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 0x7bb3661cc390ba6b95daee842f1f26dc0af99dc5c218e0563860beae9c4eb1e4. 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/91de6835-ba8c-41f2-998b-ddcd5e79ee21.json and https://artists.proofprofile.net/proofs/artist/91de6835-ba8c-41f2-998b-ddcd5e79ee21.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 0x03d360d5f4c7a607a007b3cd40099ebd428f7ef6e7d126db0d9efb14d970dd23. 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/GX53U2493778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2724e2d67ac849edbd9091644fa904b2c410d23e0e49ff921702040e0f4060. 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/GX53U2493779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a07f5ea8577c60174f0eb1a1bddbfef17658b3820671dec38b770fa4f840e7d. 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/UKXN22436956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e41affdd57e6c68e749d6ce93e357101bf43e67cd9a98f31ed8858ea53d3513. 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/GX3Q92406268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d420afe7655f5948d69026ce590a59dfdca8bdf26a3dbacaaf81083ceb5c776. 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/GBLFP2425264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eea4604f841788bbac3d75dd3d0c5adee76b21ed4e94dca3753cc57cc0d78fb. 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/AUMTB2100225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29196a34ee42e7a0020333a0844622ccca94714bc1b2090065c25c16de0fcaf6. 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/AUC102456710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73cbb93d5940154a4378121ef04e4921c828bf1caa86b394a5551ef01b89848. 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/AUC102456709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa089088c357e1a57c44bd082c58a86b9a0f5a307142130258ecc7fb58abbe60b. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/AUC102456712.
She Walks Alone - Acoustic / Orchestral Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee57b5ae77d887194337559ce0509ce375c6be4f47172c1292a6031abe3ffacb. 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/AUC102456713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd68d22ad91f95d34ceb8a6466bcbd9e2a41ebb13f0f49ed9df33b98edc62184. 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/AUMTB2000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8a27cc84153ebbeb3e6b756722331b3f9c8df2668c15aa81598355bb9318e2. 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/GBMA22059316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b488361c90fb412c77fca53e5c4f708d7bfe1c649a415e16a3f0ee8e75adec8. 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/GBMA22024590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71b7c57fd854c326ba00729ff507e62b7c0765fa15582621a84f597039a2c10. 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/GBLFP1972134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537b8e7815ab70d71f9ce7e78a55b4252d2b769808a3a60854b6089fd4f9fc4f. 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/GBLFP1921292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39657bf2572330e90beaa6c803eff5bd6779ff554bcd1ac04eeed65634fa23b. 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/GBSMU6322393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a46a94e748dad64a54be4244135800a61a69294ee6b58370cee86dafb155be. 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/GBSMU6322394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee0e042156c994b76715f00346a31c3c61ddf59bda4d3da232708951bdd8fed. 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/GBSMU6322395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccba2fad83f297026ad06c2091e67f4e21a4e8b12dc8c98e3d1974bce7fde52a. 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/GBSMU6322396.