"Sunset Lover" is a song by French-Moroccan DJ and music producer Petit Biscuit. It was first published on SoundCloud on 22 February 2015, initially available as a free download, and was released inde
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93efa7dbbd5662ff0fcd1f537887b1fd18c9b10afc12336098384515b93ba265. 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/6e48ce35-276d-4ab8-9df9-18ae3ffb072c.json and https://artists.proofprofile.net/proofs/artist/6e48ce35-276d-4ab8-9df9-18ae3ffb072c.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf710cec1ab71dd09a34db32b50a818d4869a0b3a82e64e095614f8ff308bc79a. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAJB2422950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c64e69e51dc91eb893653924bb001bfcaeee0121bf14ca463574990b20b7e43. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCAJC2488876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2575ee8ce81ebca64f4dd284bd46695b5189d0df8f83e96da71e3e978f40d28. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/TCAJC2488904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c77dc7e85b6353b944272db897d0b288315ac7e6d8c67deaa99bd3d3a28da0c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAJB2489022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158d6eb3c0c6ff4f8acfa1d7e81c6a59b40fc62d6ae94c7f8c32bdfe5c216741. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCAJB2488858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1bbc0e7c3053693da1c3333c49c27f4ce3959c96bd91fe0421f50751c6472f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAJC2488810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a01cd92eaa0f7ccf56c046b5ca2323de93054f8aec834e0314081e7c361bf4d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAJC2488960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c26041996f2344dcdc0dacbfda09fa5f46f61cfa38d349d7a05198e35537c9. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/TCAJC2444020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd002fd7e1527c9023e0073dba0759f0d3153193e20921920057b20ea3c409f97. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAJE2444125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641283269e55c2501838a6504e2d1e9b40432d69c7e3ed68c9f92bbfccdf29d5. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/TCAJC2444076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bbc25ac58835bea7399a9e5d4e8a993a2c649fa5d7dd37eee136ec33db555c. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/TCAJD2444054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b826790726da66158e47287c40ca8a1410af6fed6e5f6d89a0a61166ed1bf74. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJC2444143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572a9543793884bcaee2e253878d79d4b6ad03fe70d23e97b41be57f0997e8b8. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TCAJC2452534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd518613fce27d107d3b5a1695238af38c10f0db8342f5b8d3e2b9d03ff6b5aeb. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/TCAJD2452615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3827635174f671ca930e902a645dcd3aa9c6d6b038644df2ea065f1d7798a2. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAJC2452577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8618472e1c8c823090c7623d762174ffa45379de5e71176c2428f91b2c2562c9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAJC2452659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1566aa6f0558abf7bc15435dd021236642e7164118218c85f103ce659acee449. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/TCAJC2452694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefec32805183f89ce16ba9ef34a9c6503e47a25815d5f61b3807c8c2c284e23f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJD2452736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23e6acc52ea1fe155b19d4fed5d1b55d1e8c10ef019d0a5893be4e0f94c6a8e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJC2489148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe124e55b970ca5062f06f021d66273fc972f9f4b1bf925b5fd4a11abdf98e995. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/TCAJC2489066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02a976a7ac9be551171d4d50edcda6f022786b60604452d4a0ef5ecf73d9b3b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJC2489191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2e7d206df7741a86875906a4705ce6e604bff295987d2f297e271b551f04b8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJC2489170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900eb2fe5af9e2919dc40e28d73268640b209b95b5335d8993f41cc972e738ed. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/TCAJD2489077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ebc1c1a5b3fc73b8d4f434ba7d21ca0a9bfca4bb8f32f57fa1b57e2480edc6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAJC2489100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb269af56ee06ed2f1a5b49cf609a606f56f2aa8cd2df8fa036e548a699853ab1. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TCAJD2464996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca73ba61deae48b51edc3a2aba55ed8fb02afdcbde740fa0f2554c5b126170d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAJD2464933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1423f09d5b1a6fb41dc302919207560a2eff542b656d3eca157e0c9acc82c7. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TCAJE2464956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe90cabc3880db73b46187024a0c98c44d0b896b75ef4299b46e3969f5a4fdb. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TCAJE2464916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24d561e6e3c5a5be24a127881f96ca7267ebb8e1f4db07ab2915d4dcb544957. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TCAJD2464896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65216f2ec3e1d41431f4510267369adb8ce714144f9fb07a21e1c306ebb07d09. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAJE2464884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e923cd59eb8ba0ee7aa01f0dd36dda9d6d34d4bff1c727782eb2369675b0937. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/TCAJE2517659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe213b24e4bced6b9efbe36c043e88926314027f854b7757ab3ca0646ab28a13f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/TCAJE2517640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805181847b50a0a2e787dc5212cc496e7d4a4491e6ba5f32071a707c5d748cdf. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/TCAJE2517674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcc4eb3f65c307ae9356d051f768606adafb0e9526b49994b017aa26c2bbbad. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAJE2536040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a3da065c0cb78c49ab7f416926ab3b30fb21a59de7124821e39e11ebb519fa. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/TCAJE2536058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2527c6c7852ad52ad78210c0eb3a6e5c8858adc37f2a4bb8ea96cdba600cc5b2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAJE2535981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27b471bd83c98322692e922c8ef1e57e65d79a11104b1c764900654ef62c196. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAJE2535960.