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 0x8b7a5a96198d76e7bf97e8d7a0d5f9407a469acbe52502f8aa6bee1b52a7820b. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bf9d8ec-2726-4451-9612-19cc73438388.json and https://artists.proofprofile.net/proofs/artist/4bf9d8ec-2726-4451-9612-19cc73438388.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 0x2e6eb6587054fb05c40d686e7dda6c3da088981d66687d08c1b78c4bd8de93ce. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZK6F2397430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa774765696ac06cb00ed232428d6b1eb253b5191a12960fefb5d1583961cbbed. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZNWV2467367.
PIANO SONGS: AT THE BARN (Piano/Acoustic Version)
Psalm 139 (No Escaping Your Love) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0117dc19a226e02803249ced789c126000350f2a4c7ea9f6cc82cd95bf0557. 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/QMF922150091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3a0c9189e359226d66d287c8a828a387af2792783b059b59aad2e0bc7668ba. 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/QMF922150095.
When I Speak Your Name/Still On The Throne - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2ac85390fb6146cc2905bb689a4284248a7b58f4f214a538ea0b55c9276bdd. 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/QMF922150098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093d53ed8dc0db26e33ff871a9c956f9c6656b59aafef2fa992300cbd1c78c12. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMF922150099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39e51b201f0685c93096fc8bd6cc43652d23c1c23f332d839f1039d7e786995. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QMF922150177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc494dd73999499225b9c714188cb9a969def5fb02d94d29162a418cc883e03. 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/QMF922150180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9f7a05e91da2d6bce77c32a531453788a4463909001e583d38c8a3c05c32d2. 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/QMF922150183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2212b05bb081d4e74b2c2db05e59454f5e62c8ccc8f0e43601ec901cf472ab. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMF922150185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6b791c05eaff1bdd8811db36b6b918e717dac2a71282a057a8b9e2201e31b5. 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/QZK6M2024656.
both the night and day are the same to You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628baadedbd0463a90f64ad339f5cbc495cc320cc90c3ff6ba208842463827eb. 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/QMF922250149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093d53ed8dc0db26e33ff871a9c956f9c6656b59aafef2fa992300cbd1c78c12. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMF922150099.