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 0xe85712581dcbef7173d5959958d3a1448917bd05a004ccb93040b209b2ec5076. 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/50c1f3da-c771-4747-a7ac-e8381f6a4671.json and https://artists.proofprofile.net/proofs/artist/50c1f3da-c771-4747-a7ac-e8381f6a4671.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 0xc93d8785e8f6e7c40b0bf35bf8915c01a602efea529d07193ddbd0933f7c8b71. 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/GBKQU2371277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335d00285269f5dab4693db07e097cc212e57092e0847e765cabbf29f0d0faa1. 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/DEPI82306857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855007739ace5e8f42f19e094ec5f6c1858d6fbd92d10d878995b136c7adb04a. 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/GX89G2210331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a751fdda028ca975792a5548b51fc404893eb856fd756ef32e3a78644188b9. 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/GX4R52315103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb6cd6af759b3a9924d8c29303deca26f2e10cf4360f588ae39cf537119b9c7. 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/GX89G2429320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee0cd3b8cf9313d88926b8592eddac14e3499f1b599513edf1af14933a2a7ff. 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/QZTRX2352951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8025c806935d782af86211ea2fe9f460530b558178613ec76551796cd2d2d0a3. 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/GX4R52360053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc367e00fec3ec14c24008b82d8c07cb2a7c028ddf25a8c7ddfaf9b3952226afa. 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/CA5KR0042585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902ddabf1e4cee037253f2ccfa0b6154d0fd3908ed1fe32ba9d539e6411884a8. 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/GBSMU0047121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871d461ba90c60e630a0f4b27f5a3f56f8ae1c4ea7468537e7787a4cdc32a4b5. 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/GBKQU2357458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711055d28633be8c21e805ebaafb238cccb03eb91d5584ac5ff21b2e0c4b4b2f. 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/GX89G2221709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8ba41f24a56badfc72f6ee921c4198719d0810f3a8ee8848a1e52e824546ba. 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/GX8LD2375655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e3b754c43a796131fdde005881bdb1bdc28cc71f20c802d99708eda1675aee. 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/GX8KD2357202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9336f74f5221c2909e41d790afb96cf78836d3a08418b214c6b0b40519f25752. 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/GX5MX2152380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d43cf3ee84ff9d046ee8e9599bc2567fda3cba5958334c2800eec418f417544. 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/GX38U2256874.
Rude (slowed + reverb) [feat. Cour, DJSM & Robbe]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cc552c7a4e5c7f01efc743f5b42c4b0c01ff7d5badf9097a1c64ccd28cd733. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZMHM2204716.
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
We Found Love (slowed + reverb) [feat. DJSM, Robbe & Cour]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3663c1affaf601991490f472b51ddcc003261529086903a9bf9c3c397e4396bb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZS652238139.