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 0x048adc92ad5fabdd3e4a4f6d47bb5e13cef94ac473d609071148feef2a2c6735. 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/23538f2e-c48d-4d6c-9db6-2465385facc3.json and https://artists.proofprofile.net/proofs/artist/23538f2e-c48d-4d6c-9db6-2465385facc3.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 0x65a3d83448d71463b6ac58388a0c1a8550081aeacffe25fd8afefdb747568352. 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/QZFZ72587719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557b97bdd562ebf9a262c479ef8f9f876e1ae143c1b073409ad72fc9b37d5a9f. 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/QZFZ72587720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d92324165979550913e19940bb7051a1f72cabdf47cf294e82def1c667c6c8e. 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/QZWFQ2441789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3885f9c6735d30c099651ca08ef455aa3eda4f3c98b268d16d491816dc2140. 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/QZWFQ2441790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27956caf6572b9678a5f003702501cbc2dc6e8f92a58acd44e9722594e79e083. 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/QZTAZ2457921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61091f052dedf1e2b9177d898087c12f8a06d4be4275b12dd334a286cf348c5d. 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/QZHN92418127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68958950819fd97ba1d42b32b5ecf539f083c0647a64ad5d6a38784a3ad22e2d. 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/QZHN92418126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b95ba154d5fd1489ab4c52f7f7d88632df200819389d5819f0166db54e826b5. 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/QZHN92418125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec054a50b1f16292256427c138ff9ee6814fcf07dded714fac754a5cd1c139f3. 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/QM4TW2474771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c3207500cd31a3c15c2e3de453c23b6af2ff4d8ab32a2453c2cb200bcaf577. 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/QM4TW2474799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67035b5ec01c1bb77fcc85c560e797c27483297ed814212e50aa484c8b75c376. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QZWFF2302342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480cd0c87d85c477233b9afcc18e2579d3204558a480f849a5ee18af60185021. 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/QZWFF2302343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfe8849c541c58f4598c85987ac8fad22ff7028519de4b9da9d63e82cc4f809. 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/QM4TW2563373.
MONTAGEM - DANÇA AGRESSIVA - SLOWED + REVERB
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2557f9ab9af610b6ce846ff4b7a85fae62202489ed2061469f54cf88f99f9135. 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/QM4TW2563374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac73903081e93d6f9b8d7294194a14edb7e7b43aaaec649abd446f0f423ac0b. 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/QM4TW2563375.
MONTAGEM - DANÇA AGRESSIVA - ULTRA SLOWED + REVERB
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c73bfc509a520fb703d43e32529ea2aec367c1293b9c35304e0dd8b0a918e17. 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/QM4TW2563376.