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 0x96d5dbc2945c415ab6a704b5a22b1bc47f16f7aa14f1c6b050fe68c29eab05d1. 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/76f77fd1-2422-4464-95fe-2ca9bbae268f.json and https://artists.proofprofile.net/proofs/artist/76f77fd1-2422-4464-95fe-2ca9bbae268f.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 0x457533aa6ca50b7f8246315362cb8e52473260b0cbb2d953600bdf9884945145. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAFS2186536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198692d771c83bcca5f9b3f8ddc658e22b879a1a5ccd843f36ab54fe12ab25fe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAFP2174286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6af8043db04729a982e5d4c32023cefac802caf14678cdd17022b4e7c1532f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEG1922549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42733443afb2c9bc742cf9cd3663f4447aa075d1db8c3760ab7bdcd267aa7886. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEG1922553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee28fe984b9958dc89046e78d571efd9f7241b8098f661fe67e4b1fa4389e9e8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEG1922555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549b31852c0130da886f35cb487356c378f12eb5d0ca2edaa7881de48250d500. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCAEG1922565.
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 0x768b79ac3233caf0b2b466ace2572246f46c737276733f9d2da3be1ecf2be602. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADC1763739.
Give Me All Your Love (feat. Preston Lee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12128baf5a6ff9dce114a9d2bb1d3d04416a5b8fcafc1130e49e56f4cd2608c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADC1763752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e1874f9fb6df38f65de005477c1a9d82e2445c27cc4ba510b488e13bbe1c03. 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/TCADC1763754.
Give Me All Your Dub (feat. Preston Lee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ccbf7f4bcb0cb82db2060a6bc89d2cf6abf824dd68ab84c6e0fe345e17d00d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADC1763779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce0bc2aa21c24a9e1d39f73172980cd1201b87fff7707bceceded3325c5aa28. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADP1859175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc72ddb5396a18047a4e7849562501c2bb8b7b0ef2d87afbf54ae835a6918543. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADP1859184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f4792d4f3e9e1cafefdf26cbdc216ba9b6ef40ef9e5db25a1f2877795c1048. 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/TCADP1859187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a2b866ae05a182d2d93eec12eae2bce987a952f45fd092f7b16ea18a81f8df. 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/TCADP1859190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288233aeec083704c10f157d2a9f7fc233505eec790b224ddf09457a4f716dfc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCADP1859197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cb8a674abb9ac8d8df38c4133fabce8c6c053823146f9cb7ab8130ce5e516f. 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/QZFYW2072744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71996812e6191edb8e2a475e6ab0dd86acf9727e10238e9e8c4ccddb05ac71a6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAIL2401048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca3247a52ac2699d59e3798c1fdf2d216a199edde97e9bd317b4bc1bf7459ec. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TCAIM2401076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cd0c0ef0b7b365c008264b0bb98a1f1d53d9764f1d2150739ffb283e9e8490. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMGD71800671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38d10506131ba8331a3937d0cc0139ef2b73fd03c926f9748f66bcf209f36a4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMGD71800672.