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 0x4c960f20da5b574be52b8a4eb4c37748874e65427263cb8796d8a34ee7235f30. 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/55cb878c-abf7-4630-8221-2530e5fca607.json and https://artists.proofprofile.net/proofs/artist/55cb878c-abf7-4630-8221-2530e5fca607.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 0xac775f8cce90a207cdb1bf1c88b62b5da00058a98344e1b023a52622de2ebb3d. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USL4Q1884619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119659bff0555303f88201cfc5b73f1c233e892105f9a32ee81964092bf3f2e6. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USL4Q1884620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab5ae11fba15397a6dfb0dbe0cdcb06069a8df8d1442c0451fdb9dc3538b631. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USL4Q1884621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38a58f4f0caf2713e9aeace4a90ab4940da8cc8c13b97bff2c4a1ad5c342fff. 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/USL4Q1884622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c73f98b5cbb54476227831e148260eaeda3dca72503bbfa82dbfbb7e543579. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USHM91924610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9caac8e9965d6089492b1ef286a9addf67133777619dd4639b24ca47111a438. 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/USHM91924612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da064c28e854ad0a06a978e132d7651f065fa11ccd4781e0fa782f5ea3d32db. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCGH2069904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7de4044b0e6860354e79db95b5cc56141615404028dd806ca181d062bd71424. 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/USCGH2069905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0946374d482e678b7deee1bea420a91b4cf408057bff6828ec3bea026df6c8d8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USDY42053635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8f8acebff0a240b12281276753b6cf054b0ee4d0c059bf3f34f0802bdf4273. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:46:46Z), 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/USDY42053636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fb70b3f2e5a5dc065534e7a05a9143f809b01b9f096d7a14912343245c911d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USCGH2164458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0319cfb2b1f5e890b41d874e75ac60b9a8860b116b7c159b9a9ed031935dbc8d. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/USL4R2145337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cdbc1c28754f04897fb35e70e6ffa4f8fd4e5c1579557da2ecbc49aeb353d4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USCGH2304974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6c2f15effbacdc4957bf37bba82136a4a51d5d6169e9bb65b472b1bd234597. 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/USCGH2304976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a26caf885451e9137fadf3e0262d50bf09ada69fa3ace42e75661c8eb8b6fa. 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/USHM82408652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7602b05aa5a8f1c53b59b8809f1895750dc303a66f2d1e71d281411e1d76eb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USHM82408653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9dd2afea58aab4b4d117a1bbe306f51d726e3e9370d7d1f1e73c28dd1af83e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM82408654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7ead5c02b3dfedbc4e22bde3678a23bd3881282a672a344a4ec434440c2b30. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:31Z), 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/USHM82408655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3555c9f0b9529ee18fcb57a4944aa70a32caa50346e2b26f61335ef1a9198059. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QT3F62534740.
Holy Fire Your Glory Is Here (Spontaneous)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd37d9f41aa14071bb59e82ef47d8b0b253906c41131ce38fc7527de22b6c2d. 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/QT3F62534742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1036a80a9aff9f5aed641841bf581a78d2e76116ac2985bcc43d5d6f60ba13a0. 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/QT3F42518264.