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 0x5508c186ebaf9ba21dd15de868cb1856e2db0c90d8c1fdb71bb453f0c0798125. 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/06df1f13-ad43-4444-ab39-7da56ac7d46c.json and https://artists.proofprofile.net/proofs/artist/06df1f13-ad43-4444-ab39-7da56ac7d46c.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 0xaa1778e8aefedec688d5520eea69b0690280e7fb55a7726ec3ffa88ac1e4611d. 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/PLUM72100298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f665f61894e0dc8d2ee8a2c18799965f025f5c1526e4f085e004455a5c0828. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/PL13M2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa506e4c078badfb54297f20e1053b0716b81217dcaa81b73b5ab4cee77cde4f0. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/PLUM72100675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca5273c1c5bf625e08adf74c596e2138206f0736d9420fff78a933e77ce28fb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PLUM72200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c709c3e4b71627890fd261270b306a4dda52217b9b7131286c366e8c5a27225. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/PLUM72100448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544ffb8023a66f6454bafe1edfaeb654a7cef9b843a96a2ed1c9c87169817c60. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/PLUM72200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594a924e27f81c6bbeab1654a882f120e8d495464386dd116ef65e03a8486b09. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/PLUM72200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcf70bebfd1259cd484e75b2ae4cf93e7d6921e497db42db58c7f7ab0b1a1e0. 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/PLUM72100844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6927b0b60e5958a0d5bc7e18a00ebc0d4d991653ccfa03b205cffff05f0f0f. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/PLUM72200053.
Sto lat (Live w Ruinach Teatru Victoria)
Głuchy Telefon (Live w Ruinach Teatru Victoria)
Barbórka (Live w Ruinach Teatru Victoria)
Pociągi Towarowe (Live w Ruinach Teatru Victoria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f68bc168c0960d9586bb07f3be1d74cdeea2069e904df4b70c2d70beeaf5edc. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/PLUM72400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd4b653d8ecf92257ae09bc3fcdcb873114095a7eb37d30c92fc15d1865042d. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/PL13M2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520f3f52ad16de78137bec998e63250e52deba5371e30f87585c24b5482c51fe. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/PL13M2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb926dd506c4e230351177a5002c20748757197e3aca7e42a10475bbb31afa2b3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PL13M2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692a8db6e3e9df6fcd6b0cfd1c88cba56a8e2a7c722d386c79efb6f00c706943. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PL13M2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65521a751a73fa807b2a918fb6262d28618636b02a6c2c033062483b18a2ebec. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/PL13M2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2f20b16a2f2ae5bb0ad8befc888db29bf67a7d7fcc7ae1d2bc417f4bd7a0f2. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/PL13M2400008.
Akceptacja rzeczywistości wiąże się z konsekwencjami
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4e60000c101018134de08283806891ab5177ab096746bf54a998c459781360. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/PL13M2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33306f895c6154097cb47ad0df954ff2c7f081385412bf84d15ca13a7103a559. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/PL13M2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a407eb9d965cd986c6cff33dfc8ea3850e8d8e90048cf8dd39e9df6e4b0811. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/PL13M2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2375510746bb97935ff3687cee1fa5b069fd1f17020d154c3e17001b1bf73816. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/PL13M2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77ffa67c973b0da7e7351454b09b13d5d428f92495f011f2fa9ae1e9a155cc0. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/PL13M2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7571035601e8b040877432bf5dab2bc133090f3e0171ce79e38d7a06ed5199. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/PL13M2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b264b130073507456233939ff0f67be038847cbca270e888b3121a652fa5a32. 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/PL13M2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d437e40bf3304c52d710845d24fa3045b359a48975fc5411dadcf041eed468. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/PL13M2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842b3edb8846caaa6c0294d638c591e87a37486810ef51c671f58f1955b10554. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/PL13M2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f25d34db266acb098674b0a0737143481ff0a21ee76a30ac1f48cae080b49d6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PL13M2500008.