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 0x95e315acf7b786aa327dd714c30d0cb7a963889e370adf634570df3399ab928d. 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/4d4d1d82-ccdb-4a53-8a4b-8f09361a4e58.json and https://artists.proofprofile.net/proofs/artist/4d4d1d82-ccdb-4a53-8a4b-8f09361a4e58.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 0x45ab51e10c6151eb0ab8506f104fd1f335d5f569fd043e7061a018f606e5cc45. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:57:42Z), 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/QZRP42201546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac17a57928c2137f773d6028da94f5c729c562ef34c3d204bb6075a0120c9c3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZRP42201547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b33b80670c2066424321a4152ad1506ecbb7023076666d86bbde64e81c5123. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZRP42201548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b048cb885e029aa6a075c84771196dcbe435cea38164429a8d48b6f3b29569e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZRP42201549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5292358c55ce92641c18dbe98075b4c2e24b76674a531683fab4674f05951676. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZRP42201550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9824e0066d27e9976a6ab12af8bd33ed594daf00c6ab15d23313ac34b8dd89e6. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZRP42201551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5ab9bf711dd7e7ca6647be0715c9dae40155220a2e0ad96d3025576b615590. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZRP42201552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266172262d7866e795a04449b651b42d8b566d8c735ca18c12c21e3cf02f8a89. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZRP42201553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2564cd2d48a3526a019d9daec54e82703817867ee5cccfe35775860337443ef3. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZRP42201554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54a43ed545657ddcf33b7647e1c003e979a91fa972764b746f38edba8acd868. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZRP42201555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76437342fc29571068c9e93788ff9e8a0c05328a3921aa855c88c424d20f73e6. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:53:53Z), 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/QZRP42201557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33819182dd0f00914147f30668f62cc5eea3bd6b230c78221c5b8cd2c59ddbc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZRP42201558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b7f0ffa43acd271dbfb1ac2ddf36a5a30563ed7a9bcabcb104d357575bc40d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZRP42201559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47db86655d3ccf64938a281833e206a739599c6479006d560f55dd2683d6498d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZRP42201560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5272b2bd8e468bb8531bf0f366978c8a7fab2fdb98f142c3bbda98411ad32b9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZRP42201561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d92a6a9bbd78d5c6ed8689166c0b43489b53ab885328fc23a6ece20e8e6a55. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZRP42201562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d4dcaf6f0f49c7a9483453e0296200c31e8697453ac9d09883a700472fa7fc. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:21:51Z), 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/QZRP42201563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fb98da9e33608bf51e2c8fb7b8ee54ee8485194c141902cada0f6c245557a6. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:38:51Z), 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/QZRP42201564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a643256568efc7de6478bc67ebab938f324242c95a6ea8d6b9d968c2042405. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZRP52270271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73020bfee6b20a8fb65cf8d466a538d47affca48a13c22b2f488a2c530702ff2. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZRP52270272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ae6ea943037424198f2a7b0c169f0dae589435ca496d852df8f0442f8b6eb0. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:22:31Z), 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/QZRP52270273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f35e49c1151a87cef594564012e4492b0813ccdb53558ca652d84ba2e70bc4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZRP52270274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7359dcfe4ffedd330bf8a57a7562290f2aeb874bfb69fcbb9149400fe08809dc. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZNWZ2237600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0869d92d5cea6519f1ebe9c1d630531958ddf62e056b29deb99fbc9bd2e6d2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWZ2237602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c07e1d886d0d90fac30a44980d1c10e034d49df567434c75d77dd1a89bbf740. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWZ2237603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99a1ba3ceb2624e82dea06dc88b55719c0e2a51f8f450d33bb36e7720cfc292. 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/QZNWZ2237604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c0ea9340182e193bd126664a1bbfe9869f622180d8dd4e4fd3de3607d9cfaa. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWZ2237606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938d3bf25e15ae6877dcf3b658b3ce87a07c72656ff5b3dd4b947b48c381ca24. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZNWZ2237607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e14cbd4276d2a29d3069ea13e8ea32d497c6d2b90c5e47848dd60574f2f3449. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWZ2237609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd730a611fa60a12a8071bead4a158556f32c7d57655580909c0abee9821a85f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNWZ2237611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce91e58ffde84d63c7292be21ee9234c79381468275f0d3e4da9ea9ce848e039. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:22:08Z), 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/QZNWZ2237613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f66e8593cad649af65c7508ae093113a6695fd732f7e8232c074ace743ff89e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZNWZ2237615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7689065ec8b3df6b581094b82d8ae0851a1fa5888a7263dfc0523fe73c5c3566. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:45:58Z), 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/QZNWZ2237616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c94ea050b11c48ac0f0d7c575282c5fd35e7d5497e99784bd611ff52addee8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWZ2237617.
L a l k a / Teatr im. Wandy Siemaszkowej w Rzeszowie 2024
Nożykiem tniesz wilkinę (15th anniversary version)