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 0x409c2c844a30d26f10b22f56f2a09b52d7d58e0f2dca02c3079e2186fe07e3b4. 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/fbc75c5c-dcf6-4b6d-8082-d67da9faa4dd.json and https://artists.proofprofile.net/proofs/artist/fbc75c5c-dcf6-4b6d-8082-d67da9faa4dd.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 0x05967cacfcfc194546dd48b4540bc76e7977b78e2354442104d4dd998fdd3ef7. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/GBEFR0500575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afa3897c88e9e797396237472b2814179a905cf8b102573e3d2a5e3b34f9c30. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBEFR0500576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88138b9a8b812da343a0b040352b9fd27041bc0f5d5ed07eab0cc9b9ecb7bd3. 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/GBEFR0600800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db27ea107b9a6193e929dbd86a8d71f29ddee9758a98be166f98f7c9c429259. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBEFR0500600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cca6ae62ae0d8e52008f80460be6a696ac7b2a216876ad970f2ca87710e74ae. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBEFR0600802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebf53fbc7ab70d813d3ec3aa9fc4318985fc45d5784d93ecbce60592a00bcfc. 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/GBEFR0600804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920fee2f9d28fd7122fefbe8d3fd57c28b550c4e6e9960643ffcbcf990897b24. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GBFBC0700375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71163c1aad0daa0c8a31684bfdf8cd74c5cf3de0bc4403223bf72d17c80955d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBFBC0900538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55afd88544129981646ab5b8bafda000a3e990396470b4cb0fa794c679293829. 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/GBFBC0900539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bf6616b46a1fc9b75dc955d636801c7ea464420e80a1d4386a7a75b17101c4. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBFBC0900542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651d4de45b08fe41811e8e217d8dbe523d61ae19edd30031e7266093bbc2f631. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/GBFBC1901836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4954d9344aa85b2b5e868e1749494f87b1ad5e07935d263acbf8494fafc32a2. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/GBFBC1901841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0596269f944e18b193e5ec5fbd225d56cb62b4c3f9f85a0bc2b8e33c80d29ec. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBFBC1901843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98810bae6c34f1ceba553e57101f8a9adbfdb3dc5f48b0d2758811a9b9fc5c4f. 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/GBFBC1901838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2f6c274aaf82660e08167b1a88dac7c51d5ca78a1f26f8c117bf8254decaac. 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/GBFBC1901845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf98d10d9d6b7f2a0dbe17e49662370f43a15356a49ab9e945d745395d927d2. 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/GBFBC1801698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8cc2d9e8b7e7cb74d999437f92533acc0bf8aacff398bf6dc134d2c286605a. 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/USA2P2036125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d70d5ac28367569ca173599efbcd7b49d5ffa662c8d5bbcac20e77f68ac594d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBFBC1901781.
Funk N' Beats, Vol. 1 (Mixed by Pimpsoul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bb48bcb6b19745b2c259e5bd78839f0e16625d0ce516bfe74dc0a6c11d2795. 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/GBRGV1350206.
El Chiringuito Ibiza Beach House Sessions, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc0fcd4bef1715dbbe6ca6586f5e9f6a057fe5b211b686b67aeaf71d8fffe33. 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/GBFBC0700376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db52b8ace66aa79d7f1007284839b7cd558d0c3bc4bafb9ff254ae98fe36b27. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/GBFBC0900537.
Never Wanted You More - Dr Rubberfunk Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d12328ca2349180120a19171fef0bc19838b715720182f27914f3eb6c78019. 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/GBFBC2001915.