Louis the Child (893 – 20/24 September 911), sometimes called Louis III or Louis IV, was the king of East Francia from 899 until his death and was also recognized as king of Lotharingia after 900. He
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 0xec9a6e060ca4431703b1255ac418ee4cd2ee4934ca3ccf93ea262bfd035455dc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e4f7039-3a59-414e-a298-b1fa93d4f8ef.json and https://artists.proofprofile.net/proofs/artist/8e4f7039-3a59-414e-a298-b1fa93d4f8ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Free (with Drew Love) [Party Favor Remix]
Free (with Drew Love) - Party Favor Remix
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 0x60b73813c5b6e1af26238ffb0cffc1b4cf0ad7e4c051a5645703eee0a5246a76. 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/USUM72011068.
So What (feat. A R I Z O N A) [ARTY Remix]
So What (feat. A R I Z O N A) - ARTY Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49933941a9efd5ad173140243fec65f95a10be241dbf715eba824b47b40c9d6. 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/USUM72110069.
Little Things (with Quinn XCII & Chelsea Cutler)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07872472a7b43775d8c7637482bb2763dc8f8142dfd6c0edc094354484c0e17c. 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/TCAFQ2100849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae82921d5a84f0a082edb43337f70736ef9d3d90b82376dcdcf2c9137215c07f. 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/USUM72221927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bff1e1edcc718b5819f39b7d119eaa41870edce3290168a29c169607114720. 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/USUM72019704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb519a6497d3ea3b6364c264c733a33031bf926fb6580a9c7bd24792e45e5cfdf. 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/USUM72100963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc5d1076ee9be80fc8d578d4b3fd28c622267013e10d96a3ca3ef30c4b9d6b9. 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/USUM72017784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618450254f9d0a4d6f1dd16ec7756bee03868057f833ae46f9dc94b9101b76aa. 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/USUM72017787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc8cb3340667e0ac57fda6b1f4c787f656ad5cc525ea1ab5c8a85060f9af2d2. 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/USUM72017790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109c324b47acbdae97eec09a35363e81270a2d817f3238c92fc38e4dd7cb543a. 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/USUM72017792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b133d5cfb851b7c49d9a60ef2b5d57ac6557255c2e67d708caa579826f78296. 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/USUM72017800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6c5703801f30129c7419fdb2df9cad4190c15cca7c9142d870f6aecfb7a776. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:05:52Z), 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/USUM72214713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9047fb78e3158a3def80b1cf38475ec5009d8f89d52334714025f311d8f61131. 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/USUM72214732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bce46723169b100a64911f1c89f9a1d84e4113086d500b11ea909461976d3b4. 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/USUM72313029.
Walls (feat. Claire Rosinkranz) [Devault Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ccc6f133ccb8d6134bac5b66eab3d2abc5916b4c331dccc0b12025ad230789. 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/USUM72310587.
Daybreak (with Zachary Knowles) [Angrybaby Remix]
Daybreak (with Zachary Knowles) - Angrybaby Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf813ec71fb5fdfca036ccfbf3fad839be3e3fefb6635a910840a194f3d44dce0. 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/USUM72309727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099df1915a77cb38a43a2e5cdfb5d4254843f32d59fcc93d6d73f6bc92572486. 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/USUM72308806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fae7393705d4208b0eeca1f3963aca88be011465cad60d624975415f84b6f8. 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/USUM72307140.
Talk (with Royal & the Serpent & Carola) - Carola Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e53fa5d170c1a3eb60274cd72eb0818604b070a637b438808d96958fc0eb28. 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/USUM72214729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24614498e126801bd5ef1a3ae666f7b2e1c6e583cfca44029f48dc5ef583fee8. 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/USUM72206206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa1385a3f557e51549a99763dff1019a2d6177c4031542b32dfac1e596b3829. 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/USUM72206207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24614498e126801bd5ef1a3ae666f7b2e1c6e583cfca44029f48dc5ef583fee8. 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/USUM72206206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf56c70dd3011f9fb987292c4f85c62cd828b5a410a0a277888a412a677bd6d8. 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/USUM72205505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac9a071ff713487ca611e27d121e1c471db41dfcafd14e61fdb4bedf7ba5e3f. 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/USUM72119086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0bc78ce7c6c05f89f569e26ede6666688ace129b884ccbb411c09298213c34. 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/USUM72118275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3931f9d0687627156afb7cc080c2dc19ea328c00e6e440e583517276fbbe20. 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/USUM72119087.
Keep On Moving (with NEZ feat. Theophilus London)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb519a6497d3ea3b6364c264c733a33031bf926fb6580a9c7bd24792e45e5cfdf. 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/USUM72100963.
Self Care (with COIN) [The Knocks Remix]
Self Care (with COIN) - The Knocks Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4480adb00b53f0eba46fe27fa403c9a47ee271f1e7204323abf7ffb43fcef9c4. 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/USUM72100389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bff1e1edcc718b5819f39b7d119eaa41870edce3290168a29c169607114720. 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/USUM72019704.
Nobody Like You (feat. Vera Blue) [Hermitude Remix]
Little Things (feat. Quinn XCII & Chelsea Cutler) [Acoustic]
Little Things (feat. Quinn XCII & Chelsea Cutler) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b35d11b17831aa3f2384101dd7db0adb7d16be860f2a0262c40e32d605aaf8b. 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/USUM72016180.
Little Things (feat. Quinn XCII & Chelsea Cutler) - Will Sparks Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375c5bfb57acebae7b393cba2c67ed22559cadc5ba1a3ed9205cdb5383ce2d61. 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/USUM72011155.
Little Things (feat. Quinn XCII & Chelsea Cutler) - Will Sparks Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cc8f5225f00594eda84e39441aaf0bf7efa7df702314e52535a3ad27d91b26. 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/USUM72011312.
Every Color (with Foster The People) - Dombresky Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc24cc722cb83af73a43c41ab3b081ba99672d2ef653ca02fbe2d67dc3fd08c4. 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/USUM72007733.
Here Comes A Feeling (with Naomi Wild & Couros)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b6ec70b25b0ff2b23aaefb63f79d2c3446582a8a558bb616d10a23ab6dde9c. 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/USAT21904474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa743982ad58c833e13e14821ed0b428e7f688452d1c384c48016506c72850257. 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/USUM71914939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e0cc674e784b4e56125eaa0a660af5c4dd4f724a8023d8b2259511a74addaf. 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/USUM71913148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db715c77a1d9ea702211db06c27d2ad6d27f828fad7a9b1c4a21e5d0cab3212. 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/FRZ111500798.