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 0x816c15dea20737127f6c3bf061173d8caaf45efa0acb9fa1bd3e014bd2e01520. 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/0abd76ea-7feb-455e-b17a-b654cfb055de.json and https://artists.proofprofile.net/proofs/artist/0abd76ea-7feb-455e-b17a-b654cfb055de.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 0xa90edc2f323399fb81fcfa36a20c16a2370362fe352303eabb0bd46224edb088. 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/GB9TP1800818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62aba41ac6f34bced637b1852bdd77c4cde97c3ee0152cd5d6198e5ed3df44d7. 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/GB9TP1900252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569678c5d86bae0dc4b2a177001ad3c1bbb861f3ae1de3abe6d3f0322c3c468e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:07:40Z), 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/GB9TP1900259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e61c0a250583c95b77a49462b5202431487f5e920909dec7be147079682fad. 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/GB9TP1900260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd5a358f53aa21ad824c2fdbbdb8a292e89863d8f13070551a238d54ace73a3. 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/GB9TP1900261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ab8b0c7ecb8feb1511369a75a8f3fd6c16813a44bfcc6043350162562c833b. 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/GB9TP1900262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884ab99e5bda64a540e50ae5371e2233ca45a353b0b1b45d3b618b4cd8b08fc1. 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/GB9TP1900263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1598e8fa6d90b59d9577f289296344ffade938851a462ff72362854b715cd4e6. 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/CAN112400832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40660d40a11a4d74813e429c4d4497806e0623120f86ed87fe64c32b81d9061a. 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/CAN112400833.
I Don't Know What Love Will Do (Acoustic)
I Don't Know What Love Will Do - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8c02365b5b731e644c5401ab82a161f02eef09877c6c854b5566af6ec85532. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USLD91752643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7475c8c811dab7da0b4d2a433ffb85823f4a155f7304a4c5bf5ea00f2da12a. 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/CAN112301554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6217b60ac07ff1e655b3122cbf3defe3b7518c94b321b0694e29fa9cae50d14e. 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/CAN112201101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547db975a8f081f2b30673c3062491197f2f7238d272338c2a5b314260d800ea. 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/CAN112201277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13e0df8b361cbc3460d7e69170cbdf6bdccbd521baf69876ac73c70f810e7cf. 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/QM6P42041629.