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 0x9a441e8000af7b7487ea1c52031d9f887bc7b113a691d14844b5a89746f94343. 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/c698a84e-28f2-4d0b-91e8-1b740f8147d9.json and https://artists.proofprofile.net/proofs/artist/c698a84e-28f2-4d0b-91e8-1b740f8147d9.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 0x616e0076f0199674aaea8ede49e4a0dea167affe10601f3a13931c879f52dd0f. 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/US7VG1686762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f1362ec2142839ac0066cb5fbfe2707b6c21cc3e5b58ebe014271d15c8c98f. 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/US7VG1686770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7ef77f8637a5e3cae279ac777777ec75b40c45d21248417e1d84cb295fc503. 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/US7VG1686773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271ac782109420cd3703a10bdb26c7ac8342c1a6f9dec9adc9aac2f85c53939f. 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/QM4DW1895864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf82dd6e69af138025eda3c701ee1acab748d8ca0f5ebc9d8ff5f01db9fbcc10. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BXY8J2000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a279f4d081c116253704596fa803323b03187803396cc3727539fc3572e6a4. 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/BXY8J2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab62a565103ac73e0dbff3a12f016d6e9b567cf2a085c41016aa4c87dd2dddf. 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/BXY8J2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470c59598f43f339c0956952d7a53bc707a9e85922fafc27c97703015e958b13. 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/BXY8J2000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e01b67ef2c4a42313c2a0995bc82334ac5ff08026f345c1189fd1f9cf0b485c. 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/BXY8J2000051.
Perfeitamente Incorreto, Vol. 1 (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2da14525f45c0f1ca79b078d0a425976cd0b7a8830312d1580dcbe8a7df95b. 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/BXY8J2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ff571bcad0c43106b6f30c4188406ad02c617c88f28387eba331f0d8743ca2. 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/BXY8J2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165436e25954e2c950aea1d0763d6d4ef905e29569076473d59a541fd122d12f. 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/BXY8J2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bd79c19da80de471f99f71b4209acaf010bcd1145504738e05e56ecc640997. 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/BXY8J2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd742296da27cc7393f8daf01d659a89180ef47e124be749e5958ece83c2a715c. 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/BXY8J2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa094fcd8f2bddd50bbec00a60fdceb5437d4718a58823913565991091e2e3832. 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/BXY8J2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73edccf8b892df249d79626ba3b89c5a7d9712284414df7c14bb394baf98dfb. 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/BXY8J2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89d9231b464b395e07b7c31c13471d8ba9fd103a5a3b4851a70bc897cb9ab48. 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/BXY8J2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7e5ceefe52ce9067b21662a1c81cf5c8e943ca9df5ba673e42edea98d13761. 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/BXY8J2000002.
Making Plays At The Georgia State College
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3032e1f88c4eec6aa31e4cee68d63b8f5cf19f8f26a21c10e97b7801bd9af416. 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/BXY8J2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068666ea5e60b2a092e3a589fd7d2f203d968983f845deb15fbf932e66377243. 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/BXY8J2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734b41b5133a8213848c951b5510aad845cc1f089914ad72e1db35a64dabd383. 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/BXY8J2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84626c62d6195225855620ef57e9e2b16d4865f54d53458470fe37e9aba2899a. 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/BXY8J2300013.
O Que É Meu Ninguém Me Tira - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7995cb9cfd8a7df7b2f434822db60082ab10d82e7ab8820ab189cfec2c8c4413. 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/BXY8J2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b27d14cd9f763172224585699950e46b20214451f2eab979e99314624de904. 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/BXY8J2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1279419610512cc8dc965e359d428ae66ae4430f073040d977258577c12a0fb6. 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/BXY8J2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cff8bf66239ad60c4c2aa02946f71fc00191e2a3a6127eec96f168726cb23f. 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/BXY8J2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aaa59279a77202053583b99e23b22bb09c1bced4f4975c0181dca9662c7b8cc. 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/QZW9K2436368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bff92fd31e363ec7f1b4f5846d394271b74b31b4f2a47e4d3296586357d0453. 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/BXIV82428665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553d7b4c76a9ee8f04fa20f5c111108a5f9065efec50261b05e5c57eea11170f. 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/BXY8J2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6e588907f6227379ed9aa55586d15a6047b2e75cd45644b8e929d73f97d5dd. 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/BXY8J2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3de1fcbff1c1f67c61326370fbb216ddfac3199d5c2388e2c10814283c8e6f0. 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/BXY8J2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439ae7049abdbf3b7c80bd9b18d38b8a75defe098c6ca872683d1fc9e1b567fa. 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/BXY8J2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1f8812567772a270bce1a6299efc1e889d8c87131aef25d86743178f3f31a1. 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/BXY8J2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8299fbc44cc8fe3233544acfd67744793f0ade8981e8e9d5ef51f817da811d1e. 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/BKT7N2400005.