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 0x8e54b4094937cb0ea9ad022d572e6f0dbafb155398d32739e860e4184a78f29f. 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/65a41ffe-c22f-4efa-8af9-cab16cc65fc2.json and https://artists.proofprofile.net/proofs/artist/65a41ffe-c22f-4efa-8af9-cab16cc65fc2.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 0xcbc5c3c5c73c934c6ec4075c9d9e0cbf03d37fb395128f49eef8d39bff05ef59. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DK2DY2300317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a78b2d773a350d5aecd5d429a2481e33ceb262fface1d5590e813f4327c409. 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/DK2DY2300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc586a1011a4cb6e885e50650a18d0df35174f035a980798c3971db4fba92e114. 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/DKFJ42100475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446484e6b9c84a49665438b60d4034d479cec0ebbdd75a0922f10432606d837b. 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/DKFJ42100480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219ede2db37738a039feb614437d0680bbfe1f09c9bc6a0dd17ea659d7e5c04b. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DKFJ42100472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc3a0556d3feeec2a48459630cd6ea0f820b6d398a527b73a0f0b5870bf48ab. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DKFJ42100478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba27ddcf9d1108941b76290996f69bf8c04509f84d558b6114ab5ac82d7843b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DKFJ42100473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd415bbfddc73251ab2b376045522c8c0542182ed1ae53012a9728a7ae1b71b92. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DKFJ42100477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef6b46b0a136435c692b2f6bef30ddeb66a411df6261bb135a1d29689e2d7e5. 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/DKUM71500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a7ea1a0a538cde0a13212d17f9e98e2027ad3ca261aab8e487add078beaa49. 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/DKUM71500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8012c7862d4342ff1976ee88869ef93d0a0d35c9924a89686c5081bc436a4089. 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/DKUM71400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc651765277b99d7ed0919bbcc1c79988e389a517e2f2e7c2031fde35ed8bb1df. 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/DKUM71500162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319fe883568408fc578d1e19d76f3e5430a00d7a71f35235f496554aa481078a. 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/DKUM71500211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44430f90a8e824adabf7cf63659df91639a5062ba123dabef16ac669f058e90. 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/DKUM71500212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd02176c0ebdc6dd7a8f7346c848e2ec239cefbb7d07eb68770e6b5530cb4d2. 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/DKUM71500213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0823ca80d29a6ba45db0f5321da44e40ae7e5fd2ea0de8c6d79588972cece2d4. 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/DKUM71500214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a99d3393a5c89ffe806527cea01135addf7e88037976ac1d4734f28856f88ee. 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/DKUM71500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397388f884e68a8f6d338151154a87bafdef2098229510cf6e8a5e8796cbaa6d. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DKUM71500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063024bd24290dbe713b81602f9c4ce6a18ba11fc8c5a5b4dcecdcb12fca3b6b. 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/DKUM71300617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29afa496e913f57c2857334ddf4ea980269d00620b979706bb9a41ee368e48ba. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DKUM71400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf793e87432f570555054604e51adbb561e38537a433258f08194b37761335bfa. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DKUM71400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89be7d7251ac09f5e74b3e80cec50aab06211b2390e278050b9b90f450d9a3f3. 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/DKUM71400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f7a3c3212aa77dddd56e8e6786b6fa9dc65bf4cc3110fe5d32d167c7572df4. 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/DKUM71400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfec75ed32af921d911bb719fd4804246f0ce28d83af7e23c97bfd1492fb8a29. 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/DKUM71400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5105e9413e2e54e9770a29f0782efcb1d47c685e6ce79aea15f1e8bcf7c754df. 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/DKUM71400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77e90bc292015023702b6e228aba9329f1527c23956dfad61706b9692ec9b98. 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/DKUM71300804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13417e99b3bdd0c898da745d203f8f367a8792463d4cbc6730b7915ce92ba3d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DKUM71400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb18b8115724d1e27c4443143809ef3d7a7e288a17d929843e97fd66743cfbe. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DKUM71400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec96cfd7d792afd4c8b6c53b6d71c4529917da05571af405425ecbf0538b4703. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DKUM71400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bb327414782294df54bfa87bfe01a27352b9b57c13f4709c407dd635cb35fc. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DKUM71400096.
The Hunt Chapter III: Freaks Come Out At Night / Peaker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b642c911a2cf180cc48ca7439283d04e4bdc9193b2c59a67ef25d61256a9b0. 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/DKFJ42100474.
The Hunt Chapter 1: Ude? / Kender Mig Ik'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6425ddf96fbc5e49a47a2ac4723d799a61ef8b50d866a80be37eff7f8e1a2501. 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/DKADG2000990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6027cba9e98b0082948cd5ae4e570f0bd6c70f04ba1adb30e832d11a3d1f95e. 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/DKW712000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c93afa6933019a9a9283513a4a54f746a2edfa2928052c8dda7e14a23f74b0. 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/DKUM71800071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1824565f2f8e9be9d1e418e18080d7202677016bcf80cd7abbad8bd266ec81ed. 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/DKUM71700262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b71f10239b5fa82a5bdde19443e3d7d99a0914a7b2c0a2e0a6262c25a28c8d8. 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/DKUM71700104.