm6nwSI07xVBNdB63.
{"copyright_id":"0xc635569f187f62dd1c61e1ac51c6bebe0391cfc63ad3bd51518271ff2157495d","isrc":"PLB822100070","name":"My się nie chcemy bić 20yrs","registered_at":"2026-06-25T10:34:58Z","spotify_id":"4Gp6uawfGU2VaNKBWkTCqA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc635569f187f62dd1c61e1ac51c6bebe0391cfc63ad3bd51518271ff2157495d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Gp6uawfGU2VaNKBWkTCqA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Gp6uawfGU2VaNKBWkTCqA.
{"copyright_id":"0x7f9bda03bcb4c6dfcb55a48402f43db1c2dcd575b1c8b34f2445cb01611cce51","isrc":"PLB822100073","name":"Zanim pójdę - Remix","registered_at":"2026-06-27T11:16:52Z","spotify_id":"0vBGDNYwTAEVzaGdv11StC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9bda03bcb4c6dfcb55a48402f43db1c2dcd575b1c8b34f2445cb01611cce51. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0vBGDNYwTAEVzaGdv11StC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0vBGDNYwTAEVzaGdv11StC.