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 0xd8731c417b10cd44459b0ccdecf046144ef4d0befeb0a74d0f7bc2f9a59d11f0. 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/eba8f6ec-8616-4f7c-b13f-2e3bea91ead5.json and https://artists.proofprofile.net/proofs/artist/eba8f6ec-8616-4f7c-b13f-2e3bea91ead5.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 0xa365edd321fc10676ddd122a66b78df7b4f95199418727739d4da5ba4a43d64c. 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/ITPT22100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a134c80f8ce9a9ed9446d80e7618bc25f35fd2f0e069fda110212f9236745e2. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ITPT22100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50d4ceeb854b0b78c712fee3168e680de68ed3965ae05235e8b53e76ec73f44. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/ITPT22200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39453b1fc41cebb340c8ac448e14712d4d0b1484bc66dea438b515f2ec6781e. 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/ITPT22200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c45e5cda25948b07574edd169f00b333273e0ba92c87e0dccd4cc8f5f9f1b5a. 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/ITPT22200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c18f4a1ba5cd0b33e9bf6c6d9ab81f758f06f17eafece9a5d1a6972bb2e5c65. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ITPT22300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e8b39de47e947d6f8c103321988008c74fbd0e6b02b4608dec5f793b72b0ad. 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/ITPT22300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd18e0b1e8099dd675220a75b5272200a827daf750bbcc55b8ba4ce972d45db9. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ITM382300245.
CONNEXION (feat. Samara, Izi & AbSynapse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941a10bdfb56c8874cf20649f47355da77d5107531a39d394a62ea2178986c35. 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/ITQ002400108.
GENOVARABE (feat. Sayf, Sossy, MARVIN, Vincè, Genovarabe)
PROCESS (feat. Vaz Tè, Nader Shah, Izi, Ill Rave)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddebd523c1593003fe5ed70b12aa65b896ae231edacaed195731cad3a03298d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/ITQ002501342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc503630cdca9a1eed7f9aac96450821a029e8628ad4da038754633d14ce5282c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ITQ002500963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a005cceeeee91a72419df04b96ba564cf09b39fb690f5ab69005211f91df69. 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/ITQ002500964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29203e61d78965ca4178a89aec07a410674a91bff52099661ff4856af4739d55. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/ITQ002500965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca61b0de1359b1cd6d60d9a99c4f3cf45d8e1d35f4ca62b6c07a3c2fb047c3ce. 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/ITQ002500966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0ea2d4e19ed2d2314eb976c82084184af1720588f6d9c7c9b3a9404819b7d8. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/ITQ002500876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf81a02b8fab2528ea9fe93bebb1aabd1ca831a15a43bcab25bbdfd845ab89bc. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/ITQ002500967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41bbce6b0eb8a95c1d25a2035e0f9d62030c4ee7f599aaeca37abd89880f0d6. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ITQ002500915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4269c67423f097047921c8ae0edc1552affe6e81ff7783d5d14a01f648f067. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/ITQ002500968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf7c46f611b0865bd92c6b8563c5e30e989d828d2ba6a7f22caa0ecae620712. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/ITQ002500969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d6588e1be70b48bd7aaa4ecb1565907b07236e52a7688f43430a9ee8b9aaf2. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/ITQ002300642.
Criminel (feat. Helmi Sa7bi & Gotti Maras)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc01ff6a43ea1d6e4f7b726773ed716ef6b9767470e6f66247ca3d4580f57cb3. 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/ITUM72400598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b73fe7dda4279d389aae0e87cb12b802fd8c5e25b86e72874c8573f88796565. 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/FR2X42242870.