Igor may refer to: Igor (given name), an East Slavic given name and a list of people with the name Arts, entertainment, and media Igor (character), a stock character Igors (Discworld), a fictional
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 0xd16df807526121f21d1f8889afcdc0adb35796ff32f0a397fd0b743edcdb4fb9. 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/39882876-bb1c-403f-b05e-754da1a0ce42.json and https://artists.proofprofile.net/proofs/artist/39882876-bb1c-403f-b05e-754da1a0ce42.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 0xd3717442f47b0b0aa7a5efcc0ddaf1d790499e24054534378bdfc06a96823959. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZGLS1959374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b15bb1aac89ff8111c66869d7d3b8541bc871f17a8e353fac7b105a0e65d44c. 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/QZGLM1958614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52b6d14c8dd298614f60b82eb2ca0383b7dd1cc392c8b896a6a9e9f3a76d423. 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/QZGLM1958615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043c79134bb4d41d0f53e5980820e3fa2026daa21b20d065f541d1c2bdbe2e9c. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZGLM1958617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb49072988668a93fa6d02a0941f5a32438da8a2301681a2a663f455375704f. 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/QZGLM1958618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94f5a306672c400c9a4b6d7d2a2d441d440f5788ec2edda95cc2f02b4a00b41. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZ5AB2099444.
Cartas (feat.Luccas Carlos) (feat.Paiva Prod)
Cartas (feat. Luccas Carlos) (feat. Paiva Prod)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9e23361470e07f0bb581b52673906ea3158a63fa7db9aeb332deb18f8e07d9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXIH82000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e44480e7198b0514291307436b6cc5e8932f6bbe912475bb23d396af4583aa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCD592100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb1645db50d4ac0585247d234cb2855f41475a0b296a95679485b419b6a0fdf. 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/BCD592100075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ddc28829f096e3cd3e43e5120b692324b7b120744a706f39db6c03e3da40ce. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCD592100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe54c3c113c2e72975e3cb21808adca109c066efa9f02d52ce53dd55d8e62fa2. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/BCD592100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b91c4718e1bca51a76dec634cecaa0e11cd2142fd42de8a467a38c65f26c76. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCD592200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a77b275ce1d448e79972c81a64f245548b6705bf2b8fa30bb8be3c58e702a29. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCD592300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cc85a194858403441477dad3767b365ee8789eab12d9b0c71b9f6e6a413e0b. 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/BCD592400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9f6334661996df357162816482da4957d29d63af46a4be87eba8ccb8864b68. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BCD592400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13584619d63b8ec8803697a0cc041fc8e4a229eab078ae53bef62a32158ae9f3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHZ51965694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a1235e55e4974a3ffecfc5998db3b79f93cdd1cb414bc70ccf1dea9aaba6cb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRUM72300540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42debccc0e5384618c9d15d1d5c0eddd554cdd800bffe12c4db1d762c0329aae. 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/CZA232200461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf427fd5e4b4dd769d791d73a81d724f5e3e5ba7e62b5d5e515ed1fd9a9e42d7a. 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/QZHZ41957404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4898a2278b0db82fa31cf7abfccc2c0bc656987eeb0c047088dec6c11043ab91. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCD592100019.