1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x26b3f8e10c0dcaccfad15c4ee2ff174cc3206351f9be867f62ff25e8059ee2d6. 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/ba84ad30-6754-43e2-a4de-fdb380c301d5.json and https://artists.proofprofile.net/proofs/artist/ba84ad30-6754-43e2-a4de-fdb380c301d5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6106434784646459e12da88b6f1f594b03cc6b067145612a288aad7b4268fa52. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0sL47Yi8MjamxBG7p5GVE5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0sL47Yi8MjamxBG7p5GVE5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d476d7741279a045887e41984fdfdfad935560ad7ce6c3f98b0bc04401f982. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/47IFINrBUTIIzQ5zk4UmwX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47IFINrBUTIIzQ5zk4UmwX.
{"copyright_id":"0x58d476d7741279a045887e41984fdfdfad935560ad7ce6c3f98b0bc04401f982","isrc":"NL1DT2300043","name":"Wildest Dreams - Sped Up","registered_at":"2026-06-29T15:45:03Z","spotify_id":"2veBBnyj7RnUPyTDWMa2Yo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d476d7741279a045887e41984fdfdfad935560ad7ce6c3f98b0bc04401f982. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2veBBnyj7RnUPyTDWMa2Yo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2veBBnyj7RnUPyTDWMa2Yo.
Big Boys (live Saturday Night Live) (Sped Up)
Big Boys (live Saturday Night Live) - Sped Up
{"copyright_id":"0x71f37bbe96487926888d9ed43e29dbcbb911f07a9c9cf917f0c9b889bff50eab","isrc":"NL1DT2300165","name":"Break Free - Sped Up","registered_at":"2026-06-28T19:18:21Z","spotify_id":"5Df9rh9tRuEwNdOosQMlXm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f37bbe96487926888d9ed43e29dbcbb911f07a9c9cf917f0c9b889bff50eab. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Df9rh9tRuEwNdOosQMlXm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Df9rh9tRuEwNdOosQMlXm.
{"copyright_id":"0x71f37bbe96487926888d9ed43e29dbcbb911f07a9c9cf917f0c9b889bff50eab","isrc":"NL1DT2300165","name":"Break Free - Sped Up","registered_at":"2026-06-28T19:18:21Z","spotify_id":"00dibaGUSouBqWNOlRuflU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f37bbe96487926888d9ed43e29dbcbb911f07a9c9cf917f0c9b889bff50eab. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/00dibaGUSouBqWNOlRuflU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/00dibaGUSouBqWNOlRuflU.
All I Want For Christmas Is You (Sped Up)
All I Want For Christmas Is You - Sped Up
{"copyright_id":"0x42dc23e178c6c3de118e93cab1704ae0da036cb69e0f05dcce3f59d30029a9e6","isrc":"NL1DT2300223","name":"All I Want For Christmas Is You - Sped Up","registered_at":"2026-06-29T05:21:42Z","spotify_id":"6o4H0HMDhHf0MItwYMYTfb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dc23e178c6c3de118e93cab1704ae0da036cb69e0f05dcce3f59d30029a9e6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6o4H0HMDhHf0MItwYMYTfb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6o4H0HMDhHf0MItwYMYTfb.
{"copyright_id":"0x42dc23e178c6c3de118e93cab1704ae0da036cb69e0f05dcce3f59d30029a9e6","isrc":"NL1DT2300223","name":"All I Want For Christmas Is You - Sped Up","registered_at":"2026-06-29T05:21:42Z","spotify_id":"6N4coE06Cjc1XkzMvIIegW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dc23e178c6c3de118e93cab1704ae0da036cb69e0f05dcce3f59d30029a9e6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6N4coE06Cjc1XkzMvIIegW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6N4coE06Cjc1XkzMvIIegW.
It's Beginning to Look a Lot Like Christmas (Sped Up)
It's Beginning to Look a Lot Like Christmas - Sped Up
Rockin' Around the Christmas Tree (Sped Up)
Rockin' Around the Christmas Tree - Sped Up
I Know What You Did Last Summer (Sped Up)
I Know What You Did Last Summer - Sped Up
{"copyright_id":"0xc058456050da260b2c121fc4c7d6b64e09af16118111a2b74cdc496e5195d648","isrc":"NL1DT2400277","name":"Me And My Broken Heart - Sped Up","registered_at":"2026-06-29T15:47:47Z","spotify_id":"1vmSfedrbZocd19GSuGZki","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc058456050da260b2c121fc4c7d6b64e09af16118111a2b74cdc496e5195d648. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1vmSfedrbZocd19GSuGZki.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vmSfedrbZocd19GSuGZki.
{"copyright_id":"0xc058456050da260b2c121fc4c7d6b64e09af16118111a2b74cdc496e5195d648","isrc":"NL1DT2400277","name":"Me And My Broken Heart - Sped Up","registered_at":"2026-06-29T15:47:47Z","spotify_id":"1MHqFgfDMPCIGEy7WirieQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc058456050da260b2c121fc4c7d6b64e09af16118111a2b74cdc496e5195d648. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1MHqFgfDMPCIGEy7WirieQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1MHqFgfDMPCIGEy7WirieQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584363742379b037c47bbca08bfdef344088a3632e9439bafc7b0765119433ea. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7MEJoneNvwLngzKyNo5s6F.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7MEJoneNvwLngzKyNo5s6F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584363742379b037c47bbca08bfdef344088a3632e9439bafc7b0765119433ea. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2IIuAYK40BK25p0C41m1Z0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2IIuAYK40BK25p0C41m1Z0.
{"copyright_id":"0x8dde64ea7e18aad1818d2ba6dead317e2b7a3abb444fdd08b161a927ea0a3043","isrc":"NL1DT2400581","name":"Die With A Smile - Slowed Down","registered_at":"2026-06-29T15:48:15Z","spotify_id":"0m3HiHRs3z55Aq8R3jsjOD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dde64ea7e18aad1818d2ba6dead317e2b7a3abb444fdd08b161a927ea0a3043. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0m3HiHRs3z55Aq8R3jsjOD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0m3HiHRs3z55Aq8R3jsjOD.