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 0x90e5f8d0439882d58e54cfe3ef3d5f14f2460f0164dd81780bb053228cd135f5. 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/1387fb93-c932-41a1-9c79-23f37d4f69bc.json and https://artists.proofprofile.net/proofs/artist/1387fb93-c932-41a1-9c79-23f37d4f69bc.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 0x069953f7396a5529a6fbd6e81dfb2a4789f0c8f5ebc56ebe27fe6a7d8e78fb85. 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/GBWUL1933445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb727e9729ae336fc2dcf5a1af1bde659c9500ef97dc512c19b4043da933231. 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/QZ7R41951650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10af64c104fea3468397a9885ff4d2c80b7b016fea1992ae4dae4edd9d3640a. 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/QZ7R41950316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebf3be32062483445a736cfdd28691a9a706839dbddedfff7cb20a45d4b7cd9. 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/GBWUL1933467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824c11a2fe23a164fc51bb4dfabcb010b18c565afc0d0069b523bd7e6cc8eff1. 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/QZ7R41950553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6259f56ade8b39e01a03194825bf84f9510a0ccffaa585c85a569c3433799ce6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCAHX2473991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707bf50d2a375c3272caf1d41b2b36e72b687000fbef7c9933d1a821380819e2. 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/TCAGZ2368714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f28b9a1d56a62266a04729f1dec95f1fe261a3cc7c9af71e50349da0a2092e. 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/GBWUL2084332.
Levanta Tu Bandera (feat. Yessie, Danny Marin, Mr. Fer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3b662b34f611e884eb5dd7366ccece27eebf80e2089b7840007ce78090ed75. 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/QZ5FN2084406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e989230a0268a69b66e8c805850314047b0d67112d3a9c3b69ecb087f2d950. 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/GBWUL1954232.
Buena Vibra (feat. Ale Puga, Yessie, Sunday Funday, Pedro Cuevas, Hancer, Stephanie Zelaya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8f9afd683478f36281841d7a85b63cc24841283f7b1ab324625fe7d26c86d9. 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/QZ7R41951855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc683feca94f9f46a004af4a96c13fcd3fe4f0a362b967115da1fde5fa48d9e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM4TW2488484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4d88d0cceb1cf9b8a5caa79ea8d782a3d957e1efe21de5966dda58a9f3a3f5. 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/QZ5FN2129385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dbaf056efb90a2e975fa518c3e0ba5c51edd6e7b2bf67295aacdf364019215. 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/QZ5FN2129517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1917f472f68078ca179af7bd3285ab36a235cb7d8e8769db765d88f7d895f4. 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/QZ5FN2129522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030652e1252507cd7e4727e61fbe638355a6f38b047fd9540721206c0df4e224. 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/QZ5FN2129528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab8cff148c87674ef3514c7bcc004ed0f61864273da22bc97349aca8058fcaa. 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/QZ5FN2129529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d9e19a6012b8505da14fcbae2ccc87e878edc826152328516de9b4fbdcb5d8. 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/QZ5FN2129530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b57f1ee6694cbf6eabb7240702463f8ef277ad7b05566c597d99d81040f279. 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/QZ5FN2129533.