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 0x3c43a8152949bbffd56bf90e7c8973caf10e2093b0c32df38881bc268855bf32. 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/acedcd06-d7c3-4eb3-b719-20cc4cea2dc6.json and https://artists.proofprofile.net/proofs/artist/acedcd06-d7c3-4eb3-b719-20cc4cea2dc6.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 0x744a19097896b28b8984299c7995d64df1a816e148a069fa306bf998129dcac7. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/IT7151582310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe559a1b1bd469278d6802f77b7525105432bae544de71d0fab8536c26c5ec5c4. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DECH61900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca26f5b5e728217e21ceaa2e062f5d6b14542435699ce703886db9e61e34b31. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DECH61900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0887551a098522fb5ab20445938a44cd69551c2ea7661b047ecd3f6bf2a755. 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/DECH61900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ff357a7b31ff5b8c598ba448393484db57789c0ca525a87689fcc655ff8703. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/DECH61900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88e25d87477fb6a6ac42fcf5aecc40d3fe00b8ef1c5109fa45a59718af6373a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DECH61900135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0550ccdfb2d2259c9b765d0e91467ec51ce3c06ce1d063c8fec9dcd4cbd70fe5. 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/DECH61900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf199aa26fa81d7e5f444a5b29edf98ce0cb2dcf4a36638495cff225c7a234b31. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DECH61900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe927aaf9c49c469dba584f5be78b0468e9e85d8d8947c15c07da6040f73848ec. 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/DECH61900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8117e81e6f0c06c140be64007c413c1324b18a24610daa9eec66f25dca90624. 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/DECH61900139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e215f7ab7a177b304a87300ac7654f314c21433476a7871750d0604b36c128. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/DECH62000497.
The Liberation of Your Beliefs - SHDW & Obscure Shape Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d99eaa64e796626302e2394d9e8d04b9565ec97c60944252d0677e2f42484d2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DECH62000406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6eb18e8131c9dcf113d360ba1fdc5773718bfc257787b9abe7d3ee0d547936. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DECH62000776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0caa3dc48196d4bb7b1bdc2416e06e0b66757d2da4a2594594e986f9a7c6f0. 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/DECH62000777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5294595e02cb86529bea7c2e6c77aaa6ff12f01771c2dd8bcbec8840b5f55c6d. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/DECH62000778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccba972642f891620e60420ced189f23d2932b0a721311c763a5310cb3ae52fe. 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/DECH62001040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1c16193e78fc794bca0802a6e5d2d39506344ff864d8e979f46f9b5ad1e32b. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DECH62001042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0170ec8c4dad5322350729e73c70a3388fa2f945c2373fc5e1724ea91f6635. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DECH62001043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c4eaf7f24b79d5f5038097305e099345a067a2fc241f3b56ffe5fb7eb0fbdb. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DECH62001045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc44d21b800a24b8df66d02a73f8ad06cd639af489469a6e0435e0359123f830. 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/DECH62001047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a69f8eca37d721834c2ed64fde0f4623b8b3e76e3e9ddc1b93470ccd02784f4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEPI82314453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a1f871d8318a9434d54a7a616fac0263d1fcec112ab0e12e8c9f2d973b5090. 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/DEPI82409807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5424dcfe7f5741e620948ad3ca39532cd28ce638faceeaa31a81bb05454f4c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/DEPI82414052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3db7ef3cb241217941e79bf27199d06bea9b3b3ecd733439dfa1aabfffd6707. 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/DEPI82415234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2812d6361c8d073b888d3d92786dcf321acb5a95ea8f6184b0491912f44fa9e7. 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/DEPI82432770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe6e5db04c929716f2664c63779bef42752a35cbb55fbe0d53b50e51d5bccc4. 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/DEPI82446389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce41d4439ac0e99ba7325546c23124540d1dc1c476d33f5edd03b353ad482184. 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/DEPI82451803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e5cef183904c2964f210677bf792302c84aa313d562f1e0f05c524f8d0dc9d. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/NLCK41058562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcceab1944aff36e3cbcfc0da2908f304cf3d8600891f68b4abe8695ec289224. 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/NLCK42400844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf016d21e1b936ca4a7c40d2a98294454600eeee921d0c7ad7920dd2c8d32b6b. 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/DEPI82430778.