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 0x2f1959babfbbc2c177cf36948acb5ee4ebfac70512c1989b2601476a79a707a6. 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/6c7c7c6b-f928-491e-94d2-fb9c976b528c.json and https://artists.proofprofile.net/proofs/artist/6c7c7c6b-f928-491e-94d2-fb9c976b528c.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 0x932d6872fb780310ba6baa1f3797b462b43b08dbd0df721aa3b7919bc24241fb. 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/GBHLW2301762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43e780e8ed9691e8e13fb2cf896144a4d8182f00cfe787a08e6e50d2ac1faa4. 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/GBHLW2301763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25da73422ae67c7f42fcba846ca3ac919d1bfcdd8e13ad623c24a935b5a2512. 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/GBHLW2301764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365923d9360927cdbf2c0202077353e16851e4b820e0f8845502c791fe166b1f. 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/GBHLW2301765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459d481bee02a631108eeb22f7ce03da05cd70de7adf1ad0f303bf628c4ef773. 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/GBHLW2301766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c31fab89d9c003c66c746c1944b427fe7393fc2014d091cfa765121f82de2d. 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/GBHLW2301767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfb0bf3eb5af1b62757b3face27a36ec17f0e1343d83b71e6274e4c468daa83. 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/GBHLW2301768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621845e78f0ba732da6c2b8834ecd91b7be4b68414f2b5d69ac595254172a347. 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/GBHLW2200961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06758f9b14f14033302b02f07ee583f1ecaf0c6e99e3e04006d9c6ccec2bcdc4. 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/GBHLW2001440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dc021ace7210f20dbf1b389f7971a5632a1280188327807fb781374f7ef4f2. 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/GBHLW2001441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dea3a07297634c764607ca6bb495a45dc5747510b918cbef04b4deb6650dc0. 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/GBHLW2003057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09679f575c39996126f85941acbb7897d6cb8a016e5dc5c7a528dcd9f3d40596. 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/GBHLW2101169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a31bcd900a0fdd9cabe26b778cb6a6a1ef2cec84dcefbd9f68a827c382a87f7. 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/GBHLW2400213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc01066ca6cad20779d0bf05d7367c11e7d818aa47722a1b20a00ef5d2b6b626. 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/GBHLW2300992.
A Prayer For The Unemployed (Croatian Amor & Scandinavian Star Dream Mix)
New Present City (Croatian Amor & Scandinavian Star Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dea3a07297634c764607ca6bb495a45dc5747510b918cbef04b4deb6650dc0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBHLW2003057.