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 0x4174634e54faf7c5aacf65459fcb32059561cae111599b842e72c11a8de36b3f. 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/355eb5ba-7fd7-44ad-b7b6-76cf68221201.json and https://artists.proofprofile.net/proofs/artist/355eb5ba-7fd7-44ad-b7b6-76cf68221201.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Droga Peruana / CSB Deixando a Garotinha Sã
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 0x2cfcab7bf608d315272c9612b125179e4845ea269877b360fcfd497ccb07d984. 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/GXD7V2366875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b931db13a48af1048038f71a5e6eb93ff365b754227d8d014fbd011f3b9ade3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GXD7V2346276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5684969cfd8dea12297b77c08eadd0a66c7240658bb4222f8a0dc6fa555563. 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/GXD7V2348095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64d353cde31b1834a87cdd9bd68b9d2285e48b8e57afe5f89fd5b0350601c8d. 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/GXBAV2254036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed392aa38d3fb68b1e2b694d1316de9e7f8708adfa99a4a134d92b39989ffa1b. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/GXBAV2254035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940a598b3856651595c578e9c3b8335d28d7237211f4b4d7c6aff5424aea44f7. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/GXBAV2254039.
Depressão Virou Meu Amigo / Amanhã Tem Aula
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce52d8f09f6e5ee8a0a9378c9f3815b17ea0742b7517e831e3dbd73fca470d2. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:26:15Z), 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/GXBAV2254040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5068ad8be83582d298190139a476878c146ff125e3fcee81d561675e5da5531d. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GXBAV2254041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d2ef5c7bb9b794f765b9a9d36ea2bad1ac50e9ff941442aef54e0015a24d4d. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GXD7V2453569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12343e75052317c6aeaf94bd713eddbdb4c94e9e57d0c9c90812f6631fb6b69e. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:31:32Z), 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/AEA3A2413575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac789fe21e88430a7fa56fcaed269edbcea4a41f1b93b18c51541b3197af0d2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AEA3A2413577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc609e3188562afc8b806f82e9e958d550c1a1bfae9b8c570fe5ac08c5a7451fc. 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/AEA3A2413580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8887414ad273e9910f76e24a98603c4b1069c21a90eeb617961661e35ff644. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/AEA3A2413581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afccd190d2a8315346a49ab69f4d93dc880d4103a6c1913c7b4c2a0ae4ac2bd. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GXD7G2218093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cfeb431654e6513df5e65f10c83a9865f063646fa60b2b724f93bfcda441ba. 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/GXD7G2222931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00d6517ef76ecb57a25e91135efaad16b21bc5de9ca76480d89c47350f5dbfc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:40:33Z), 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/QZZ7R2491803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46974d146e5ee6203f8b57297fa9a17af83ced8270d9a447a851f75d924d2a5e. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZZ7R2491804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd1203451ecdb589d1a3b19dc244ca87512f76875bc71e93896b149b255e2ea. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:11:33Z), 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/QZZ7R2491805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec49cf21b870191af488c00b5431e96e7e90ebd2d2ba6e3360a88d5a229251a. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/GXBAV2554868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754902558bdcc2082fdaa5371742b8137ad5849dbe64eea8b9ba211f485ce75a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/SGW502535338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb14c3c2434197bc7247228458c1034e7922c8419f3c2d6a81215f8b3ecdeaa4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SGW502569490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52df0eaaba5e70b5ef34fcd6818e45ff77c1308244224702d321283e6ef6d22. 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/SGW502589247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f479c0051798c5385ca6cd4ee97bfa724e90edf7f7ff98e9b8eaf0953adfa6. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/SGW502562269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8960444112bc44f54c78e479052779d714127f7c28f081f4f9d49e19ac6db296. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZTV32594760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237f256d8c2ba2c7951c1a708d6ae2d6f6b116fe0ec96a0bce27e7b8aec9d2ed. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:00:33Z), 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/QZWDE2508352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e21c45e7ed7c90c7f1d700c5f6cc93b33a5069d18ba61354710f163d3c8fcbb. 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/QZWDE2507136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d6a94d40dd2788bc0ac27f732918912234638bae968a98d5080cfe52e0c78d. 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/QZWDE2507138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b945a5f8f4cf49fdb41ed96897b3abe7120c55b27f9f013f6232a3c37b4c39. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:36:42Z), 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/QZWDE2507139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacfab5a3ffca2a509f14d053e6e8fd85767d71093bd2e8905300be3eb784a42. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/QT5M42518961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf457ff33c1a6290f712cb68ade6352dcd9fbbee6e98c1032e3d00cfb0c789c60. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QT5M42505613.