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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606db01f2667b0c979fb84f2585160085b84722526125c6bb1b4e189610e7dc1. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99261c0f-45b2-4cb7-a6a8-ed74514fc315.json and https://artists.proofprofile.net/proofs/artist/99261c0f-45b2-4cb7-a6a8-ed74514fc315.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26575e06bd80fbe5c7a515ada37995bc64d7ff9ce5c7626f7d6e18b0cf303067. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:06:25Z), 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/US83Z2239075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca728f6b9d0e81793115846097660e3c2695efe8a13ca16e961309e62400360e. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:17:16Z), 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/GBRKQ2341619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc89b5fffff847dbb3963d4e1e055fa09f55168552169c2178da4684a487ca4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2468281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c61c072bf31934cb703fe50a30fce6fbe06975cc666ea3bb7a2dd567c459c2d. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:24:42Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282461105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d5e2d92db54aabef3401f950e9ff179f60190c3a102fe24c59bbbc041234fa. 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/DEY472479520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f056e521b66bcf980f539f6a9147bfa92e926474ee3ef99d3aaf48644216a36. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:25:47Z), 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/DEY472479521.
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 0xa2718171c31d056e31eb43151d9d024cbeae67ffe459782995a35c0f510ccaeb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITREI2500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a75a320cd9b31bab0cbaa54137d3bf362445022d23b8b76c5145245849134e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NL8RL2552117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80543156c7cc9c0aa1a1c38568da767f955a839e138b141980ef4c43accb363. 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/QM4TX2567565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80543156c7cc9c0aa1a1c38568da767f955a839e138b141980ef4c43accb363. 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/QM4TX2567565.
LOVE POTION (Eli Fola Remix) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726907dffa2b111d273db35e6d9ff2e9206d85ec54c5a539c3593753fdfc6032. 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/QM4TX2567568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4811de26765128e8bf80780343bd7a58fbb0142c203f6a715358cad2cbb4d8ed. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DGA082391559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd6d7ded10273dc6377a167115a0015616cbdd382c071675067b6c0bd3fe0b8. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NL8RL2414385.