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 0xd6dd31044d543b980de13f6948f354c3601380f2144bbd790062097a9bad3d7b. 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/881d0d3e-798a-41e0-b892-9116728b46a8.json and https://artists.proofprofile.net/proofs/artist/881d0d3e-798a-41e0-b892-9116728b46a8.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 0x04858b1f34415791bc95620eecc4e4e41eb3316139467ae229d320383c161086. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXE8N2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820b5d7d70b45f89e47904f9cdb1e8d90e4666a37025f7d4a477b0233ff661c6. 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/BXE8N2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1239a0b9d6ccd980151b9efac90da31d5936200d5dfff62f4ed2d5175d5334. 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/BXE8N2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb07485405b76d77f5f5669817434dfe8db7f790ffafa889bfb57010dfbc40c. 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/BXE8N2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c32e303aeaabc342514aed78bbbe0649327791ef3965997c1bf4beca5fe83c. 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/BXE8N2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd784a6910e269ebaef17977db61d7f7846213f34205e54aefa61f785bed09682. 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/BXE8N2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9076b1a685a243623ab52776224b638fec5eb80ed1112237b79bd6756c654b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/BXE8N2000004.
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 0x52c64f7ec38165323b8b16521cb7f879459b51a3a08d55cafdda9e553881eb7d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZW9M2266805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6dae6c378b67bf665d13be45ee6683b7b76ffc6aa3cfdd04129d417d5c3bdb. 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/QZW9M2266806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dd544b1190daf0d0e671389f32c692b3cca848a5dfa80ce2c6a2d8f8add316. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZW9M2266807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934a257764e3e279241a2016e18fb1e907dececef04dcd6acf641f7806e65019. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZW9M2266809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c78a5199bd0b5227b1183605a07aa305186b61e9137bb0c32655c9a68de8900. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZW9M2266810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd50e0f34b9359078f03cf8cbff39f42ebfed5d655b67fb931aa5a1a1068c3db. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZW9M2266811.
Liga da Justiça [ Mulher Maravilha / Foge Foge Com Superman ]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca020278c76a23a23b54b30c1e5572b77b6717b69deee87be1f34890f1f7d4fe. 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/QZW9M2266815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dee0bc27a141949e1896114a491c41da4fef24f7f6599e2d1b553384093ca40. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QZW9M2266802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ebfeddad1860e077d3bc2905eae0d4338fdb8868e21a49342aa6d5ae5ddc21. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZW9M2266803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ddb8a90a6fba646a29efa0de5d736d2c87867b55480c61f9ba6fa403a0edb9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZW9M2266804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9861769d0d516ce26042c9b850a5dc05bc118df1fcb44035e5beb7f212d652. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZW9M2266808.
A Revolta / Tá Toda Meladinha [Sorvete] / Abcedário da Alegria / Levanta a Garrafa de Whisky [Pisca] / Toma Neném Toma Gagau / Vizinho Conspirão / Bota na Geral
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5562a14138d8aa4fdb074d2c10448f7bbed7c2d3d3fe6be244b110bd433b37. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/QZW9M2266812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b488e7d82fba1a7581b301934a7d94c1ec4f55a537b075bcfc6af5d77ad877. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZW9M2266813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942c3e2fb35f8859ab8ea11c3927104e690c26d6d18dd5e6ee93dccec5536b40. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZW9M2266814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ea93ad92f2e228cfd60f4396926be306175d80284ed0255e9841d9efb7dbcf. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZW9M2266816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630ab4c99c65c221e175e16561bd219b9b047c4b843468ce571de518d2f94f16. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZW9M2266817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63434f57690f011136e81dbbf1cfce89912672fa7c5f2c55b6b7cccb056835a4. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZW9M2266818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47157388c2c2b2bc0e9511f32819fbcd18f4fff78d5b979ee59d041c1d7878b1. 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/QZGLS2473592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7058ff463b79131e0ea3f7548db3ffe9149afdd53e4b062cf09330febc4ac3. 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/BCRIZ2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51edad6ab142f4c05141a33b5c417c871edcd39a4dc298dec642769a374b4b17. 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/BXE8N2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ac059e4ff2ec5c86b57765ea2927136034eb9e55772f281671176f715e79e8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZTPX2485901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5850550628c28f7d7ead2a5e26800723a292415b08678dbfa6dbe417ebb451f6. 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/BXE8N2400001.