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 0x089c59648812acc78424ab64725e5ae81fda87d5f06c8092ad18441686eeda54. 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/5607cabe-b173-4453-b56f-eca09d855802.json and https://artists.proofprofile.net/proofs/artist/5607cabe-b173-4453-b56f-eca09d855802.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 0x7bf8a09d4278b455052e086e3094df7b0258cf704f939cfebfc3ed641cf2f851. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCACR1615438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeafbf706c222f8eba664f3fbfdf6070bed231d9276e6533371bd5c486bc040. 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/TCACR1615472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf8a09d4278b455052e086e3094df7b0258cf704f939cfebfc3ed641cf2f851. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCACR1615438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b72052958090d7a85ca2de965b004ab361fcc7746c20bdb49ff18721e0fff6d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:31:18Z), 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/TCACR1615444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeafbf706c222f8eba664f3fbfdf6070bed231d9276e6533371bd5c486bc040. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/TCACR1615472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7a0b4a5a5c6942a059ddd0cce434c7d0bcfa2fc49c7c508117036abf3132b5. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCACR1615474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97870fb73b2584132c4c34f585b64f4541fafd459bee19671f121fe78ac8e78. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCACT1675705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b48af94d88b4add4ef57a697b7f9ac04d3c51ca0af5cf7a44e9e391b827affa. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:29:13Z), 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/TCACX1731739.
Sitani Tonkema (feat. Roden Y & Fik Fameica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce82e0dcc50ee2a9694ea2e6208206bb5e01433854c960dcffc0f52a6f75d39. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCADF1790421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544efd249500b146632dda2c170dfa6afd1a87f6b580a6fe41a3019aa192a342. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCADF1790428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedd4c18c74394adb427fb787f88297709c81fed7ecb4c2f055f510610b42a1c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCADF1790414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8466b5969bcf5fb3abfee239f400dadb4840521d410b32fce4f1673b72d895. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCADF1790436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac9befab8119bdbf25e20a05c0325a6f8bc954580c227e0ef94175a855cf5ed. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCADF1790442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccf1aed51673bf6319908679181d150a1d2582648851b737158eab4f55747ca. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCADO1844624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7ee0f1b32e30c271203faf2da04a38abe8a550219c9f42ffffee78a5686247. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCADO1844548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccf1aed51673bf6319908679181d150a1d2582648851b737158eab4f55747ca. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCADO1844624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7095270352f2017806a97cc51d8db9a46d9dbdceff0ce9a02b8369087c81503. 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/TCADP1852021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97be2ea97a854545e8bcb49edffbd5fa549c3a273437bf0dac49a774e0c18438. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCADW1882606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf02e623656998d546f992c7f80ffdbef6e48800e035c8abe979626967d70f5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAEC1923870.
Exercise (feat. Internationalboy Silver) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc930bb7711a1628c1c65a841bef3c208106c429ce98193c9c4eda9b10e3143c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:14:08Z), 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/TCAEP1914187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb881e7755933b9f028173f2eea758212349f5f261d966bacf32f60318b73b40. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:56:30Z), 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/TCAER2004558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69ceced5a8e18fbd722f7b0e48cd00f42144f87d4404a09675c14600d5927b4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZZ972337932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08156f4b28e5ffc66d7aa5802a4e8056be4540a94d45ae1f4dcaa67365b0fb16. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAFB2009568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b244a7c182f8f7efc6c34d0858c0a43d38366ac669dde7b17e77d9f9e67d8f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAFB2009579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6f3c17d4982999b5abe847a522212639a8d6fe3e30f7e180c81f63b7c0a78e. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCAFB2009589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc4da1e4e569c602e3ee68a497f6a138a3c11516f12b4fc1cc7a7597997ebe7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCAFB2009551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6f3c17d4982999b5abe847a522212639a8d6fe3e30f7e180c81f63b7c0a78e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAFB2009589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbf79d93ac1f92b37e18364ba4e7b479bdb95fd5a83eb80868516681739f552. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TCAFK2139351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc937290c797cc1ac064df7652fef0f8ae7bd809cbddb8cdf36faea0c53760030. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:36:23Z), 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/TCAGX2311004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d98521b5f1fbaf0cffb0447c66317522cd932356fb1f0162046d1ed67dd856. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/TCAGI2270020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dd5010fe9144e0a7aebacf4352e2249780469b287adaa789dde966ee707f61. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:59:23Z), 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/TCAGW2339047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3a6b7061ac27b9f901c8a6b737fd8c63d969d4cedb21276696d27f05827cd3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAGW2337226.
Roast & Rhyme (Nyam On The Nile 2023) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa456dbf36cdfbb5b1c9320c895911024b72a1e33b8452d04bc68d62958e61265. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAHI2321928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd2f45a08ba15c81886867e325a5efabe9a2da1775781ae939fee24ee407390. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ZA40S2501702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84ba4279d09206c7c5c66e6f0452334088d4329d28f3b3290ea9d0b7a3e056a. 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/TCADW1882559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae2d750c1ccd521c333e7fc826ed94c4247e4346c5556ea7b4d34c56ea2f52c. 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/TCADJ1750232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb0f025b6b9905a5e9f653ca24faa132dd9c5ca4ea22a69d1e2981c2b396a3e. 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/QZNJZ2389617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51263284d8ac8f4368c20a122e074c73c969dede0469251a3a7a109968f3b3a3. 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/QZ2GW1900116.