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 0x03b996586dd0760249ef1c3044b03900b7f0af943bf7bac38276dc099c26b1e0. 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/083f1d23-d009-4066-9dcd-4105ba8e2ff8.json and https://artists.proofprofile.net/proofs/artist/083f1d23-d009-4066-9dcd-4105ba8e2ff8.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Instrumentals to Float Too: Red (Slowed & Reverb)
Instrumentals to Float Too: Blue (Slowed & Reverb)
Instrumentals to Float Too (Slowed & Reverb)
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 0x0c3a7c23aad7bfed75a02778389aac5e85efbe59088b91181b396fd39ed53f04. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2348213 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a446d555fe8a98e837cb48865b800bb5bd63a1290a5ef162b4936ab6e772ae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT2VB2450775 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe52e90abdef36bf40b4b80868fd4927caca3353489e89c9fb817ab533a19800. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT2VB2453493 — a six-check JSON result.
awhilestilltillsunrise - Slowed & Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45950d6e9b09b9da20283a115104aa4bca1bd4802062f3709bbc4deb0d1c54f5. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2528682 — a six-check JSON result.
Instrumental to Life Vol. 1_Slowed_Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1404974f3ee6087663fa0a69c7f0da05569d9f3b186b6c1e9f206861f04d907b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2587582 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd395e73cc68a70c5bfc456c9e2bb26fe3df6fbba5aca72a52bbbe4b27052d468. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2587583 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b17743fdbe10c213cb06640c1368eb25bebde36538888e9e75ab0e7dce5b85. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2584081 — a six-check JSON result.
Instrumentals to Life Vol. 2_Slowed_Reverb
Instrumentals to Life Vol. 3_Slowed_Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe929e6690d05717623162313cadba9ea5d259c4cfe4c65ab6807d64232b1fb0e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVEM2534965 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4ec18814afe8a1ffd4478a874aeb23f8719010e18e5fbe5e761c20775713c2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT4K32526155 — a six-check JSON result.
Instrumentals to Life Vol. 4_Slowed_Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853d94369c64f96fb7a2e624ea88679250f6f7277aa5e49b93559d06055b6f8a. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT4K32526172 — a six-check JSON result.
Instrumentals to Life Vol. 5_Slowed_Reverb
Instrumentals to Life Vol. 6_Slowed_Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af39177d79d9cb4f3870b8f24ed2aec1552224d863e8d02cf91d0ee475b2c5f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT4K42577018 — a six-check JSON result.