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 0x33482483b9d08870642a23987b53a7b6686adf0edc098ca915af60897ab39d57. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/140bbf8e-3d1c-42bd-a616-2fd8eea6bba9.json and https://artists.proofprofile.net/proofs/artist/140bbf8e-3d1c-42bd-a616-2fd8eea6bba9.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 0x35d6a8217b5705fa1b0c31cb6a27622462d950f88673c2d3dac86100cfd4ccbf. 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/SGUM71700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba396c4ba390754ac6eb5c60456ff8ffabcb852db7949be3efcc8397c8cd001. 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/SGUM71800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1ac4820fa442b7ca0ff48bc13bd918a872ec6ce06107fe634e074e464ddd90. 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/SGUM71800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195b2d21b7db12e0b267a5874755e33cc88ac6a56bebb732f8cbafdd2b922a23. 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/SGUM71700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf39f9d2407214d54962585e699f9a2a4918a6b17a0df9339b4996054fedcdf6. 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/SGUM71800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd206ec7ca12776c529f4dcb8645aecfd4253998515632e21054d1fb3c3aee0fa. 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/SGUM71800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab50de8f56185f4b65b5e16425ea20256e2b60144b028f48b173801da8f0bb5. 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/SGUM71800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a61a73fc4a9c890ccb695a724cfb67acc1a70738398c6388ffde73d2df7db71. 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/SGUM71800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d11242a894007c8277a862c2f913b31f2fa2d65b2c0c275c3685e81113d8e2. 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/SGUM71800008.
Call, Call Me (feat. Sam Rui & Gentle Bones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a225ac6c47bb0108d016b242828ac2c930009df13794ca7634eb768701b0c5. 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/USUS11900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06e0cbf3c062fb1c3976674a36c810d36c1c41a1260bac6a9276e3ca5979a13. 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/QM4DW1722841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ea7f8256901860be5959dfea1960225e31447cadf6b445844540e6d3a51b14. 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/JPV752408682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ecc97a17e2a08acd39f3b7963ccb80279635a48c45b780260ba029fbf55cc5. 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/AUXN21720712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edfd3ce8df39ae56d933b342c1350b42536de253f7ff3f063aaba0300264e72. 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/JPV752003429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898baf854e56ce4cb4b2745bcf9fa06c04544172d3680e422d194fe04dbcd051. 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/JPV752408684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a30164eb6a2ecd316f91a2cffb136268a57b79be567743790a1c02316e5bdb. 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/JPQ322300162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333834a5db9eb5a199a4b541fe7e8f7c252ec8820d1ed88efdaf286457a33b88. 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/JPV752205809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff335bdd1eb42a403eccbaf49516b0893c14d3be581bc805e0f530975b67e70. 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/QZFZ72034711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02864f714044b952faa2abe680d6f5c72911372ce908204d4b7002415b3b8d8. 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/TCACR1615354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b64079b3a3caf6a5e14131dbada1b2bd9cbbac48c24a38617990f51d490d0fe. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/TCADC1742591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810ce460c219e09fbb71c0147d75cafa9cc0fbb751248d47c3a520caaa57bd84. 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/TCADC1742597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a67cfd4fa9d4261a217a94504558c15c124c2d480d7e2008965d6a882f953f2. 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/TCADC1742630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff038e14f1ef9147591876e0bc31f04a053b89ac0d319ea5c18f24cfa5958eb. 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/TCACO1696785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b93c69662d22a84ea8d3716a2f48a8ab7fd746484c88b032878784ed6850e4. 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/TCACW1766034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d036a321c247102d1f253f77b665244970d7ce362c51f2a2c5eb82366ad9477. 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/TCADA1791555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf493b03197034a68c5150f9acf51c6ac041535daa3c52feb488ad59f61665a3e. 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/QMFME2389176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd43f57f5ad427bef9115608e171f75ef54e26373df41186246fcd2ed4dd5a40. 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/QMFME2233135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0e4038a4088d11867f67f7fb0918a23d4b6c99b76f28a767b058966bc8d482. 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/QZK6N2044875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f336a5e0fa2bd891b52d6db9ca4e8458ab0b1832f23c5b23a3439452c4c708. 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/QZES91972476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff335bdd1eb42a403eccbaf49516b0893c14d3be581bc805e0f530975b67e70. 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/QZFZ72034711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff89ed7fae3ee250ec5cb5f1fff48c933e4fb97c547a6f2cd7efa483f7a0ac29. 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/QZK6Q1924982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f336a5e0fa2bd891b52d6db9ca4e8458ab0b1832f23c5b23a3439452c4c708. 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/QZES91972476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccb2196c3fc445ae791a50603ded387e3a9baff23aec565e60c55a9a4b28280. 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/QZARB1889405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d036a321c247102d1f253f77b665244970d7ce362c51f2a2c5eb82366ad9477. 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/TCADA1791555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02864f714044b952faa2abe680d6f5c72911372ce908204d4b7002415b3b8d8. 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/TCACR1615354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff038e14f1ef9147591876e0bc31f04a053b89ac0d319ea5c18f24cfa5958eb. 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/TCACO1696785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7735b0011b943a6875242d2e07a22146d3cfc671f752163899a0d5fd95a810d4. 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/KRMIM2001456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5d786a89a9c2ec4e9f2a6b13ed8290576fe49e5009cba609a168e202ba988c. 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/SGB242300866.