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 0xe7bc9a92b6f46aeaf542f32ec7ec2f46145c3522e009325579cf325f89109fce. 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/7d4197e5-bcb8-4a5f-92c7-73e8e32946ce.json and https://artists.proofprofile.net/proofs/artist/7d4197e5-bcb8-4a5f-92c7-73e8e32946ce.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 0xfb42a477788ba4102943a3e446c549a784e86b08d87a78a8a4acab6c30a67ffc. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:20:44Z), 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/FR0U91701294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915998168648d8f6c4e0d390eff7ceeb928c87ec5a46c91b60a94b9c1e257521. 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/FR0U91701262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb8d9579f0be744b6bfc66575746c65804c50edc359f9dcec7b9e58efbd39ec. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FRUM71601870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6110f031078e01d5eb05d50809f7094a80c884b3ce7f5ab20696b834687db1. 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/FRUM71613531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946bd5799bc1b83d4a965b418ca78ca91982d1b360ce4c93c09bd9ff7eaa3411. 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/FRUM71701317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f85b85276d7788f4dfac9a0f4430d40ec263a156d2e734dd51c071c15d4478. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/FR9W11800684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1d5f0fb59d477662ab23569697845608e860b991e65952db8b0e0d51c19052. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/FR9W11800677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c78ded3816ca9ba6559661bcb6fd70718056628f72c9e16fb562236da6388b8. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:30:23Z), 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/FR9W11800678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860a8e097cb60006f470f147ed16a415bfea64dd3e51193ff73a747029fd11d2. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:39:33Z), 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/FR9W11800680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddfd9a7f9731f4e9f94650824452d2eab11c736e6341b8acc295145eb30cc8e. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:08Z), 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/FR9W11800687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203d5f3793eab9398f13b07cdcc4a92a5ea9847624c7b1ee38d662370ff12b06. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:18:38Z), 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/FR9W11800690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a9fee0d69060340058b3cf59d5911918bc4e18155d6816914c7ad1bbbe53cc. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FR9W11800691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48827b6f9c00c821276287ae40f4382687fe11d3b020262e3c305c43bb867ee0. 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/FR9W11800693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896dd0b0f4cf30e53b620e6d770eeb82561768f66bcb3f41a712c79c7dda13fc. 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/FR0U91800620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae23a4af2800c60a0e2d8ca0a190884234c0bdcc244143e6fe56b0300c64a52e. 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/FR9W11912321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935363187ccedf7d0ecaa8f8e95aa088683889791af273105679bc3ab623bf6e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FR0U91900254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe481306753c03a4084ca9269dda5a2a7b9b8a3df4021d3fb6629263b07c62bdf. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/FR9W11925075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3783df267c3369d231c0aab3085b2da813313fc7cdd82112ef0a4b9825f2aa68. 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/FR9W11925076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac206990a86951262c2a32cd0bb35ec78cc94d027ac6c24417f37b427070b2bf. 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/FR9W11925078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc0b9676b261eb6915b972383c82207d0370f2f2e74768057ba953738e5c67c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:22:06Z), 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/FR9W11925082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fcbe1bb19022d2613814ad769d0ae008a023c1208c2070a34bd0270854ae6f. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/FR9W11925086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3783df267c3369d231c0aab3085b2da813313fc7cdd82112ef0a4b9825f2aa68. 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/FR9W11925076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a34790ae8b86bdcd6dcb619075ab890fe71928cea412e71f6ac9f57b74274c0. 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/FR9W12016287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ab4b7f4daa83a57625aa1d61dc85f4856084df38e36414891d04773a1080a0. 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/FR9W12026658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8906274e52a303db476223d8384ddbf3463c480937a615bc1aabefa3e66b1190. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/FR9W12026660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48a7a9b2d552bd0489dd8cd7d57bd244c23647b68a9bf85b798988de5bcf78a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR9W12026661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb7a403827ccadc8dd3a507b68e19a2c20d1f5db7adf1f9217ffc51ecc0db73. 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/FR9W12039425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007546d4208e5b365658d469158d014c0ccda084a74e2554bd26c10fe1012e06. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR9W12026669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13aeabca6ce934f3197fb960131545e841deb2e287df7b024544799b29c08794. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/FR9W12129584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3389d81c3b4927080d1bd1920fc83e3b8d7b80a6b9d9800cb55a5bdb65d655ce. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:08:22Z), 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/FR9W12042691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67491002e11a62e2e09a5065fbd6196b3285dda6cccc3561b5f053f88e987728. 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/FR9W12129581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae350b49b77fb8132ca571db0dd5f5166f1dc0f364643025bb06fc9a71bc16fe. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR9W12230070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38f3242bc0c49a13b74d270e2a2288953dde38edf563f68311523b259a30293. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR9W12237844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df0bcf30b1ee4efe23d0b8d9992895015736518a648d0736f0577c1d0c73861. 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/FR8FB2209190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c82cac287ab41eafab57891aa001ec867dbc2df32ca6d748874fc7ec7a5554. 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/FR2X41900911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86413d0bedf11c761783d8e42051c104b0dec9c37ab9208201f076bfc812dc6f. 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/NLG661800495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30c6b2e7ca4d02da8673c8c3c38c7c675ffb67729cdeccc3d63ee58383d07fb. 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/FRX762125241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81a04fb75e308cef55f22adfcb69aa2d10fc938087d8d5161960ba00e353812. 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/FR2PY1600430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c73ed3b86706122fcbbe6e1db94e834fcf8818c63738cbc1c65de21bba3a5f4. 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/DKUM72000011.
Où est ma bella (feat. Clayton Hamilton & Alrima)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653e6821456bd6827efeda8d06e8f0591c40b0cda68a5c434482346a05529760. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR6Q11500121.
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 0x6b78b32d33e6f15f2abdc7d346901209106c8d2de68da0cf5bc80859c6b30e1b. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FR9W11714725.