Orkiestra Symfoniczna Filharmonii w Szczecinie
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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 0x56c4c44fa83bc892b642f03b3c2f0e675d887c65e427b66edbd6bf0311ce81aa. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d23e83f-15b3-48e9-a6ac-5dbdafec4bfc.json and https://artists.proofprofile.net/proofs/artist/3d23e83f-15b3-48e9-a6ac-5dbdafec4bfc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pamietam ciche, jasne, zlote dnie, Op. 1 No. 5
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 0xf7463fe4528c2bb905bff84d8ca2690922d3e975e42fbe78b0b50d9a2dcf98f3. 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/PLW052001001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf473b9904d14b044ab4b8db850addd718f8b69f8c2edf4d8035d7e5ed7d1197. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PLW052001007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19f6080591aee521e3da19e64febb9a09d34ab0b295f2e0d2a6224b131e45bc. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/PLW052001002.
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
Na spokojnem, ciemnem morzu, Op. 3 No. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc1190d1ccd1347f2c1d5d39ec7a2a6cfa36c15ce7ceb9fd03cc69759275f92. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/PLW052001012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6797a7ca9c6aa2ad2a40d79f105d6aefae5e2d0ed93e06a1b97e9d0239ce51f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/PLW052001017.
Mieczysław Karłowicz. Poematy Symfoniczne
Mieczysław Karłowicz - Poematy Symfoniczne vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6543f931471e433bf84f0618605575518cc2a37b01c8f0d7d6e442bb36b624bb. 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/PL98H2305003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de7f8cff9684f3479f80e2942bed637a21b561dc7d486c2ac618d0a9d79606d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PL98H2305007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8fe4b320901b0268c90be69d85bcbb624a8119ad142ebba70b9c147ecac998. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/PL98H2305001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e658b89f58bf466fa3d1a9b34afa7f9abe2af7b468e106ed75eb5ea59795a2d. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/PL98H2305002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fb7e55d714865f9e2669e67b89c21d128a77664c4231ee5f34f4e3bf59e431. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/PL98H2305004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02aeadb1f7d503d10d1c5f440538d8998858a5af04b3c8ed43faebe72e8f0fa. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/PL98H2305005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef43422586df63b7e75556aab5eb8dbc7152c20ea44500285e416f35b5ff907. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/PL98H2305006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba40450cb3630c4c41afa9239df55766f4c9dfd6a138304296a4a2ffed49064e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PLW052302501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecad93bc6e91782121e45d74827f4725c00bafc977a7267cae888362d937e2f7. 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/PLW052302503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb74f2296cd7ab8e82ba237ca1a36161d1e17cc19415c043f7830f60819abffd. 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/PLW052302506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5a3768cb7cdc7119afd60be5abb560cc6e291087b0837e015ada6bee3d61d9. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/PLW052302502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ac277a41673af0195cefa09dddf612ed4d9af48f4eef951d4dcaa0e6ee3de9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/PLW052302504.
Coincidence - Part 3 - Love Unconditional
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2896738c400d2cb2bd1924c28a9df709e8fb732503659d25a2dc2f2560fd5213. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/PLW052302505.
Coincidence - Part 5 - Confluence Of The Minds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1daf13cca4cfc5626a743e9fa4e42356e2d9285236242ce89c4a50bc314d1b8f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/PLW052302507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f046360566ef0eb8bf22d191f583488b317c1fe90687f3ecaf366b4c120fb8. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/PLW052302508.
Coincidence - Part 7 - Finale (The Consequence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2184774bc55bcf7b157b0f0fe492d651751865a3cfff0971ae72b4b931b5d6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/PLW052302509.
Międzynarodowy Konkurs Kompozytorski im. Mieczysława Karłowicza