Maciej Malenczuk z zespolem Psychodancing
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 0xe523bcb9d55fe34dab44360e49c051e69c97b781892dc85a13297e50dd56b64b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8119a52f-f04d-4c0c-8a50-488149f96c6a.json and https://artists.proofprofile.net/proofs/artist/8119a52f-f04d-4c0c-8a50-488149f96c6a.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 0xd5b917ef5f67e9a14a9b073c70f857e7919155e77d35234714e436e5e23a357c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLD330900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81554f68cb6887cdc30483b7deb3fb4e87d8bb11e64521fe65a5b3f2612996f1. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:33:06Z), 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/PLD330900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6bded483d0498101f88e8d13b3035635b47979000020e3cce7449aff73566b. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/PLD330900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9660a86ea36d81dfe510f4083d2114f49e4ec17ac99180daa4eb46e8eea2617. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PLD330900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311ca63de52bf4ae0d5c6695a1cdf70aa33923e078f943b1806c2b4b658afa55. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PLD330900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ed8b34030ba53e5fbeba62df678896ab373827c0029e03f46c9f28ee68c18a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PLD330900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8911293d32d5060c8c2ea4a382b6137ff30cfb3db3c022acc7bc85f8ee8d28. 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/PLD330900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eac6dc22aa1fc3d0f0fa836b254ba8899dc27cfe0df612bef13417cf880914. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/PLD330900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139bd590c754b0d950059a8b4c27759441dc6710624f63b8a9502f2b7b30dfef. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/PLD330900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900dae2e3aaa42d1ed575acfd8efc7a32f5b6929ff6dfb2ffe609e45e56bbe5a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PLD330900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12782e94900f8cc2f9038af3c9b5df34ad54f6452fbbf718ce06208a1070d75. 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/PLD330900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6662c43a6305b10f4b6db068fa7851a00d7e2c925aef8329c122262ff75e0073. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/PLD330900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3641b8af15fd501935791118d88549d72c1b4c365866676785d3b12359a97624. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/PLD330900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4d865eb311a4b799fe4a4395215a952c61c800b49d924239bb68a0a5167983. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/PLD330900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aa273351756c87c65a1b7756ab4124cd3d8156e440bed95daf2aaa42bb7c20. 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/PLD330900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2576d120d287d862f96bbdd1de54c37240b0abf83337e60aeda17b4a493b975. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/PLD330900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103606a99f1d35310d1cda04e64edc0b7366f6b4bbcdf3523aa41f89d5da63cb. 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/PLD331200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0736fa277b1c74999830b6cc88995ce7bdc515fac8888789e7697ffb47bb0be3. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:21:38Z), 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/PLD331200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308a597f38fe8b4572ef1b2ee0117ef8433cd43f4e9e2c74e299d6de6436222e. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:56:09Z), 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/PLD331200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1080bfc81535b9b64640ae31e912fc2ff9f827409311338f161352db826902c7. 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/PLD331200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b70420a13b9d414334a33201d1a74a2d01d9e4404a27345d6cfccc00eefec83. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/PLD331200109.