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 0x3e6ff822f161dbc90eccd6663c7c968d09fd11c9e85c5ec2a244c72ab5e4f460. 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/989f1a89-badd-43e8-a3d0-7846e257fb1b.json and https://artists.proofprofile.net/proofs/artist/989f1a89-badd-43e8-a3d0-7846e257fb1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Karima (feat. Clandistino & Soufiane Eddyani)
Willie (feat. Ali B, MocroManiac & Kippie)
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 0x115e5d2914087b48b81ea6af01efb5c854aa48607930a905d87d5b4ccb7ef313. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLPM11725101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9149e2474703feaf56d5eef21c3b8ebe15e9ae9a9919aa202f60cd870742aed1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLV6L1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8980329b1bbe7d532778405d0749ed276ddbfe04aff44e5575850fd409e81ad. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NL1NU1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b1dc5b840a8bef6a7898dbdf272c027faf790ea9b15875c2ed848c84aba0e8. 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/SEYOK1935437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4989a28daa36e1069af367cf5c391826730fcb210de34fb98a7010a8489a5e6. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/SEYOK1937694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f05a10566ce779220908cfbaba09206e145a482a2867fd882d995c1ba35a0c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/NLV6L1900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6848a1e5aaff6ea8f30627c1426da7c6a02fdbbb871df93f09f274d416bf812. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLV6L1900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9298aec8f9137990208cc911716e750f4ad9028d2b55047c141b054ebd3c3a64. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZHN52067153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18722ed5a772d25e92a0740174874e72a45fec4603441442cef227d14e75055. 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/QZK6N2003173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb9202d669d11e2d6bd6f6da6033df21331ada36550a6a5c257e3aa2047b42a. 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/QZK6N2081200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea48b51c70e67afabca35245206a1e570e1607f66fc5dc4a7ee71df1c7e02da7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHNA2074196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12e681b733f6169c8276361b986981dfa12f538d802d4ebc05ef2cb9c26c298. 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/NL4LA2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a603080138466bef3caa6b6bcb64dd4118e59b4cf027975c149a7978863530a. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/NL4LA2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12e681b733f6169c8276361b986981dfa12f538d802d4ebc05ef2cb9c26c298. 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/NL4LA2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccfc562145b9ab8c0a84b92c73e4551e232c5038617f480a3066e86f289b09b. 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/NL4LA2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5eb6007e47728346dda81471e15856bc08e06250d59ccdafed1ff0ebedcbaf. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHNB2105006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1138ed49c4db23bd3a6d874ed7413a7d252372043262b84ae6417a1c0f2526e6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NL4LA2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c94c048e997fc84a5c6c330ae8ec647f57236fd8c2b5ba6eca67558ada8b87. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/NL4LA2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6bcc52b0d4156c6104fc0036b0545f93677251c0ec0a684e78e0b2da1cbc15. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/NL4LA2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7e279c496cad326de38809eed549cbfa0cf5757b3dc5d06215b03d3f3554ac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NL4LA2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560b4310125d8642b3c7db26ce6376139e5efdf06cdcac26db13e597fd5772c3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NL4LA2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfc516e16d7ac7a356b0616aa25d2ca8fc282874f9192d093189132843c2d21. 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/NL4LA2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b97fc12580ae750e43c66f5e7096cda558417c547f497b2b2d7023399f060d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5752383413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0689d14cb02dcbd48f3e70e2123db3ffb43fbfba28409789d041d161f53c74b5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE6SA2324646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d1467d3f6be8ca2f2b43632975970e78303c6795be2058a836e53b4aeb9d6c. 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/SE6XW2324127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb184589c10d523ac1cff16d0da94fd273477773334703a2757f902f6c86be2c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE6XY2364838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b30eebd073472c936a5785341beab614d4ceabc3cc5a5bab4480a421af2c1c. 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/SE6XY2383842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090802e81adfb1044c4277c1fcfb40dedc42eebc4d1997f7844a61677deff248. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE6A92360612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e6c018d99a12106f7edcd5d9cab44d19d4e05f7ab498a9b335b03fd93db0dd. 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/SE6HN2460416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c925ce37a0301f2e018f97c7aecab1ba176ad15fedd043b1ef313cf50cb9fb. 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/QZNFJ2402299.
Daba Daba (feat. DYSTINCT) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c1b8bd03d233277151803988465fa6611b058fcabc57e9df3dfd17d96749b6. 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/NLV6L2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3d34735d856b99faa908a7de314635b9f8d43efdb95b94ca45bc307ad938f8. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/NLV6L2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea69f38dac8a02c6a5433bc0472f946a35b29cc2553990c69dc19709b5bda88. 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/NLRG20000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c925ce37a0301f2e018f97c7aecab1ba176ad15fedd043b1ef313cf50cb9fb. 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/QZNFJ2402299.