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 0xe57319514f22c095da5922939cc8c4b78ec4a4a653c3f06909ea89a31efe069a. 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/86747743-b0e5-4fc5-9ec2-fcf0b6bf90ea.json and https://artists.proofprofile.net/proofs/artist/86747743-b0e5-4fc5-9ec2-fcf0b6bf90ea.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 0x514c576cd9a31df8d9bd305eeea153bb65a3a7bd7923a50d5192ce2ddf535bff. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/US7VG1705411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3627d5c6dfefb3e9d8f214644c72bd252cff45e730390a6dd5a7bfc7231529b8. 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/QZNJY2220398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea47e9317304b7fee56990accae7ffd0e1c1566d646b746692637f82e48f6c7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXG6R2300452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671940ce32c878c712917c66bf0d3aa6a9ba792be5c31c4da3d54a8090550a8b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXG6R2300453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ffef967647d87ea8d59689a55507c09415fcbbcbb786f05fbc5b1769d21cb0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXG6R2300455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732285d4e5ac59e59f0eb8ad8776c2b4d139a7c7aa6953997cac7cfa823e2d89. 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/BXG6R2300459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb8c85cada1eee15769d574bc518e994879ca0c83b1079b41a2ffc14b996582. 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/BXG6R2300460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4746f9760faa8c261570ae668c902996f44d8b8a8dee189a37b2266bc131a16. 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/BXG6R2300461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23df6fa0f213293e355fda4c4643c2ffd5d6f10498569c1a22752ada921c3f67. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BXG6R2300454.
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 0x819e1f8ac53278dfb9d612e4b2ba232e46826acc18866d5693d20bf2fb772b8d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/BXG6R2300457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a287d12778a8f9bbe413f25c2fa92907e48e3867259dc3edc714d70ed94720. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/BXG6R2300458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df19251696e7d2e25dcea4c3a078cfbc50781ff2bc98be3cb80d103a40d09a2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BXG6R2300462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb628dfaaa8b4c1b0c58e9f63bc95aac89c804dbbe4af58b22bbb11b3f924435. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZW9M2472573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf65fc6b486fb23f8f2c02946e0a5254b792224146c989d317264b8246b5b04. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXG6R2401138.
ANO NOVO 0KM (feat. Mc Dricka, Mc 7 Belo & DJ Nene)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd817c316ed93361a4f281b90f9ba6ddce437a8a418563d1758bfce41c38a0762. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/BK4DA2505151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eeb09594ef95948afb7fbdfb25d93154a02114849160975ad7a66a91805e0a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BK4DA2503253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb2ed281fe808e3618dc3f9e4a7cd9780710e191f7feedf4b12edd001752a35. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BXG6R2500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96dd99e66b26819cb7ca6c497cb2d1d77a7d63ced139bfe4806c5d565d6ae676. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXKZM2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde55b3b799efc26e688cd35364b50a395d4b7bcf0a9b3a298d36e281c8fbce3f. 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/BXG6R2200536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d032111ee98e5dfdce0ccfe687496f413741c62f7a50939d9e0845fd3113222. 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/BXG6R2401088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba9c925cbb272023426f83d776827d5919fdd3f0880d646d82a820afa0243e0. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/BCGRP2100148.