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 0xc75a98cdadaecd5b540a911018717f6622d7c708a110b38e518051b0bcd93725. 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/12197d2e-0560-4085-9c2d-1ce84ab10a01.json and https://artists.proofprofile.net/proofs/artist/12197d2e-0560-4085-9c2d-1ce84ab10a01.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 0xc672b199bea6c808dc6a23d8ec7f21f10a2a1fb423290941363967b9490140df. 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/FR9W12014145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24afafc96ca500eb901385089985fa282da0ada79326f8daf69105b3dd1c53fa. 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/FR9W11905821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef070e28f09374fbafd5519982d82c8b4c916cbd5d36b91a45706d9875892e42. 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/FR9W11929787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919946bb14f49dd6a07af69639f455a473762a139007c65d087b7a3b25b619e5. 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/FR9W11822747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2493deb56ffaf21ef055ccec075cd4c0740027c1e41b2c8139c3c2e2c0c3ae. 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/FRX201851925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd299707c0858f57babc04f0e547f41be3aaa36815ad410e6c8a7df58ad74ca. 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/FR9W12000263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c82291522085e66da9adecbc40526f301f1f85e50b96c14253a58ea1307be1. 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/FR6031500540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657ca9bd966fa4412cd73955e05a69db754af70a75c7ff823a62fd943406b7cf. 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/FR6031500520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554ee53d3285556dcd1c6cefa76968f2343f67ce18e96e61c451410499cbbda3. 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/FR6031500550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79888910900719c796beb5658f3d5fd48a3c456e5b7c5bd057b03d51bbd399d2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR6031500560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efbd60db0066319340a4ddcdd21d57cf4f115bf80d14df45c6fd67e761ee261. 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/FR6031500690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf044a5d05ea138ba7703480bd757f7d79dddb4f39ed3ce91a12c0dad7d852f7f. 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/FR9W12134945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc672b199bea6c808dc6a23d8ec7f21f10a2a1fb423290941363967b9490140df. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR9W12014145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0211376a378f8238023fba546725e37557ce073711cd7cac9b670613da97b7db. 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/FR59R1927134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24afafc96ca500eb901385089985fa282da0ada79326f8daf69105b3dd1c53fa. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR9W11905821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2493deb56ffaf21ef055ccec075cd4c0740027c1e41b2c8139c3c2e2c0c3ae. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FRX201851925.
Plus vite que les balles - Instrumental version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4823c525f020da6cd4b70ff6a76fa9c16e1fe545a2154e7b6e6789805f53c0. 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/FR9W11822748.