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 0xcf16861ef99e8eec9a61a2784cd3332604783dbc15d09cd7a22661524a779ef1. 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/e5dc1f26-e630-414b-97d5-4ad848f05598.json and https://artists.proofprofile.net/proofs/artist/e5dc1f26-e630-414b-97d5-4ad848f05598.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 0x66346c7fd11833ddd00b6a3549c902e8dcd75133ecbaecab932c61121d552293. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZZ8A2376885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6b8331c0a7f86997e9d25b8fd02ffc328448572d84deaf2e13ba5f0349b640. 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/DGA082383648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0863a87c790b90f8b097662a01848dab209641818ed68626f1162524fa47201. 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/FRX872320229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde07546118a56809d3c2368c60cff8b47d4fd5847bb8908ebb7f177ccfe2169. 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/FR2X42316658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7460c1e16cb4c032db4eac8facfa8b24d2f6cd7e512fb16c0bbf5b6450436a86. 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/FR2X42316659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b152621a08e9ed88dd156048b6cb5a2d9e158bd305179e7812feccea5bf288d. 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/FR10S2268913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8209434d395692f13aecb6ecbfd227359d1267e1d761b4fb608736a659857fd2. 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/FR10S2241297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5587ed3094dab9fb56e330972e40531321c26d7f4058b0e13205f5214bb5fc0. 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/FRX282179878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3291868bc8f88b0abfdad8417b5d511d1e5a98e11b750d4382187a13eeb21b50. 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/FRX282146012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae017c4bcb76731208b787400cac2f1d17e2f7ff08b8d77874bc0ca4e7a97ca7. 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/FR96X2153939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea0bb955b6b72dbfe8cb05784818c226578b1c4b12792a1a9f382323d7113eb. 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/FR96X2111207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646a66ce805cbfd6c864df6fd4397e79889d50759ac90ceaf00bde3c31f8ef8d. 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/FR59R2142404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13178a244f9b8ad7cc2b50bb40bff874541c225b66557759eecdbb5d35137164. 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/FR2X42185905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb583b011f52552530733d65fe592192988bb45f7a663f6d1c390e6974d094c. 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/DGA072172630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae510e4a671096c69c5b46205e7ff59def96312e552da6637232f06f4223a8a4. 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/DGA052054870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9b1bab6968b0f95864f8a5c9a9a20ca63b010f478d18ca26fe4ef3dee1d8b3. 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/DGA052049163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6eafd3f32d3562c63cd46b0b854ce4f900ee4aa3e58d2f54ad3ff69afe5389. 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/GBKQU1659495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e26d2c17aca75440fb7a400a60263de011f71cbf5241d74df8d2db514145867. 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/GBKQU1659496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cbc0d676c166ed9d6b798192c9966dae2cd1f2ee19b3c196d7d9461e2e66ef. 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/RUB521203666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428f1af00816758e7b593c41d09acf14307524748fe9bed28f3499390f2d7c1d. 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/RUB521203231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5d738073f24d15182684824471f158aa66a0c22880f3d35e6e95f10265c649. 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/GBKQU1684559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4a71a7fc1c6e8c2923ddb63fa5f0b0648842f6ff9bd36db5fa544dd6a77140. 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/GBEH41594223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d16b71de45860ce49e6ba80793ce7384a68365a41e852e94018a407fd0cad7. 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/GBEH41594224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf1ddab4402c57b90ffdcb499b97ba732aa5e227548350142d4845e78ad4381. 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/GBEH41594232.
Feeblimended (feat. Irina Makosh) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31c6b54e54bb41ae98ff8139eb8fe01e06c3a3e8f7afba054e9ad7a95a321ff. 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/GBLC21609501.
Déepalma Ibiza 2016 (Compiled by Yves Murasca, Rosario Galati, Holter & Mogyoro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9cc06b0235baac508240e234d132d973c61737176c56a2dd6f91743ca5efa4. 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/DERN41600051.