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 0xd1417c5206357afa05acdb0c196e55d28395df872a7e47928a1d26542c291051. 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/25788a61-0985-4a98-8638-07853aed1eec.json and https://artists.proofprofile.net/proofs/artist/25788a61-0985-4a98-8638-07853aed1eec.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 0x5b782d77afcd502280ce13eb05b5ed073a97391d90ee1eda05c69f4a8e634fa6. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FR9W11902239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9ce57179ceca20cc115020079f0e95c2dddabe18f13dd1183e9946fa7d9e3b. 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/FR9W11902235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7b85b1806f73dec763d99e6fe12db103d522d92773c910aa9804c3b852e308. 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/FRPGV2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1a4793de59fbb98f81758a8caa06a6030429f69b10bc1742a8cb68c647979f. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FRPGV2000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f83129b9fd0498bb18e4296138326027a07336596ac5c181915a32a343b81a. 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/FRPGV2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e6e2b5de07938a29613edd731ca3a69761bbad40ef60b7da0f55abebfbe13d. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/FRPGV2000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de3ec26cc31dd3b3b567f0932e28055f8036da64818e6c9428b7d014838e6dd. 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/GBEWA2204940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebc394d9e48f5e4a1ada33635bdf834a388a98f0596d9fb1aeaeebbeea946ec. 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/DEEK22500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec85288820bdeded958f7c26e80b3af19a2ad76e97185e0a4baddf382af240ca. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DEEK22500186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a40f6fb8582c366af7824c68c831d896f66227ca04b399a9224efb9295b1ae. 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/GBEWA2301606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40196b72df28e00f729539359c865d0713e3a1d13a2891955ee70c92902a96fe. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBEWA2307043.
The Anjunadeep Edition 384 with James Grant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b78ba1f26658173c1738ceeea5f667f7563209ec50fc83f5efab7492fb5aaa. 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/GBEWA2200660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b01ed93d7c2089e8208b2c712afb14c0bafd3bf5634ca798624f60cf94c02c. 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/GBEWA2205881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e4fb522a4eab1e98210b0146628816169124e45f03ee66a8702952a91dcc6c. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBEWA2305204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41bf3f0b9afaabc93cbf1a40fe68a2b448513e037d0144a60a5b15f8671004e. 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/GBEWA2305064.
Coming Home (Record Of The Week) [ABGT545]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50eb28924fd32d45c8e6f325bd4242ba17e961b1e5ff5871b404b4af3e4018ae. 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/GBEWA2304955.
Passing Lights - Cinematic Version (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf842be654b38d6c24eff1ff9b0189b1da28631e3eb455c844ad8d5adff178ca. 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/GBEWA2206917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443d9b8ce336048994cc1d2d378526f4db75cb56a5d2ee673c902ccd34ad1c27. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/GBEWA2306763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67066e0ce1fadadd73072c88eaa58c3353479da1a39308a284ccd7d554d259c5. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBEWA2304200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98af6331ca67466f155c92c79a54bbe1856e7b4d6f0eade64aac03cce866b5f. 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/GBEWA2200059.